FC&A November 2013 Supplement by Red Hut Media Ltd

Supplement

HVAC/HVP

November 2013 www.fca-magazine.com

Ultimate system design. Maximum efﬁciency. Worry-free management. Discover better communal heating with Evinox.

Expert communal heating and billing. Your choice of communal heating and hot water system is a major decision. Decisions made now stay with you for the lifetime of the building. You want a cost-effective system design that will meet building regulations. Technology that’s sustainable and fuel-efﬁcient. Service and support that’s reliable. And metering, billing and management that’s simple, accurate and hassle-free. Working with best-of-breed manufacturers, only Evinox combines the expertise and independence to deliver lifetime communal heating packages for any project brief. Discover better multi-occupancy heating with Evinox. To see how we can help, call +44 (0) 1372 722277

Integrated heating intelligence. www.evinox.co.uk Online Enquiry 119

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Mixed Media Information Barham Court, Teston, Maidstone, Kent, ME18 5BZ Tel: 01622 232702, Fax: 01622 320020 www.fca-magazine.com www.mixedmediainfo.com

Editor Hannah Frackiewicz hannah@mixedmediainfo.com 01622 232702 Managing Director Sam Ball sam@mixedmediainfo.com 01622 232702 Publication Manager Steve Gull steve@mixedmediainfo.com Account Executive Tom Murray-Scott tom@mixedmediainfo.com

Welcome

...to our HVAC/HVP special

n this month’s supplement, FC&A showcases solutions from all aspects of the HVAC/HVP sector. From natural ventilation systems through to decorative radiators and air curtains, this dedicated platform is tailored to bring you the latest products on the market, designed to make your buildings even more energy efficient and therefore cost effective. In the communal heating sector, Evinox discusses the importance of providing advanced energy billing and reveals that a flexible approach can be taken with solutions such as pre-payment systems. Meanwhile, underfloor heating specialist Speedheat uncovers how a bespoke solar panel solution was installed to provide heat for a 5-bedroom residential property. For more information on any of our contributors or if you wish to comment on a certain issue concerning this product sector, then please do not hesitate to get in touch at the usual address.

Hannah Frackiewicz

Studio Manager Chris Lilly chris@mixedmediainfo.com

Hannah Frackiewicz Editor, Future Constructor & Architect

Artworker/Sub-editor Ben Bridgeman ben@mixedmediainfo.com

Contents

Accounts Simone Jones simone@mixedmediainfo.com

Maintaining healthy buildings:

Flexible heating management:

Quality finish:

Terms and Conditons:

Contributions are invited and when not accepted will be returned only if accompanied by a fully stamped and return addressed envelope. No responsibility will be taken for drawings, photographs or literary contributions during transmission or in the editors hands. In the absence of an agreement the copyright of all contributions, literary, photographics or artistic belongs to Mixed Media Information Ltd. The Publisher accepts no responsibility in respect of advertisements appearing in the magazine and the opinions expressed in editorial material or otherwise do not necessarily represent the view of the publisher. The Publisher does not accept any liability of any loss arising from the late appearance or non publication of any advertisement.

Front cover:

RENSON offers solutions for sun protection and energy efficient natural ventilation all year round. When designing a communal heating system, energy metering, monitoring and billing should be a key consideration from the outset, as Evinox explains.

JIS Europe has introduced a number of new towel rails to its stylish portfolio, designed to complement contemporary or traditional interiors.

10 Reduced thermal transfer:

Mike Verney, Sales Director at JS Air Curtains, provides an overview of things to consider when specifying air curtains.

12 Looking to the future:

Mike Nankivell of Space Airconditioning considers the increased emphasis on energy efficiency in cooling equipment.

14 Solar powers primary heat source:

Speedheat unveils the first UK home – a converted Victorian village school – to run the company’s electrical floor heating by solar power.

16 Decorative touch: A total of 95 Jaga Maxi LST radiators were installed throughout the Parker VC building – a collaborative project between Help for Heroes, Hulley & Kirkwood, Capita and Interserve. See pg 18.

Stelrad strengthens its portfolio of decorative radiators and towel rails, adding warmth to any contemporary decor.

18 Comfort of heroes:

Systems from Jaga are heating state-of-the-art rehabilitation facilities and adaptive accommodation built by Help for Heroes.

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HVAC/HVP

Natural ventilation for healthy buildings Over the last few decades it has been clear that the history of a healthy and energy-efficient building, avoiding overheating in summer and ensuring a good air quality all year round, cannot be achieved by simply installing air conditioning.

Images: Above right: The Camargue and Algarve terrace coverings combine an aluminium structure with a roof, made of rotatable blades Above: Acoustic louvres and Linius blades combine a high physical free area with excellent sound reduction

spaces. High-performance window ventilators, louvres or the Linius continuous louvre system allows you to ventilate your building without any disturbing influence from outside noises. The Invisivent EVO AK is a selfregulating thermally broken flap ventilator. Thanks to the installation above the window frame, this vent is almost invisible from the outside when designed with a stepped head. From the inside you only see the internal tip lever. It offers a maximum airflow of 15.9 l/s/m at 2Pa and a sound reduction in open position up to 48dB. The acoustic louvres and Linius blades consist of extruded aluminium sections with an inorganic mineral wool core (not flammable) and a perforated back. They combine a high physical free area with excellent sound reduction. Today, RENSON offers a complete set of louvre panels and acoustic Linius solutions with noise insulation Rw (C;Ctr) ranging from 6 to 17dB. The Fixscreen 150EVO with its ingenious zip system is a truly windresistant and insect proof screen in every position. The incorporation of a patented waterproof electrical connection (Connect & Go) allows the fabric roller to be installed and removed very easily. No more problems with electrical cables when securing the cassette or replacing the fabric or motor. Furthermore, the cable slot in the side channels allows the electrical cable to be concealed quickly and easily. But there is more to say. Besides the current Softline box design for its windresistant screens, RENSON has come up with a new sleek Square design in response to the strong market demand. The discreet bottom rail disappears

into the box: completely up to a height of 2700mm and partially up to a height of 6000mm. This Fixscreen 150EVO is suitable for all surfaces up to 22m², for both domestic and commercial buildings – new build or renovation. The Camargue and Algarve terrace coverings combine an aluminium structure with a roof, made of rotatable blades. In closed position the roof is really watertight. The blades are designed in such a way that the water is drained sideways. This water drainage also operates when the blades are opened once it has stopped raining. This ensures that the furniture underneath remains protected. These terrace coverings can be equipped with lights, heating elements and flat panel speakers. By incorporating wind-resistant screens, glass sliding doors or sliding panels, they become extra outdoor spaces that offer protection against sun, wind and rain.

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ENSON aims to create a healthy, comfortable and energy efficient indoor climate using natural ventilation and sun protection. Natural ventilation maintains the good air quality, while the external sun protection controls the solar gains all year round, creating healthy

* info@rensonuk.net

( 01622 754123

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HVAC/HVP

Flexible management with communal heating A communal heating system provides heating and hot water to a number of dwellings from a common source or Energy Centre. It may vary in size quite considerably and comprise for example, a system heating a block of apartments or on a larger scale a system heating many individual homes and possibly other commercial buildings.

he heat interface units (HIU) contained in each dwelling convert the heat generated by the Energy Centre into independent, fast recovery hot water and high efficiency heating for each residence. This removes the requirement for individual boilers and a gas supply in each home. The use of a communal Energy Centre reduces the carbon foot print of the building(s) and allows the integration of renewable heat sources,

such as solar, air or ground source heat pumps or CHP, and can also help achieve SAP ratings. This type of heating system provides end users with exactly the same autonomy as if they had their own boiler and tank and just as with their own independent heat source they pay for only the energy they use. The heat interface units in each dwelling incorporate an energy meter, which accurately monitors and records the

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energy used to provide heating and hot water. There is also no requirement for a flue, gas supply or additional room ventilation in each dwelling, making installation simpler, with easy access for servicing and minimal maintenance requirements. When designing a communal heating system, energy metering, monitoring and billing should be a key consideration from the outset to ensure the best solution is provided for the residents and the building owner or operator.

Advanced billing solutions When deciding which type of billing system is most suited to a scheme, flexibility and ease of use should be taken into consideration. On the whole, modern schemes feature the ability to record the energy consumption accurately and to download this information either using a BUS network installed in the system or GPRS communication. This data is used to provide the end user with a fully itemised energy bill which can either be paid for on account or through various pre-payment options. Evinox offers a billing system that allows you to make the decision of prepayment or credit billing after equipment

HVAC/HVP providing maximum flexibility. With most modern housing schemes being mixed use, the ability to operate a part Credit Billing and part Pre-Payment system on the same scheme is extremely desirable and providing a future proof solution is a key advantage of the Evinox system, as it can be adapted to different tenant occupations. The ability to make changes remotely provides the ultimate in simplicity and flexibility for the building operator. The switch to PaySmart pre-payment is done remotely and does not involve any inconvenience to the tenant, does not require the installation of any additional equipment and can be done instantly through the Modusat control software.

Pre-payment communal heating

Left: Myatts Field Communal Heating Development Above: PaySmart Payment Process 2013 Below: Evinox ViewSmart Room Controller ENE3

has been installed. The Evinox Modusat PaySmart technology can be activated and set up remotely. This allows for the choice of billing option to be made after the installation of Evinox’s HIUs,

• Debt risk can be eliminated by providing a system where residents pay for energy in advance • When this system is utilised it keeps the tariff rate to a minimum due to less administration and a reduced debt management service being required

User interface As part of the Code for Sustainable Homes, credits are available when an ENE3 compliant energy display device is installed in the home. The aim of this is to promote the specification of equipment that displays energy consumption data, therefore empowering residents to reduce energy usage. The Evinox ViewSmart Room Controller is classed as an energy display device and is installed in the home for use with the ModuSat Heat Interface Unit as a standard part of our integrated system. The room controller provides an interface for the occupier of the home and combines the following functionality: • Heating & Hot Water Control, Settings & Time Schedule Programmer • Displays Credit, Tariff and Consumption information • ENE3 Energy Display Device provides historical usage data for heating and electricity consumption giving up to 2 credits towards the Code for Sustainable Homes The ENE3 compliant ViewSmart controller is capable of displaying all of the information required to gain credits for the Code for Sustainable Homes. This includes historical consumption data in a graphical format to enable residents to view information about their usage and compare different periods. This provides a number of benefits to housing associations and developers, primarily it removes the requirement to install a separate energy display device in order to gain credits towards the Code for Sustainable Homes.

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Images:

Social landlords and Housing Associations have been faced with the difficult task of dealing with bad debt and are often required to maintain a debt fund for communal heating schemes. This is used in circumstances where residents fail to pay for the energy they have consumed and leads to an increase in the tariff rate for all residents of the scheme, to cover this debt fund.

The Evinox PaySmart system allows residents to pay for energy in a number of convenient ways such as via the internet 24hrs a day, using a Payzone card at their local retail outlet, by direct debit, standing order or over the telephone – making it simple to top up energy at any time.

* info@evinox.co.uk

( 01372 722277

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CLEARVIEW CLEARVIEW STOVES STOVES

Floors, Walls & Ceilings

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HVAC/HVP

JIS Europe of Haywards Heath introduced the original 100% stainless steel heated towel rails to the UK. Since 1996 the company has been manufacturing beautiful polished towel rails to exacting standards. Here, it unveils some of the latest products added to its stylish portfolio.

rand new additions to the JIS Sussex range are a set of three Fletching Rails, substantial towel rails especially conceived to match the modern trend towards retro-styled bathrooms. The Fletching Rails are beautifully made to a smart but chunky design that has distinct overtones of the massiveness of superior Victorian plumbing. The Fletching Rails are in top quality stainless steel in a polished finish and are available in central heating, electric and dual fuel formats. The design of the Fletching Rails is simple but effective. The smallest model is 520mm wide and 635mm high, with fixing supports at each corner and a central horizontal rail in addition to those at top and bottom. The larger sizes are also 520mm wide and 910mm high and 1185mm high respectively; the 910mm model has two unsupported horizontal rails and the largest, three. The corner supports are very simple

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Heated support from JIS Europe

this radiator durable and hygienic and it is covered by a 25 year guarantee. Also newly manufactured from JIS is a new accessory for extra towel hanging space. The ideal solution when family or extra guests arrive increasing the number of towels to be placed on the existing towel rail. The new accessory is also ideal for airing towels freeing the main towel rails to emit as much heat as possible. The new fitting manufactured in 100% stainless steel, like all JIS Europe’s range, is available in three widths 400, 520 and 620mm and is 317mm deep. It fits many of the existing towel rails in the extensive JIS range. The new accessory is also available in polished or satin finish. The additional shelf or hanging accessory is simply attached to an existing towel rail’s horizontal bars at the desired height by releasing the back plate using an Allen key and placing the shelf against the towel rail whilst reaffixing the back plate with the Allen key. * info@jiseurope.co.uk

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( 01444 831200

to fix and are designed to hold the rails sufficiently far from the wall to prevent the ‘snagging’ of towels that can be so infuriating. Confidence in the permanence and corrosion resistant qualities of the stainless steel towel rails is backed by a 25 Years JIS Guarantee. JIS Europe has introduced another heated towel rail to its Sussex range named The Cinder. The towel rail is manufactured for places with restricted space with only three horizontal rails. The Cinder is ideal for the smaller bathroom, wash room, downstairs cloak room or the kitchen.

Compact measurement The measurements are a compact 370mm high by 520mm wide. It can be used in dual fuel formats or electric, which will allow the rail to be heated when the central heating is turned off. The towel rail is manufactured in 100% stainless steel, with satin finish available to order, making

Images: Above left: The Fletching Rails are in top quality stainless steel in a polished finish and are available in central heating, electric and dual fuel formats Above: This new accessory is ideal for airing towels freeing the main towel rails to emit as much heat as possible

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HVAC/HVP

Air curtains create an invisible barrier of air that separates two thermal zones. They can reduce the energy consumption of heating and cooling systems as well as making an environment more comfortable. Here Mike Verney, Sales Director at JS Air Curtains, provides an overview of things to consider when specifying air curtains.

n open doorway without an air curtain will experience a flow of heavy cold air at the bottom from the cold to the warm side and a flow of light warm air at the top from the warm to cold side. An air curtain must be powerful enough to create a seal that resists this air pressure and substantially reduces the flow of air. The most common error in air curtain installations is the use of an underpowered air curtain that doesnâ&#x20AC;&#x2122;t provide enough air volume. However, if an air curtain is oversized and provides air at an excessive volume, the turbulence created at the bottom of the doorway can have a negative effect and promote thermal transfer through the entrance rather than reduce it. The length of an air curtain ought to slightly overlap the width of the doorway (when mounted above) in order to minimise air leakage at the edges. If it is too small, irrespective of the air velocity it produces, it will not provide an effective barrier. It is also important that the air curtain is located as close to the door opening as possible. An air curtain that is located at a distance from the doorway will allow air leakage around the edges of the barrier it

creates, reducing any benefit. Most air curtains have adjustable outlet vanes that enable the air flow to be directed at a certain angle for the best possible seal.The optimum angle for the flow of air is slightly into the colder side irrespective of whether the application is protecting a heated or chilled environment. When the air flow hits the ground it will split, with the majority returning inside the warmer area due to the pressure created by the heavier cold air.

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Controlled thermal zones

supported from the ground. Air curtains can be heated with electric elements, low pressure hot water or steam. Air curtains maintaining a chilled environment, such as a cold store, are employed without heating. Some warehouse doorways that are very high employ a vertically stacked combination of heated units at the bottom and unheated units on top. In the summertime air curtains can be used without the heater to provide an ambient air seal and keep in air conditioning. It can be tempting to use this approach in the winter to keep out cold air, as it reduces the energy consumption of the air curtain system. However, heated units will improve the comfort level inside a room. Before specifying an unheated system, consider what the acceptable temperature is internally and whether there is an additional heat source. Selecting the correct control strategy is essential to prevent under or overheating and reduce energy consumption. The basic control option is manual on/off with fan speed and heater level control. In addition room thermostats can be used to control the heat output and door switches to adjust fan and heater settings when the door is open or closed. A combination of room thermostat and door switch can provide an appropriate level of heating and air velocity only when required and minimise energy consumption. * sales@jsaircurtains.com

( 01903 858656

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The right combination Air curtains can be positioned horizontally above a door or vertically to the side. The choice is often purely an aesthetic one but other factors can play a role. A lack of space above a doorway, a very high ceiling, glass fascia or other structural elements could make vertical installation at the side of the door a better option. It is often possible to overcome initial difficulties in positioning an air curtain through innovative design. A high ceiling can still accommodate a horizontally suspended air curtain with a long, attractive support column. Alternatively goalpost type legs can be used so that a horizontally positioned unit is suspended above a doorway but independently

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Images Above: Vertical Rund air curtain at Canary Wharf Left: Zen air curtain at Manzil Banquet Hall

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BROWSE | SPECIFY | SOURCE | DIGEST The smarter way to access news and products for the sustainable building market. With its easy-to-navigate format, users can benefit from a variety of useful tools, such as the magazine’s latest issue, digital archive, suppliers and newsbank. The App is also synced with SBP Library (www.sustainable-buildingproducts.com) providing an essential specification portal. | Bespoke, reader-friendly features tailored to professionals on the move | | Timely industry news delivered at the touch of a button | | Manage print & digital subscriptions | For a faster response visit www.fca-magazine.com or use the free reader enquiry card

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HVAC/HVP

Last month, Speedheat announced that a converted Victorian village school had become the first home in the UK to run the company’s electrical floor heating by solar power.

enerating at least part of their electricity needs from solar panels was one of the first things that Richard and Yvonne considered after the family moved into their five-bedroom home. The house already benefited from Speedheat underfloor heating throughout, having been designed and installed under terracotta, marble and ceramic tiling, solid oak flooring and carpet. “Using solar power was something we had always wanted to do, both for financial and environmental reasons,” explained Yvonne. They asked Halo Energy to come up with a plan that took into account the slate roof of an 1830s building with a modern extension, the total energy needs for the house and how much could be generated by solar power. It was also the first time that Halo Energy had been asked to install solar panels for a house that had an electrical underfloor system as the primary heating source. Director Simon Watkinson added: “It is a sizeable property with corresponding electricity needs. By using advanced technology, we were able to create a

three-phase system that we expect should pay for itself in eight years.” The result is three sets of roof-mounted panels capable of supporting an 8kw supply – double that of more typical residential systems but less than required for commercial use. It is daylight, not sun, that triggers the panels into action, so even during the dullest times of the year when a boost is needed from the mains supply, the solar system is still making a valuable contribution to the family’s energy needs.

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Speedheat’s solar success

Yvonne runs her Verbal Copywriter and coaching consultancy from home. She explained: “The house needs to be warm in the day as I can’t stand being cold. During the winter, we run the heating during the day while electricity is being generated and it turns off at dusk.” The system’s monitor is connected to the internet so Yvonne, the energy supplier and Halo Energy can run a check at any time. It also flags up a running total of the CO2 emissions saved, the equivalent number of trees that would need to be planted to equal that contribution and even how many light bulbs could be lit by the solar powered electricity. “We are not neutral in terms of our bill, but we’re fairly close to being carbon neutral in our electricity use,” added Yvonne Speedheat’s Technical Manager, Michiel Bester, is impressed. “We knew that, in theory, a typical domestic 4kw solar set up would be more than enough to support our electrical floor heating in a single room such as a conservatory and help offset the running costs. But it had never been put to the test. The Old School installation has proved that theory in a big way!” * info@speedheat.co.uk

( 01908 562211

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Flexible controls The sums add up, too.The mains electricity supplier pays out for half of everything generated from the roof panels at 14.5p per kw. In the first eight months of operation, which included a full winter, the Gurneys received £550 to offset against their overall bill. It has also led to a different way of thinking in the way that they use electricity, especially the heating. Speedheat’s advanced thermostat controls are adjustable to suit how and when the family uses the heating to maximise the electricity generated during daylight and keep the house cosy.

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Images: Above: Yvonne runs her Verbal Copywriter and coaching consultancy from home, so underfloor heating is required throughout the day Above left: Solar panels were requested for a house that had an electrical underfloor system as the primary heating source

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