Heat Pumps Ground Source Heat Pumps
The earth stores an enormous amount of solar energy from both solar radiation and rainfall, with ground source heat pumps extracting this freely available energy to provide low cost, low carbon, high efficiency heating and hot water.
To extract the energy, ground source heat pumps use collectors filled with a mix of water and antifreeze buried in the earth, either horizontally – if a large enough land area is available; or vertically in a borehole where land space is limited. Although more costly to install, with consistent temperatures below the surface of the earth throughout the year, ground source heat pumps deliver high levels of efficiency all year round irrespective of seasonal variations in air temperature.
Air to Water – Air Source Heat Pumps
Even cold air is full of energy and air source heat pumps use the freely available heat in the ambient air to provide efficient heating and hot water at air temperatures as low as -25°C. Because the source of heat - the air - is abundantly available all around us, air source heat pumps have the advantage of low installation costs and minimal space requirements, making them ideal for new build or retro fit applications, especially where space is limited.
Suitable for either indoor or outdoor installation, air source heat pumps can be used for heating, cooling and to produce domestic hot water and with the relatively mild winter temperatures in the UK, can achieve seasonal co-efficients of performance comparable with ground source heat pumps meaning excellent levels of performance can be achieved throughout the year. Air source heat pumps offer an affordable and practical renewable energy solution.
Air to Air – Air Source Heat Pumps
An air to air heat pump is an all-in-one heating and cooling system that’s designed to provide year-round comfort.
Outside air, even on cold days, contains latent heat which can be converted to provide environmentally-friendly, low cost heating for a wide range of domestic and commercial properties. Using a similar principle to the refrigerator, but in reverse, outside air is drawn into the external unit where it meets a liquid refrigerant. The refrigerant absorbs free energy from the air and turns into a gas. This gas is compressed to form a high temperature gas which is then converted by the indoor unit into warm air to heat the property. It is an extremely efficient process which could produce up to 5 times more heat than the electrical energy it uses and, as an added benefit, this operating process can be reversed in the warmer months to provide cooling air.