01202 662500 | sales@hamworthy-heating.com | hamworthy-heating.com 9 Why heat pumps and electrification? Heat pumps are a highly efficient, eco-friendly way of producing heating and hot water. By taking “free energy” from the air via a refrigerant cycle they generate heat without releasing any carbon emissions. 01 02 03 04 Water Out Water In Useful Heat Compressor Expansion Valve Ambient Air Condenser Heat Exchanger Evaporator 1 3 2 4 Heating & Hot Water How does a heat pump work? CAPTURE The fan passes ambient air over extremely cold liquid refrigerant. The refrigerant captures the heat from the ambient air and becomes a warm vapour. COMPRESS The warm refrigerant vapour passes through a compressor which produces hot refrigerant and usable heat. EXCHANGE The heat in the hot refrigerant is then transferred to the heating and hot water cylinder through a heat exchanger. EXPAND Once the heat has been transferred to the house, the refrigerant passes through an expansion valve which reduces its temperature, making it really cold again and enabling it to capture heat from the ambient air, continuing the cycle.
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