It is simply power derived from the Earth’s internal heat. This thermal energy is contained in the rock and fluids beneath Earth’s crust. It can be found from shallow ground to several miles ...

Heat pumps warm buildings by absorbing heat from the air, ground, or water. Air-source pumps, for example, suck in outdoor air and pass it over tubes containing refrigerant fluids to produce heat.

But how does a heat pump work? Well, a heat pump takes energy from the air or ground and transfers it indoors to heat your home. David Leviseur, CEO and co-founder of heat pump specialist Fornax, ...