Theros newsletter 2009-04 English

Page 1

Our news April 2009 Page 1/6 Beyond small air-conditioners what?

Heat

For bigger applications as the heating of an entire house up to large buildings other types of heat pump exist suitable to cover any requirement.

pump applications There is a way to take heat from the air and the soil during the winter to keep our houses warm with much lower cost then oil or N.G.

It is sounds as a paradox or even “late night TV marketing” but it is a very real option with the use of heat pumps. Another very scientific term, but into practice is the right terminology for the commonly used air-conditioning machines of all sizes. Heat pumps are machines which as their name very clearly says, they draw heat a medium (air, water, etc) and transfer it to another medium. As an example our humble air-conditioner when it functions in the heating mode it draws heat from the environment. Heat pump for the If we feel the air that passes from heating/cooling of a the exterior unit we will realize small office building that it gets cooler. This heat is transferred into our house. The same machine the summertime “sucks” the heat through our house and rejects it to the environment (the exterior machine heats the air).

In houses and apartment buildings, normally air -water heat pumps are used, meaning they draw energy from the surrounding air and heat the water that goes in underfloor or fan coil systems. Heat pumps can replace completely the oil/gas boilers with important advantages,

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There are no negatives? Of course there are, like every technical solution,

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www.theros.gr

Economical to run — up to 70% less annual cost! The offer heating and cooling so no extra AC units are needed as is the practice now. They do not need a chimney, fuel tank, or machine room. You pay the fuel (electricity) after using and not in advance. Reduced environmental pollution. Safe operation without flammable fuels, special fire protection measures, etc. Reliable solution with low maintenance requirements. Less dependence on fossil fuels.

Larger initial cost then the equivalent oil boiler so their dimensioning must be without excesses. Their efficiency is reduced in very low/ high temperatures so they study must take it into account. The design of the system has more variables. They can not be used efficiently with radiator panels.

THEROS Ο.Ε. Registered office: Ι. Karavela, Perivolia, Lefkada 31100 Tel. 26450-22299, Fax 26450-22208, email info@theros.gr


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