Traditionally, a home heating system will create heat by either burning fuels or converting electricity. Heat pumps however are different, as they can transfer existing heat energy from the ambient air, into your home to heat radiators and hot water – even in temperatures as low as -20 degrees Celsius. This impressive technology is what makes heat pumps so efficient to run, as they can deliver more heat energy than the electrical energy they use. The easiest way to understand how an air source heat pump works is to imagine it working like a fridge, only in reverse! With low maintenance requirements, heat pumps have a lifespan of over 25 years and the internal defrost cycle in the system ensures operation all year round.