53 minute read
Products in Action
by PHAM News
Heat pump carbon cutting
A London hotel has recently upgraded its hot water generation plant using the Q-ton air-to-water heat pump system from Mitsubishi Heavy Industries Air Conditioning Europe.
The Citadines Holborn-Covent Garden London originally had gasfired boilers, which provided potable hot water to the apart’hotel’s 192 apartments and communal breakfast area. Citadines required a replacement that could provide water at high temperatures, while ensuring minimal environmental impact.
The project at the hotel, which is part of The Ascott Ltd portfolio, is part of CapitaLand’s 2030 Sustainability Master Plan. Under this Plan, a phased installation will also see the Q-ton system deployed at four other Citadines sites across the capital.
In addition, the hotel is equipped with a Q-ton Remote Monitoring System (QRMS), a tool that monitors Q-ton’s operation, provides the team with a quarterly report comparing energy usage and efficiencies against gas and electric equivalents, and self-analyses to highlight any potential operation or maintenance requirements. ◼ phamnews.co.uk/123/28
Modular solution in the restaurant
The latest modular commercial boiler systems from Vokèra by Riello are providing a flexible, space-saving solution for a restaurant chain in Glasgow. Local heating specialists, ACR Contractors, installed a Riello Steel Pro Power modular floor standing gas condensing system to replace an existing Vokèra appliance that had come to the end of its life.
ACR looked to Vokèra for a high efficiency replacement that could also overcome the project’s siting challenge. As well as matching the busy restaurant’s heating and hot water demands, the new boiler had to be installed on the flat roof of the multi-storey building, as no internal plant room space was available.
The standalone 230kW Steel Pro Power was supplied with auxiliary accessories for outdoor installation. Ready for simple and quick installation, the system consists of pre-built technical cabinets comprising an assembled frame in anodised aluminium and painted panels. On the Glasgow project, ACR was able to partially dismantle the cabinets into smaller sections that could be carried up stairwells and onto the roof without the need for a crane – saving this additional cost and minimising disruption for the restaurant. ◼ phamnews.co.uk/123/27
Monobloc perfect for zero carbon homes
Exeter-based Unitherm Heating Systems has provided Vaillant air source heat pumps for a development of zero carbon homes, to supply heating and hot water.
Truro-based Verto Homes selected the aroTHERM heat pumps for The Green, a development of 30 sustainable homes. These homes all come with an EPC rating of ‘A’ and benefit from exceptional levels of insulation. The monobloc heat pumps use the natural refrigerant R290, which has a low global warming potential (GWP) of 3. The units can reach up to 75°C to help with the production of hot water without the need for an immersion heater to protect against legionella. ◼ phamnews.co.uk/123/29
Untapped potential of home thermal stores
One of the challenges of managing the UK’s electricity grid is balancing supply with demand, and when supply exceeds demand, energy can be wasted. Isaac Occhipinti from the Hot Water Association explains how hot water cylinders off er a way to absorb excess energy and cut energy bills.
The household hot water cylinder not only provides homeowners with all their hot water needs, it can also act as a thermal home battery, storing excess energy in the form of hot water, as well as supporting the grid during times of lower demand and higher input.
Here at HWA, we have long supported the ‘home battery’ concept, utilising the domestic cylinder to serve household hot water needs, utilising ‘free’ energy. And it seems that energy companies are starting to realise the opportunity that hot water cylinders off er to the wider grid, not just the homes they serve.
Some energy companies now pay consumers to use the excess grid electricity. Cylinders often have spare water that could be heated with an electrical immersion heater. With the right setup, consumers can allow the system to turn on their immersion heater at these times to use up that excess electricity. Seems so obvious when you think about it, doesn’t it?
Isaac Occhipinti
Director of external affairs at the Hot Water Association Untapped potential
The energy storage potential associated with the UK’s installed capacity of domestic hot water cylinders is comparable to our entire fl eet of pumped-hydro-electric storage, and with just a fraction of this resource it would be possible to absorb the largest surpluses of renewable power that arise from off shore wind and solar PV.
A standard 150 litre hot water tank can hold approximately 7kWh, with a range of anywhere between 90 litres (4.2kWh) and 300 litres (14kWh). This is comparable to the storage capacity of a home battery system from brands such as Tesla, Sonnen, Powervault and Moixa. With over 9 million domestic hot water tanks installed, we potentially have 70GWh of untapped energy storage – around seven times the capacity of the UK’s largest pumped hydro facility, Dinorwig in Wales.
Grid benefi ts
Connected hot water tanks can also deliver a service to the grid like that of home battery storage systems. Not only this, it can be delivered with a considerably lower environmental footprint. For example, a home battery consists of upwards of 100kg of materials such as cobalt, lithium and copper, which all come with a hefty environmental footprint. In comparison, a modern hot water tank weighs around 30kg and is made from recyclable materials such as stainless steel.
Hot water cylinders also come at a lower cost to the end consumer. A hot water tank can be installed to provide grid services for around £200/unit. When you compare this to a home battery storage system, which currently costs upwards of £3000 without installation, the savings are signifi cant.
Fuel poverty case study
Utilising smart grid assistance appliances can help the UK meet its Net Zero targets, but not only that, it could also help us tackle fuel poverty. An ever-growing societal and political challenge. Social Enterprise EnergyCloud aims to create solutions to divert surplus renewable energy - which would otherwise be wasted - to Irish homes, with a primary focus on those in fuel poverty. EnergyCloud estimates that 1448GWh of renewable energy was wasted in 2020, with approximately 461,000 homes in fuel poverty across Ireland. Their pilot scheme, which started in March 2022 uses existing cylinders in 50 homes to provide ‘free’ hot water from excess renewable sources.
Early indications of results from the scheme are promising. At 2.15am on the 7th April 2022, the fi rst EnergyCloud message was sent to nine properties and remotely switched on nine immersions drawing a total of 26.576kW. As agreed, they were switched back off at 2.17am (two mins later).
There was estimated surplus wind on the grid that would have enabled EnergyCloud to switch on approximately 500,000 hot water tank immersions to use up all available surplus over a two hour period. Government aims
The government has announced a number of plans to accelerate the deployment of low-carbon technology to ensure the UK’s transition to Net Zero by 2050. The list of measures includes a target to quadruple wind power production by 2030. This, alongside the deployment of more nuclear energy, will signifi cantly reduce the carbon intensity of grid electricity.
In response to these market dynamics, there are now hot water cylinders which operate with conventional gas boilers whilst at the same time are able to make use of low carbon electricity whenever there is an over-supply of wind or solar generation relative to demand.
Climate benefi ts
The Climate Change Committee has identifi ed that load shifting through behavioural change will be a key part of our transition to Net Zero. In particular, ‘pre-heating’ as opposed to ‘peak-heating’ is essential and, for this, we need to encourage the uptake of fl exible energy storage through domestic hot water cylinders and smart controls.
From a consumer’s perspective, replacing an old hot water cylinder with a modern, well-insulated cylinder, coupled with smart controls, provides an opportunity to use low cost or even negatively priced electricity alongside their existing heating equipment. This is an attractive proposition. Additional benefi ts such as ease of control, enhanced system boiler effi ciency and future retrofi t options for heat pumps or hydrogen ready gas boilers add further appeal. ◼ phamnews.co.uk/123/30
Why cylinders have a critical part to play
Hot water cylinders have an important role when it comes to maximising the effi ciency of heat pump systems. David Hall from Telford Cylinders explains why they should be considered integral to a successful installation.
Telford off ers a range of cylinders designed to work with heat pumps and other renewable technologies
Air source heat pumps are a key solution for decarbonising homes, and their installation as an alternative to fossil fuel boilers is critical to meeting the UK’s legally binding commitment to achieve net zero by 2050. The adoption of low carbon heating systems is being driven by the government through the Boiler Upgrade Scheme (BUS) which provides £5000 towards the cost of air source heat pump installations in England and Wales, and the ECO4 scheme which provides grants for homes that have never had a central heating system fi tted before.
However, what is often overlooked when installing an air source heat pump heating and hot water system is the important role a hot water cylinder has to play in maximising effi ciencies.
Contrary to popular belief, not all air source heat pumps operate in the same way. The correct specifi cation of a hot water cylinder is therefore essential if the heating and hot water system is to operate at maximum effi ciency. Integral to any central heating system, a hot water cylinder is the gobetween for renewable heating technologies and needs to be given the consideration it deserves to maximise operating effi ciencies and ultimately keep the homeowner happy.
Key considerations
Through a range of hot water cylinder options, air source heat pumps are capable of supplying domestic hot water up to 65°C.
They have the fl exibility to be used as a standalone heat source with a single renewable coil, or as a twin coil option in conjunction with other renewable heating technologies such as solar thermal. So what does the heating engineer need to take into consideration when selecting a hot water storage cylinder for use with an air source heat pump?
David Hall
Sales director at Telford Copper & Stainless Cylinders Ltd.
CUT TO THE CHASE
Most air source heat pumps require a dedicated hot water cylinder Air source heat pump cylinders feature larger coils to maximise energy transfer Managing Legionella is an important consideration when designing low temperature heating systems Air source heat pumps can also be used in with thermal stores and buffer cylinders Heating Coils
To maximise the transfer of renewable energy into the stored water, air source heat pump cylinder coils are larger and have a greater surface area than traditional hot water cylinder coils. Specifi cally designed to work at lower temperatures, coils are available with smooth, ribbed, dimpled or fi nned surfaces.
The specifi cation of the heating coil directly aff ects the recovery time / reheat performance of the hot water cylinder, so comparing the kW and not the surface area of a heating coil is far more accurate.
Minimising heat loss
Introduced in 2017 under the ErP Directive, the effi ciency of an indirect hot water cylinder is determined by standing heat loss. Heat loss is minimised by eff ective insulation, and hot water storage cylinders have to meet at least band ‘C’ heat loss requirements.
All hot water storage cylinders need to display an energy label, and if a package system is supplied, a fi che and a label that provides the combined energy effi ciency rating for the whole system must be provided to the end user.
The positioning of immersion heaters
Domestic immersion heaters are typically rated at 3kW and are used to provide back-up heat. In a single coil cylinder, the immersion needs to be positioned below the coil and in a twin coil cylinder, the immersion needs to be positioned between the coils. This ensures that the diff erent temperature layers are maintained and each heat source is used to maximum benefi t.
Immersion heaters should comply with BS EN 60335-2-73: 1997 or be specifi cally designed for and tested as part of the water heater to which they are fi tted. Managing legionella
Preventing legionella is an important consideration when designing hot water systems, particularly those which operate at lower temperatures than traditional systems.
Many air source heat pumps, including the Clivet Elfo-Energy 2.0 which is supplied as part of a package by Telford Copper & Stainless Cylinders, incorporate an anti-legionella function which automatically heats the cylinder (via the immersion) on a weekly basis to de-sanitise. This negates the need for a hot water boost kit, which not only adds an extra component to the system but also increases energy use.
Installation and maintenance
As air source heat pump heating and hot water systems incorporate unvented hot water cylinders, they must be installed and maintained by a competent person in accordance with Building Regulations Approved Document G3.
These strict safety regulations have been put in place due to the pressurised performance of an unvented cylinder. To assist heating engineers, the Hot Water Association’s ‘Hot Water Storage Cylinder Servicing Guide’ details service checks to be carried out every 12 months.
Smart controls
The use of SMART controls (Self-Monitoring Analysis & Reporting Technology) manage every minute of a home’s heating schedule and can be used to maximise potential energy savings.
Alternatively, an air source heat pump system controller can automatically run the entire heating system with intuitive, wired programmable thermostats or by intelligent remote room sensors.
Multiple heat sources
of direct connections which allow for the integration of multiple heat source / zones to deliver domestic hot water and space heating.
For heating systems where there are diff erent temperature and fl ow-rate requirements (underfl oor heating and radiators), a low loss header can be incorporated to hydraulically separate the individual heating circuits. This ensures a constant temperature supply of water reaches the multiple heating circuits downstream of the lowloss header connection.
Package solutions
As a hot water cylinder forms such an integral part of a heating and hot water system, Telford Copper & Stainless Cylinders have developed a compact air source heat pump, heating and domestic hot water package, with a pre-plumbed, indirect, unvented stainless steel hot water storage cylinder.
The air-to-water air source heat pump package incorporates an external Clivet Elfo-Energy 2.0 monobloc unit which is available in single phase outputs from 5 to 16kW. Utilising Telford’s technical expertise, the complexities of the system are covered from the initial design, right through to the completed installation. This not only makes the design and installation process of the heating and hot water system easier for the heating professional, but it also saves valuable time.
In summary
Historically, the important role a hot water storage cylinder had to play in a traditional heating system was often overlooked. However, with the rapid adoption of renewable heating technologies and the necessity to maximise effi ciencies (now more than ever), the correct specifi cation of a hot water cylinder with this type of heating and hot water system has never been more imperative. ◼ phamnews.co.uk/123/31
Ready for hydrogen when the time comes
Commercial hot water specialist Adveco now produces its range of ADplus and AD condensing gas water heaters, and MD gas boilers, as hydrogen 20% blend ready, without the need for any modifi cations.
Adveco says its current range of high effi ciency gas-fi red condensing water heaters and boilers deliver advanced burner technology and feature titanium stainless steel heat exchangers that ensure optimal operation and longevity. For models with multiple heat exchangers, smart balancing helps reduce operational costs, further extending the life of the appliance, and provides built-in redundancy to ensure there is no downtime for business-critical demands for domestic hot water.
By installing the ADplus, AD and MD, Adveco claims they will continue to operate well into the 2030s, while being prepared to make the switch to hydrogen blending when it becomes more common.
Bill Sinclair, technical director at Adveco, says: “Customers working on commercial projects can continue to commit with peace of mind to gas-fi red water heating applications where connections already exist. With our instantaneous ADplus and semi-instantaneous AD, as well as the MD boiler range, all hydrogen 20% blend ready, they instantly gain an opportunity to embrace more sustainable gas supplies by the end of the decade.” ◼ phamnews.co.uk/123/32
Addressing emissions targets
Aiming to deliver zero on-site emissions, Lochinvar has unveiled a range of high performance electric storage water heaters for commercial and large residential applications.
The Cavalier ECO fl oor standing range comprises seven models, all of which meet the requirements of the EcoDesign (ErP) directive, and can operate at working pressures up to 8 bar, with storage capacities of 173 and 264 litres.
They have been designed to meet growing demand for all-electric hot water solutions that produce zero on-site carbon emissions, in line with the UK’s Net Zero targets.
Each water heater features factory-fi tted multiple immersion elements for rapid hot water production. This ranges from three 3kW elements in the lowest output model (9kW) up to nine Building on its expertise in stainless steel heat transfer technology, Fabdec has created the sub-brand, Excelsior Water Heating.
Stuart Doggrell, head of Excelsior Water Heating, says: “The Excelsior name has a long association with Fabdec so it was a natural fi t to create Excelsior Water Heating by Fabdec. The division has grown serving both domestic and commercial customers, off ering bespoke and niche solutions.”
The brand encompasses direct, indirect, solar, heat pump, slimline, and horizontal water heaters, which are among Fabdec’s standard range of domestic and commercial products. ◼ phamnews.co.uk/123/35
6kW elements powering the highest output (54kW) water heater, which can provide hot water recovery rates from 155 to 930 litres per hour, based on a temperature rise of 50°C.
The immersion elements operate in sequence to provide fast recovery of hot water and better effi ciency, especially during off -peak demand periods. The independent operation of each element provides stand-by in the unlikely event of any individual element failing.
The enamelled steel storage vessels include an integral magnesium anode for cathodic protection to maintain the integrity of the units over longterm operation. They are insulated with 65mm polyurethane foam and encased in an enamelled grey jacket. ◼ phamnews.co.uk/123/34
Stratifi ed heating method
Now featured in the Appendix Q product database, Mixergy’s smart hot water tank only heats what is needed, unlike a conventional cylinder which heats the whole contents. This minimises the primary carbon used to generate a dwelling’s hot water, while maximising the availability of cold water for storing renewably generated energy – from solar PV, for example. This stratifi ed method of heating water is now factored into the SAP Appendix Q database, allowing social landlords (under RdSAP) and new developers (under SAP 2012 and SAP 10) to recognise the full benefi t of using Mixergy in their projects, whether new build or retrofi t.
For more simplifi ed systems using a standalone Mixergy cylinder, the SAP assessor can factor a partial state of charge, rather than standing heat losses at 100% of the heated volume. While this off ers a modest carbon saving itself, the maximum benefi t is achieved when the dwelling uses Mixergy’s solar PV embedded cylinder. ◼ phamnews.co.uk/123/33
Green brand is dedicated to effi ciency
Design, Supply, & Service For Commercial New Build & Refurbishment Projects
There’s more than one way to learn
Many manufacturers in the sector now offer installers the opportunity to learn about new developments online, as well as providing face-to-face product training. We find out what training options are available from Glow-worm and how installers can best ensure they keep up to speed.
Following the launch of the Glow-worm Academy this year, we caught up with Mark Wilkins, the company’s training and technologies director, to discuss some of the biggest training trends from the last 12 months, and look at what might be on the horizon for installers wanting to enhance their product and industry knowledge.
What have been the most popular training courses you’ve seen installers taking advantage of this year and have you seen a rise in online learning?
MW: Our most popular courses have covered a variety of different topics, from Installation & Commissioning, Diagnostics & Fault Finding, to Commissioning a Glow-worm gas appliance, all of which ensure that installers are equipped with the knowledge they need for today and into the future.
PHAM SEPT22 OFTEC:Layout 1 23/08/2022 12:45 Page 1
Mark Wilkins
Glow-worm training and technologies director
Online learning has continued to grow in popularity, with 47% of our installers completing online courses this year. However, we’re also seeing an increase in the number of installers seeking out face-to-face training again, with 57% of all courses delivered this year hosted in person at one of our six Centres of Excellence.
By combining online and in person training, this blended learning approach means installers can complete their modules in the comfort of their own home, while the in-person training provides valuable time hands-on with the products to supplement their theory-based knowledge and skills.
You launched the Glow-worm Academy at the start of the year. Can you talk about the installer benefits of the platform?
MW: We’ve had some great feedback on the Glow-worm Academy. The new online portal has allowed installers to follow a tailored learning journey to develop their technical skills with our heating systems.
With everything moving to one convenient platform via the Academy, it also gives installers access to their certificates, while tracking their progression through the platform. In addition, it offers more on-demand, blended learning and business support tools, so that training can be worked around their schedules as and when convenient, even when on the go.
Following the launch of the Glowworm Academy, we’re already seeing some interesting trends. Courses such as Energy Product Overview and Heat Exchanger Cleaning for Glow-worm boilers being the most popular online courses, while Energy Diagnostics and Fault Finding, and Energy Installation & Commissioning have been the favourites for in-person training. This shows a blended approach to learning is providing installers with a flexible option that minimises the amount of time away from paid work.
Interestingly, as more homeowners look to increase the energy efficiency of their home heating system, we’ve also seen an increase in the number of installers signing up to our range of heating control courses so they are able to support customers.
What is on the horizon for Glowworm training in 2023?
MW: We want to make sure we’re doing everything we can to help installers to ‘Keep Britain Glowing’, and staying up to date with new technologies and theory is part of this.
We’re continuing to invest in our training offering to ensure that installers can access the support that extends beyond product alone and instead looks at wider topics that are affecting our industry.
Looking towards the future, another training area we’re keen to provide support on is the development of future talent – something that will be instrumental to the success of our industry. We are developing our relationship with colleges to support the needs of the future and help to close the skills gap, both technically and by developing business skills.
One such face-to-face session was recently delivered to apprentices at the Hybrid Training Centre in Aintree, Liverpool, an industry accredited training facility supporting apprentices and existing installers. The interactive business awareness session included practical support and advice on marketing, plus top tips on how to successfully build a brand to attract and win new customers. Importantly, the session also covered mental health and wellbeing, equipping apprentices with the knowledge and information they can implement in their own businesses.
Find out more
For more information on the Glowworm Academy, please enter the online reader link below in your browser:
◼ phamnews.co.uk/123/37
The changing market calls for new skills
Low carbon and low temperature heat systems are a growing market, which means the installer base, comprising largely gas and oil experts, will need to upskill to meet the demands of the future, says Martyn Bridges from Worcester Bosch.
For almost all of our 60 years in existence, Worcester Bosch has been training installers, and as we go forward we will continue to invest in future technologies and upskill the next generation of young professionals. Training is at the forefront of our brand’s ambitions, and with new technologies up and coming, there is a need for new training and to upskill the next generation, which is a huge priority for us.
Training within the industry, historically, was always on gas and oil-fired boilers. However in recent years with the net zero target fast approaching, the emphasis on and interest in low carbon and zero carbon technologies has increased dramatically.
Like other manufacturers, we introduced new heat pump training courses in 2022, along with complementary courses such as low temperature heating design.
Martyn Bridges
Director of technical services at Worcester Bosch
We have also seen an increase in training for heat interface units, typically used in high density housing, such as tower blocks and apartments. The government is aiming to see around 20% of all the housing stock heated by heat interface units and district heat networks by 2050. A very ambitious target indeed.
Unsurprisingly, one of the biggest demands we’ve had for training is for hybrid heat pump courses, a relatively new technology that is becoming more and more accessible to homeowners. This type of heating system combines the best of both worlds where we have a heat pump heating the home for around 80% of the time and we have a boiler as back up support for the colder periods and also to continue to generate domestic hot water, should it be one of the 17 million combi boilers installed.
Hydrogen hope
In addition to heat pumps, we get a significant amount of interest for hydrogen boiler training, a product not yet available on the market. Training on hydrogen appliances is mostly theory based and often conducted via distance learning rather than face to face.
As it stands, the government is still in consultation on the future of hydrogen in the UK heating mix, and there is no market for it, so training in this area is more interesting than necessary.
Alongside an appetite for hydrogen, we have also seen an increase in demand for controls training. With the cost of living crisis hitting everybody we believe installers are getting increased inquiries from homeowners on how to run their heating system more efficiently. And of course, controls, particularly modulating type controls, are one of the major ways to reduce energy consumption at a low cost.
In summary, the thirst for training is there and very much of a low carbon nature. We have had a packed diary for the entirety of 2022 and will hope to see no less than this in 2023. ◼ phamnews.co.uk/123/38
Sector must become a broad church
With increasing numbers retiring and too few new recruits coming through, it’s past time to broaden the male dominated installer base and bring on more people who don’t fit the stereotype, says Mark Krull from LCL Awards.
The skilled trades workforce, including heating engineers, plumbers and electricians, is made up of 99% men, with women and other groups vastly underrepresented. Yet the workforce is suffering from a critical skills shortage, with more people retiring than training. We need a new approach to encourage people from all walks of life to enter this thriving sector – something that starts in the training centre.
The BSE sector has so much to offer but it has not been especially welcoming to women. We’ve had conversations with female trainees who have experienced sexist comments in the classroom passed off as harmless ‘banter’. Training centres provide a first impression of the sector as a whole, and comments like this do real harm.
To move our industry forward we need input from a wide variety of people. We must ensure that our training centres reflect modern society and values, something that will then filter up to workplaces and ultimately change the perception of the skilled trades as a career only suitable for certain demographics.
We believe that training centres should be welcoming environments that promote respectful behaviour and set a precedent for the workplace. That’s why we worked with Hattie Hasan to develop our award-winning Inclusivity Charter. Hattie is the founder of the all-female plumbing business, Stopcocks Women Plumbers, and recently received an MBE for her services to women in the plumbing and heating industry.
The charter encourages our centres to review where they are in terms of inclusivity and take steps towards making their facilities more accessible - from not tolerating offensive language, to developing courses which can be delivered online and/or in the evening and at weekends, providing training opportunities to parents and people re-training around the day job.
Inclusive training
Hattie explains why creating an inclusive environment at this early stage is the best foundation for change: “Training is the first step in most people’s careers, so getting this bit right in terms of ensuring people feel they can move into a sector that might not be considered ‘the norm’ is crucial.
“Having experienced firsthand sexism and ignorance when it comes to being a female plumber, making a difference at this grassroots level should have a real impact. If women and other under-represented groups have a good experience in the training centre, they will start their careers with more confidence. An inclusive environment attracts learners from different backgrounds and helps to dispel myths that trainees may have too.”
Inclusive training benefits everyone – trainees, employees and the wider industry. For our centres, apart from being the right thing to do, attracting more people is good for business. There are also benefits for staff; workplaces where well-being is valued tend to have better staff retention and greater productivity.
We need more people if we are going to meet the demand presented by a low carbon future. Skills gaps are rapidly evolving with the development of new technologies and techniques. Ultimately, we can only achieve the numbers, variety and skills that we need by providing equal opportunities for everyone.
The last two points of the Charter summarise these aims: • Our ambition is to help as many people as possible access the building services engineering sector, to improve lives, improve the sector and combat skills shortages. • We believe that inclusion creates an environment where everyone is valued, feels valued and is therefore able to achieve their highest potential. ◼ phamnews.co.uk/123/39
Time to adapt your skills
With the right training and assessments, oil heating technicians can help lead the way to decarbonistaion, says Malcolm Farrow from OFTEC.
Signifi cant changes are coming down the track for the off -grid sector and the government’s commitment to deliver low carbon heating cannot be ignored. But while the focus is often on the technological solutions, the vital role of installers must not be overlooked. The industry is at an important crossroads but, through training and diversifi cation, technicians have a real opportunity to be front and centre of the move to greener heating.
After years of uncertainty, the government set out its roadmap for the off -grid sector in its Heat and Buildings Strategy last year. It proposed that, from 2026, replacement fossil fuel oil boilers should no longer be installed in homes and small commercial premises. The same applies to larger commercial buildings from 2024. This means that once an existing oil heating system breaks down, in most cases, dependent on a measure of ‘reasonably practicality’ which hasn’t been defi ned, a heat pump will need to be installed.
Delivering training to the installer and technician base has always been important to keep up with evolving technology and new legislation, but it’s going to be even more so over the coming years, given the scale of the changes on the horizon. If the government’s proposals go ahead, a huge number of heat pumps will need to be
Malcolm Farrow
OFTEC head of public affairs
installed. The challenge is that, at the moment, even with relatively low numbers, there is already a shortage of technicians. This is particularly true in more rural parts of the country where demand is lower.
Maintaining standards
We can’t ignore that heat pumps will have a central role to play off -grid, which is why OFTEC has launched a new suite of training courses to help technicians diversify and futureproof their business. It also ensures high standards are maintained and work in the home is compliant and safe.
The course and assessment packages have been developed with industry experts alongside MCS, including Grant UK, Panasonic, Vaillant, Nationwide Training, Cert-Ain Certifi cation and ERS Certifi cation. The programme already covers air source heat pump installation, commissioning, and servicing, and design of heat pump systems. A further course focussed on ground source heat pump installation, commissioning and servicing will be available shortly.
Once completed, technicians can apply for MCS certifi cation to install heat pumps through government schemes such as the Home Upgrade Grant or Boiler Upgrade Scheme. They will also be able to self-certify their own installations as compliant with Building Regulations.
The courses have been designed to off er maximum fl exibility through incorporating theoretical and practical assessment across diff erent heat pump products. They are being delivered through OFTEC’s existing network of training providers and most heating technicians should already hold the necessary skills and experience to meet the course pre-requisites.
At OFTEC we recognise the role of heat pumps in delivering net zero and continues to support the technology as more technicians enrol on our courses. However, we’re pragmatic and understand that not every property is suitable for a heat pump. This is particularly true off -grid where homes are older with low energy effi ciency and may require extensive renovations, such as additional insulation, new radiators and a hot water tank, for the technology to work eff ectively.
Low carbon alternative
That’s why OFTEC, alongside industry partners, has been demonstrating the renewable liquid fuel hydrotreated vegetable oil (HVO) in nearly 150 properties over the past two years. The existing oil heating systems, which ran on kerosene, were converted in a few hours at an estimated cost of £500. The project has been a huge success with each property immediately reducing its emissions by nearly 90% upon switching.
HVO is also very adaptable and has been used in a range of buildings from churches, schools to pubs which were unsuited to a heat pump. The fuel is sustainably sourced from waste, without impacting deforestation or land use for food or feed crop, and we’ve been engaging with BEIS to secure support through a pricing mechanism to lower the cost.
The benefi t of HVO is there are already over 10,000 OFTEC technicians working with homes on oil heating. Again, training will be central to widescale HVO adoption and we have created a HVO handbook and are close to fi nalising a major update to our technical books. Our extensive list of training centres across the country, in combination with our inspectors who ensure high standards are maintained, means we can deliver the transition effi ciently, safely and at speed with minimal disruption to consumers.
The reality is there is no one size fi ts all solution to decarbonise off -grid homes. Through a technology neutral approach which supports training for both heat pumps and HVO conversions, OFTEC can equip technicians with the skills to install a full range of non-gas technologies. Not only does this mean that technicians can lead the way in delivering a greener future, but diversifi cation helps to protect installers in a changing landscape.
Consumers are understandably confused about what they need to do and what low carbon solution is most practical for their home. OFTEC technicians, equipped with the full scope of skills, can provide impartial advice to their customers while upholding high standards of safety in the home.
The direction of travel towards low carbon heating is clear and we believe our industry should be at the forefront, rather than being left behind the curve. ◼ phamnews.co.uk/123/40
Providing the gas qualifi cations you need
Based in Hoyland, Barnsley, just one mile from Junction 36 of the M1 motorway, ECS Gas Training Ltd specialises in upskilling plumbers who need their gas qualifi cations.
“Due to our very competitive prices, and the excellent service that we provide, our customers come from as far afi eld as London,”says MD Graham Hawkes. “We have extremely helpful, competent staff who make our customers feel welcome, and they actually enjoy our relaxed atmosphere.”
ECS has now increased its training services to include Air Source Heat Pumps, Essential Electrics, UVHW, WRAS, Part L, as well as all Domestic Gas ACS Categories.
Centre manager Chloe Andrews states: “We are always busy here at ECS so the days pass quickly, and I meet lots of people, even though we restrict class numbers to a maximum of six. We can also off er accommodation at a local pub, which goes down really well with the engineers.” ◼ phamnews.co.uk/123/41
Rewarding success
For the fi rst time since the restrictions of the pandemic, Steve Willis Training has been able to reintroduce its Graduation Ceremony for apprentices. The event was attended by friends, family and employers as well as Mimms Davies, Minister for Social Mobility, Youth and Progression, and local councillor Stephen Hillier.
The training provider says that this was a culmination of a successful couple of years for its apprenticeship team, following on from being awarded Excellence in End Point Assessment delivery by City & Guilds and achieving a 92.5% pass rate for its gas apprentices.
With a combination of over 400 gas and electrical apprentices currently on programme supported by 305 employers, the team are getting ready to start recruiting for future apprentices early next year.
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Centre for latest in heat pumps
A new training centre and showroom has been opened by Stiebel Eltron at its UK headquarters in Bromborough, Wirral. The 280m2 training facility has the capacity to accommodate up to 16 trainees at any one time and has been fitted with the company’s latest heat pumps.
Visitors will be able to benefit from hands-on experience on a range of ground and air source heat pumps, available in different models to meet a range of needs including commercial settings, houses, or flats.
As well as training installers, Stiebel Eltron says it is committed to providing them with a package of post-training which ensures that technical support is available to them throughout the duration of any installation or project, not just at the point of purchase.
MD Mark McManus comments: “It’s our support package which really sets us apart. Not only do we ensure all trainees are equipped with the expertise and knowledge to excel in the industry, we make sure everyone on our courses receives technical support and advice which goes well beyond their training so they can meet any challenge in their line of work head-on.” ◼ phamnews.co.uk/123/43
Hydrogen awareness courses
Kiwa Energy provides training in Hydrogen Awareness for installers, Commercial Hydrogen training, and also an IGEM-approved course for professionals working in the gas supply and appliance industries.
Courses include the one-day ‘Hydrogen and the Natural Gas Network’ CPD course, which covers the main aspects of hydrogen as a utility, and why this is seen as a potential route to meeting net zero carbon emissions by 2050.
Kiwa UK has the only live hydrogen manufacturing facility in the UK and is able to provide a tour of the production facility as part of its training.
Also available is an online hydrogen awareness course – a two hour interactive webinar addressing key themes and the potential role of hydrogen in the future of the gas network. ◼ phamnews.co.uk/123/44 PHAM DECJAN21 EG TRAINING:Layout 1 23/11/2021 13:40 Page 1
Catering for all experience levels
With the commitment to providing high levels of service and after-care to customers of its commercial heating solutions, Hamworthy Heating offers a wide range of courses tailored to meet the specific needs of the individual.
Training is available to cover all levels of experience, from beginners through to seasoned engineers and specifiers, and cover all Hamworthy Heating product categories, including boilers, hot water heaters and air source heat pumps. The training centres are also accredited for BPEC and City & Guilds courses.
For its latest product release – Tyneham Heat Pumps – Hamworthy’s experts will explain how heat pumps work and provide hands-on product training, guiding participants through the servicing of products to ensure they are operating at their maximum efficiencies. With heat pumps still a relatively new technology, these courses are suitable for building managers, installers and specifiers.
Hamworthy is also accredited with CIBSE to deliver approved Continuing Professional Development (CPD) courses, which are available on request.
Training is provided onsite, online or at one of the company’s dedicated training centres and is provided by engineers with years of product knowledge and industry experience. ◼ phamnews.co.uk/123/45
Relaxed training environment
The Gas and Electrical Academy at Nescot is a specialist training and assessment centre at Nescot college in Ewell, near Epsom. It has been delivering qualifications for more than 20 years.
The Academy offers domestic or commercial gas, electrical and LPG tuition. Courses include Beginners Domestic Gas (MLP), ACS Reassessment, Unvented Cylinder, LPG, Water Regulations, Commercial Catering, Commercial Gas, 18th Edition, Electrical Testing and Reinspection.
Delegates can expect a relaxed, friendly training environment along with free, secure parking and easy access by train, and competitive prices with no VAT to pay. All the assessors are qualified engineers.
The Academy says it can work with groups and organisations to tailor sessions for individual times, qualifications packages and prices. ◼ phamnews.co.uk/123/46
Learning about hybrid systems
In tandem with the unveiling of its latest product launch, the E-Tec Hybrid, Alpha has announced that it will be rolling out training in packaged heat pump solutions.
The new one-day hybrid course is free and includes: key features of the Alpha hybrid solution; considerations when fitting a heat pump; system design; positioning; and installation.
Currently available in Wrotham Heath, Kent, and Barnsley, South Yorkshire, this training will be rolled out to further locations in 2023 to ensure that training is accessible to everyone. In the meantime, those who cannot get to Kent or Yorkshire can watch an on-demand introduction to the E-Tec Hybrid from the company’s renewable product manager, Daniel Wilden.
Alongside this training, Alpha will continue to run commercial one-day boiler courses which run out of Wrotham Heath and Barnsley, as well as domestic boiler courses held at various locations across the country.
Available to Gas Safe registered engineers, there is no charge to attend, and refreshments and lunch are provided. ◼ phamnews.co.uk/123/47
Effi ciency upgrades will pay off in the long run
With the cost of living on the rise, customers are generally not looking to spend money they don’t have to, but the spiralling price of energy means holding back on making effi ciency upgrades could be a false economy. Martin Wilson from Resideo looks at some of the simple improvements customers can make for big savings in the long term.
With everyone tightening their belts, it’s understandable that heating engineers may be cautious when talking to customers about additional products – even if they will help save money in the long run.
Therefore, when talking to a customer with a tight budget, a simple check of the existing heating control during a boiler service or upgrade could be a good place to start. Take a few minutes to check that a customer’s thermostat is set correctly – and that they know how to use it eff ectively. This will really add value to the visit.
For instance, a common misconception still seems to be that turning the thermostat way up will warm a home more quickly. In fact, this inadvertently burns through more fuel, working the boiler harder to reach the higher temperature and not heating the home any faster.
There are also simple things that you can advise homeowners to do to make those extra savings. An example of this is turning the thermostat down by one degree, which could save them around 10% on their energy bills.
Match making
It pays to identify the upgrade most suited to your customer. Millions of properties across the UK have inadequate controls for their heating system. The result is that the boiler is either on or off , continuing to pump out heat long after the room reaches the required temperature.
Martin Wilson
Sales director at Resideo
BY NUMBERS
43%
in a survey of 1000 people, 43% would pay for the latest heating controls if they helped save money in the long-term
£181
amount of money per year that can be saved by swapping a mechanical thermostat for a digital, load compensating one
10%
potential savings on energy bills by turning the thermostat down by 1°C
£327
Honeywell Home TR6-HW wireless heating and hot water thermostat
Potential annual savings by simply replacing manual radiator valves with TRVs
Of course, individual energy savings are dependent upon existing controls and the nature of the building itself, but where people can or need to change their boiler, controls or even the radiator valves, a range of options can be suggested to suit diff ering budgets.
What is reassuring is that Resideo’s recent survey of 1000 UK homeowners found that 43% would be willing to spend money on the latest heating controls if it meant they could save money in the long term.
To give an idea of the savings available, Resideo has worked with BEAMA to typify how switching controls can help, based on an older mechanical thermostat being in place.
For instance, based on current energy prices, simply swapping an old mechanical thermostat for a digital, load compensating thermostat can save up to £181 per year. Go further and upgrade a mechanical stat to an OpenTherm (load compensating) thermostat, such as the Honeywell Home T6R or T4R, and this could see it increase to £218 a year.
Radiator check
Customers tend to see the boiler as the heat provider and can easily overlook the impact radiator valves have on the heating system and its effi ciency. However, swapping manual radiator valves for thermostatic radiator valves (TRVs) ensures that each room is maintained at a comfortable temperature to help avoid any overheating in those rooms that will be a waste of energy.
In addition, the latest changes to Part L of the Building Regulations in England will mean that when a boiler is replaced, thermostatic room controls must be provided in every room. The most straightforward way to meet this new requirement is by installing
The Evohome wireless heating and hot water WiFi connected thermostat works with wireless radiator controllers for greater user control
a room thermostat in one room, and TRVs in all other rooms.
Simply upgrading your customer’s manual radiator valves for TRVs could also save them £327 a year, so it is well worth mentioning as an investment for the future.
Big changes
For those customers looking to completely upgrade their heating controls, whereby manual radiator valves and a mechanical thermostat is replaced with electronic TRVs and installing a modulating, OpenTherm zoning thermostat solution, such as the Honeywell Home T6R or evohome, customers could be looking at savings of over £585 a year.
When checking the TRVs it’s also important to check the heating system is balanced correctly, as an unbalanced system can cause ineffi ciencies such as over- or under-heated rooms. A balanced system will ensure all radiators in a property receive the correct fl ow of hot water and even heat distribution across the property.
This can be a lengthy and sometimes diffi cult process, as all radiators need to be opened up and balanced by adjusting the lockshields. However, with Honeywell Home TRVs, an adjustable insert is fi tted as standard and can be used to balance the system with the added advantage that the TRV can be closed and re-opened without aff ecting its setting. Used in conjunction with the Honeywell Home TRV balancing app, the process is simple, and you only need to balance once.
Industry campaign
To support installers in providing advice and guidance to their customers, Resideo has launched a new campaign to highlight the practical recommendations installers can make to help mitigate rising energy bills now and into the future.
The campaign – which uses the tagline ‘Every crisis needs a hero – installers, this is your time’ – will highlight the everyday heroism of the installer community, demonstrating the true value of the work installers do and the impact they can have, particularly as the energy crisis looms. ◼ phamnews.co.uk/123/49
Sure-fire ways to make systems more efficient
With homeowners experiencing an unprecedented rise in their energy bills, Remi Volpe at Drayton discusses the crucial role of simple and smart changes that can be made to heating systems now to help minimise energy costs, increase efficiency and reduce emissions.
With the updates to Part L of the Building Regulations expected soon, which are set to boost the efficiency of gas systems, and with over 83% of the UK population relying on gas boilers to heat their homes, there’s no better time for installers to start encouraging homeowners to think about how they can improve their heating systems.
One of the most significant changes due to be introduced by the updates is to help prepare homes for lower flow temperature technologies, by adjusting how a new or full system replacement must be commissioned. Under the new updates, any new or full system replacement gas combi boiler must operate at a maximum flow temperature of 55°C, which is much lower compared to the current maximum of 80°C.
While this helps to improve efficiency and reduce carbon emissions, it also prepares homes for the move to renewable heat sources, such as heat pumps, which operate at lower flow temperatures of between 35 and 45°C.
Savings potential
With recent research undertaken by the Heating and Hotwater Industry Council (HHIC) finding that households can save up to 8% on their gas bills just by lowering the flow temperature, this is a simple change that installers can make that will not only instantly start saving money for the homeowner, but will also work towards increasing the efficiency of a gas heating system.
The type of heating control that is installed with a gas boiler can also make a huge difference when it comes to efficiency. In 2018, Boiler Plus set out the requirement for time and temperature controls to be fitted with any combi boiler installation, as well as the need to feature one of four additional measures: load compensation, weather compensation, a smart control, or a flue gas recovery unit.
There is also the expectation that this summer it will be expanded to include conventional boiler installations, meaning that every gas boiler will require adequate heating controls to be installed too. With this in mind, heating engineers will need to carefully consider which of the additional measures will be the best fit for their customer and how to achieve this.
Compensation features
This is where smart controls have a real role to play, for the homeowner as well as the installer. For example, many smart controls on the market today offer load and weather compensation tools – such as Wiser’s Eco Mode. This combines
With smart apps, customers are able to monitor their energy usage in detail and see their consumption in real time
Remi Volpe
MD of Drayton Controls
Smart TRVs make it easier than ever for installers to provide their customers with zoned heating and greater control
WAYS TO SAVE
Lowering the system flow temperature down to 55°C can save 6-8% on gas bills Load and weather compensation features are available on many smart controls Remote access to a heating control through an app makes it convenient to stop the heating when no-one's home
Smart radiator thermostats make it easier for installers to give their customers multi-zoned systems, while giving the end user more control
weather compensation and optimum stop to adapt heating schedules according to changing weather conditions. This means that installers can easily meet not just one of the additional measures, but multiple measures mandated by Boiler Plus to offer enhanced efficiency improvements.
Another key selling feature of a smart heating control is the ability to be able to manage the heating remotely. Many homeowners don’t have regular schedules, so smart controls that offer a fully personalised heating system that can be changed from anywhere via an app on their phone is a large draw to many different types of customer – from commuters through to busy families and multi-generational homes.
Convenience matters
Whilst having to alter settings on a more traditional programmable thermostat can be an inconvenience that homeowners would rather not worry about, having a smart control makes it easier than ever to adjust heating schedules and ensure energy isn’t wasted by heating an empty house. Research shows that by upgrading to a smart programmable thermostat, such as Wiser, homeowners can save 18% on their energy costs.
Over the past few years, thanks to the advent of increased home working, homeowners have also become more conscious about the ways in which they heat their homes, especially when it comes to heating empty rooms, which is where multizoning comes in. Previously, heating engineers would have used a low loss header system to create different zones. However smart heating controls and smart radiator thermostats have made this easier than ever to achieve.
Some smart heating controls, such as Wiser, can also feature smart radiator thermostats, helping to achieve room-to-room control. This type of heating control means that homeowners can control the time and temperature schedules for each individual room rather than the house as a whole, saving energy by not heating empty rooms. Recent research carried out by BEAMA and BRE show that people can reduce their energy usage by 19% by preventing unnecessary overheating in rooms.
On display
As many homeowners are now struggling with the increase in energy costs, being able to see where energy is being used is a huge bonus. Another feature that many smart controls offer is a display of energy consumption in real time, allowing homeowners to see exactly how much energy is being used, enabling them to make changes if required. This can prove to be a useful tool, as turning the heating down by 1°C can reduce a homeowner’s annual energy bill by £80 and reduce carbon dioxide emissions by 320kg. Wiser offers this type of overview in Insights, which can be enhanced by integrating data from a smart heating system with the Wiser Home app to access Insights+, where homeowners can see their energy savings in monetary values.
In a time where a large focus is placed on not only helping to reduce homeowner’s energy costs, but also striving to reach our carbon neutral targets, these energy saving features can go a long way in helping the boiler to work smarter, resulting in reduced emissions and lower energy bills. By being clued up on the latest smart heating controls and the features they offer, installers can play a crucial role in helping homeowners across the country make their energy bills more manageable today. ◼ phamnews.co.uk/123/50
Solutions to help save on energy costs
Available from Alpha is a range of controls to enable users to programme their heating systems to suit their lifestyle and also reduce their energy costs.
With products like Alpha Connect, users can control their heating from anywhere thanks to a wireless thermostat which links to Wi-Fi control via a mobile device. These controls are compatible with all of Alpha’s combi boiler models, with the Alpha Connect app available on iOS and Android to help with remote heating adjustments.
Another option is the Alpha Climatic control. Available in both wired and wireless versions, this load compensating remote control has been specifi cally designed to maximise boiler and system effi ciency when working with the company’s E-Tec range.
Updated app and cashback
With the aim of catering for the needs of heating engineers and installers, tado° has unveiled new updates to its Professional Installer App. The app now contains interactive wiring diagrams, fault code libraries for diagnosing potential issues, system checks for troubleshooting, and a customer handover feature.
The company says that the updated app will allow installers to handle all of their customer needs during installation, and better diagnose any potential issues or wiring setups.
With higher energy prices, tado° now predicts that its devices will save an annual £294 per year, or 22% on annual costs, meaning that homes should fi nd a return on their investment within just four months.
Recent additions to the range include the Black Edition Smart Thermostat (pictured), while, in response to feedback from installers, the controls manufacturer also recently brought back its OpenTherm compatible model to the UK market.
More rewards
The company has also launched a cashback scheme with participating retailers, where installers will be able to receive up to £20 per installation of tado° products. ◼ phamnews.co.uk/123/53
The multi-channel programmer features an integrated thermostat to transfer data between the boiler and controller. This enables the controls to measure and maintain room temperature while continuously adjusting the CH fl ow temperature to ensure the least amount of energy is used.
Sophisticated controls are also at the heart of Alpha’s new E-Tec Hybrid packaged heat pump solution. The system’s Smartech controls monitor energy prices alongside the outdoor temperature to choose the most effi cient pump/boiler combination to provide high effi ciency heating and hot water, as and when it is needed. ◼ phamnews.co.uk/123/51
TRV guarantee gets high fi ve treatment
A fi ve-year warranty is now available on Altecnic’s Ecocal Thermostatic Radiator Valves and Ecocal twin packs. The Ecocal TRV uses a liquid fi lled element to automatically control the opening of the valve to maintain the desired ambient temperature of the room.
The brass TRVs with a chrome
Smart controls now come in anthracite grey option
With consumer demand for decorative and cast iron radiators continuing to increase, Drayton has expanded its range of Wiser heating controls to include a room thermostat and TRV in anthracite grey.
As well as enabling heating to be adjusted remotely from anywhere in the world, Wiser also features a number of energy-saving Smart Modes. This includes Away Mode, which acts as a quick and easy way to turn their whole heating system off with just the tap of a button, and Eco Mode, which combines optimum stop and weather compensation to learn about the thermal properties of a dwelling, allowing Wiser to know when to turn off the heating early to save energy, whilst still delivering the desired room temperature and comfort levels.
The new Wiser Room Thermostat and Radiator Thermostat in anthracite are now available to purchase in selected merchants, including the Smart Thermostat Shop. ◼ phamnews.co.uk/123/52
plated fi nish are particularly suitable for use in conventional twin pipe heating systems where the level of temperature control needs to be more accurate than is available through a manually operated valve.
Supported by an ‘I-rated’ TELL (thermostatic effi ciency labelling) classifi cation, the Ecocal fulfi ls the requirements which are in line with EN 215 for energy effi ciency.
The fi ve-year warranty covers the Ecocal thermostatic control heads and the Ecocal twin packs, which consist of the control head, body and lockshield valve. ◼ phamnews.co.uk/123/54
Take control of your rising costs with ESi
Our full range of high-quality and reliable controls and accessories are simple-to-use and easy-to-fit. They are value for money, meaning you can take control of your costs, and your customer’s rising energy prices with the latest technology.
• Save up to 15% on energy bills • OpenTherm technology • Easy-to-use app • Series 6 controllable via Alexa • Simple to set up and use controls • Boiler Plus compliant • High-quality but cost effective
