In some countries (Australia), heat pumps are often called Reverse-Cycle Air Conditioners. Some newish (last 25 years or so) houses have no other form of heatin

In some countries (Australia), heat pumps are often called Reverse-Cycle Air Conditioners. Some newish (last 25 years or so) houses have no other form of heating. In other words, reverse the cycle, and instead of the air-conditioner pushing cold air into the room and warm air outside, it will push warm air into the room and cold air outside.