Heat Pumps are a popular and energy efficient way of heating a home. energy BY DESIGN are an MCS Accredited Company allowing you to take full advantage of the Governments Renewable Heat Incentive scheme. We can offer bespoke installations depending on your needs rather than a ‘one size fits all’ approach. An air source heat pump harvests the energy from the ambient air temperature and can even function down to -20ºC. It is connected to the domestic heating system by a simple flow and return pipe and just requires an electricity supply. A ground source heat pump works on the same principle but obtains its energy from ground coils or ground water.
A heat pump works on extracting latent heat energy from either water or from the air and moves it across an evaporator. Inside the evaporator is a refrigerant which boils at low temperatures. As this refrigerant boils it is moved round a closed circuit by a compressor which compresses these hot gases until they reach high temperatures and high pressures. Once in this state they pass over a heat exchanger which is also known as a condenser and it is here which we gain our usable heat energy. We now have a lower temperature refrigerant at high pressure so it enters a pressure relief valve and turns back into an (almost) liquid state. It is then pumped back through the evaporator to repeat the cycle.
With conventional boilers 1kW of input energy provides less than 1kW of output energy or heat. With a heat pump, every 1kW of input energy is converted up to 4kW of output energy, depending upon ambient air temperatures. This can make a heat pump up to 4 times as efficient as a gas or oil boiler and is becoming a natural choice for low cost heating and hot water. With the Governments Renewable Heat Incentives (RHI) a heat pump should be eligible providing certain criteria are met and the customer will receive a payment for every kW of renewable heat produced. To find out more see F.I.T.S and RHI.
No gas supply, flue or ventilation is required and heat pumps are ideal for non gas grid areas.
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