A heat pump is a device that can move heat from one place to another, using a small amount of electricity. Unlike conventional heating systems that generate heat by burning fuels or using electricity, heat pumps can extract heat from the air outside and transfer it to your home to warm up your radiators and water. This process works even when the outside temperature is very cold, down to -20 degrees Celsius. That’s why heat pumps are very efficient, as they can produce more heat than the electricity they consume. You can think of a heat pump as a reverse fridge, which takes heat from inside and releases it outside. Heat pumps are easy to maintain, last for more than 25 years, and can operate all year round with a self-defrosting system.