Air-source refers to a type of heating and cooling system that uses the outside air to regulate indoor temperatures. These systems work by extracting heat from the air during the winter to warm your home and releasing heat back into the air during the summer to cool it down. This makes them an energy-efficient option for climate control. One common example of an air-source system is the heat pump. Heat pumps can provide both heating and cooling, making them versatile for year-round comfort. They are increasingly popular due to their lower energy consumption compared to traditional heating methods, helping to reduce utility bills and environmental impact.