Which Air Source Heat Pump is right for my home?

What is an air source heat pump?

Air source heat pump

An air source heat pump consists of two parts, and outdoor unit and an indoor unit, it functions in the opposite way to a fridge. They can either work as a heating only device or a heating & cooling device. The outdoor unit of the air source heat pump will take energy (heat) out of the ambient air by pulling the air through a fan. This outdoor air heats up a refrigerant to the point that is boils and turns into gas, thanks to its extremely low boiling temperature. Once boiled, the refrigerant is pushed through a compressor, which heats it further to temperatures of around 60-70degrees. This is then used to heat things like your hot water and radiators and underfloor heating.