Autumn and winter: efficient heating
The outdoor unit collects heat from the air and the indoor unit releases it into the room. Even when it’s close to freezing outside, there’s enough heat in the air to warm your home. Because the system moves heat rather than making it, a well-installed heat pump typically delivers two and a half to four units of heat for every unit of electricity it uses.
That makes it far cheaper to run than electric panel heaters, fan heaters or storage heaters, which give one unit of heat for each unit of electricity. Rooms warm up in minutes rather than hours, and each room can be set to its own temperature on its own timer.