company profile | dealer login | links | tell a friend  

Distribution / Delivery Systems

From heating and cooling your home, to heating water for domestic needs, radiant floor systems and pools, geothermal systems have the capabilities for many applications.  Add that to its energy savings and years of quiet, reliable operation, and you'll see why geothermal heat pumps (especially Waterfurnace, just a subtle advert here) outperforms and outlasts any conventional means of heating or cooling

The Versatec Series water-to-water unit handles the water applications delivering water to temperatures of up to 60 degrees Celsius and chilled water to -15 degrees Celsius.
The Premier Series water to air units, handles all the direct air heating and cooling needs.

Example of how the COP of a water-to-water heat pump varies with the distribution/return temperature

	Heat distribution system (supply and return temperature) COP
Conventional radiators (60°C) 2.8 Under floor heating (35°C) 4.6 Modern radiators (45°C) 3.5

COP stands for Coefficient of performance (efficiency) a COP of 1 is 100% efficient, the best an oil boiler can do is 90 % or a COP of 0.9

On of the rules of thermodynamics is that "energy cannot be created or destroyed only changed from one form to another" A heat pump achieves efficiencies of 400% + by the following simple math's.

How its done.........

Radiant Heat (i.e. Under floor Heating)
An under-floor radiant heating system operates by circulating warm water through a series of pipes embedded in the floor. Acting as a giant radiator, the floor generates warmth to bodies and furnishings. Your feet and furnishings stay warm through conductive heat, while the air passing over the warm floor provides additional convective heat. The warmth of radiant heat provides superior comfort. Because the piping system is encased in the floor, furniture can be arranged however you choose.

Radiators 
Other radiant heat applications requiring hot water, including wall or floor mounted radiators, may also be used however at a lower efficiency. They will work but in general the radiators will need to be sized 25 % larger, as the temperature differential is lower. 

Fan-Coil Systems

 
Some applications incorporate the use of fan-coil units where hot or cold water is passed through a water coil in an air handler to supply conditioned comfort. The Versatec water-to-water unit delivers the right temperatures of water to heat, cool and dehumidify. These fan coils vary from stylish domestic and office equipment as shown here, to large commercial units handling cubic meters of air per second.

Air Ducting 
With the Premier range of units, air can be ducted around the house (as they do in the states) this dry system, although bulky trunking isn't very suitable in domestic applications , it does lend itself to quick response, instant change over from heating to cooling, and is ideal for large open areas such as halls, gymnasiums and atriums. Picture shown is an installation in the basement of a control tower in Bantry Co.Cork

Domestic Water Heating

Systems can be designed to generate an abundant supply of hot water, created efficiently without the need of fossil fuels. Whether it's for a residential or commercial application, the Versatec Series water-to-water unit can keep you in hot water.

 Pool and Spa Heating
With efficiencies three times that of conventional pool heaters, the system can reduce water heating costs for pools dramatically. Owners of outdoor pools can now affordably extend the swimming season with an abundant supply of clean, efficiently heated water. Control of the pool air heating and dehumidification is as important as the pool heating. When designed correctly, heat recovery on the exhaust air and dehumidification can be effected for free.

For more information on the above contact info@ahac.ie