How does a Heat Pump work?

Perhaps the easiest heat pump to understand is the Ground Source Heat Pump The earth absorbs and stores heat from the sun year after year, providing us with a constant source of naturally renewed energy. Just a few feet under the ground, there is a fairly constant average temperature of between 4˚C and 12˚C. This trapped energy represents a vast reserve of low grade heat waiting to be tapped. The ground source heat pump gathers heat from the solar energy stored underground, either using collectors buried at a shallow depth, or from boreholes deeper underground. The heat is transferred from the ground to the heat pump using a mixture of water and an environmentally friendly anti-freeze solution. It circulates through the closed loop, absorbing thermal energy from the earth and carrying it to the heat pump. The refrigerant circulates in the heat pump and thus the heat from the ground is retained and converted into high grade heat to be released into your home via an underfloor heating system, water based radiators and into your hot water tank Air Source Heat Pumps work in a very similar manner. Instead of the heat coming from the earth, heat is taken from the sourounding air. The outdoor air is pulled through the heat pump by a large fan, and heat is absorbed for the refrigeration cycle. Colder air is then blown back out. The Nibe Air Source Heat Pumps can absorb heat from air as cold as -15 degrees. Heat Recovery Heat Pumps are similar to the Air Source Heat Pump, the Heat Recovery systems ventilate heat from inside the building, typical from the warm rooms like the bathrooms, kitchen and living area. Unlike a conventional heat recovery system. these systems put the recovered heat back into the heating and hot water systems

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