The Benefits of Installing Heat Pumps
- Reduce your CO2 emissions by up to 50%
- Counts towards level 3 code for sustainable homes
- Simply requires water and electrical supplies – no gas, flues or ventilation
- Low running & maintenance costsLow running noise
- Reduced VAT to 5% for domestic applications
How Air Source Heat Pumps Work
Air source heat pumps are similar in principle to a refrigerator but instead of cooling they take heat from the air and convert it into usable heat.
A heat pump usually has four main components, an evaporator, compressor, condenser and expansion valve.
An air source heat pump works by taking air from outside which is drawn over the evaporator. The refrigerant soaks up heat from the air and converts it from a liquid to a vapour. The refrigerant is sent through a compressor, which pressurises and as a result pushes up the temperature of the vapour. This can now provide a temperature we can use in domestic heating. The higher temperature refrigerant then goes to the condenser heat exchanger, moving heat to the heating system. The refrigerant returns to liquid now that the heat is removed.
The liquid refrigerant then returns to its original state as it passes through the expansion valve.