The general concept of the Heat Pump system is that it works as a reverse air conditioning system. It converts low temperature heat into a much higher and more useful temperature. This heat can then be used for heating water and the home. It can also be used to pre-heat water before it goes into a more conventional boiler
Two main types of Heat Pumps
1. Ground Source Heat Pumps (GSHP) - These heat pumps use pipes buried in the garden to extort heat from the ground. Using initial heat from the ground, together with the high efficiency of the heat pump will save a large amount of carbon dioxide emissions that would other wise be expelled into the atmosphere under traditional heating systems.
Ground Source Heat Pumps are getting increasingly popular world wide with extra focus in the American and European markets. According to estimates, there are approximately 550,000 units installed world wide (of which 80% are domestic), and there are about 66,000 annual installations on going.
2. Air Source Heat Pump – These heat pumps are electrically powered systems which is a combination of a compressor and two carefully matched heat exchangers. Simply designed to offer space heating, through water systems, extracting air, a renewable source which is also free. The air will absorb and store heat from the sun, then it is possible to extract considerable heat from ambient temperatures as low as -20°C. Air Source heat pumps have major advantages over its rival the ground source heat pump.
Advantage of air source heat pump over ground source heat pump: The air system is easily installed to either new build or older properties as there is no need for any time consuming installation or expensive excavations. All the compressor requires is sitting in a sufficient outside air flow.
Although the technology is well used around the world, the UK market is much slower to catch up with this new renewable energy technology as there is a low level of awareness. We believe this is likely to change, as more systems become available and as people search for better ways in conserving energy and reducing carbon dioxide.
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