Category Archives: air source heat pumps

In the winter, an air source heat pump uses the air from outside to heat the inside of a home. Through the process of refrigeration, heat can be extracted from outside air with a temperature as low as 40 degrees farenheight. The pump has a refrigeration system that is composed of a compressor and two copper coils, in which liquid refrigerant continuously flows. While heating, the liquid refrigerant extracts heat from the cold, outside air and forces it into the home.

Many air source heat pumps also have an indoor coil which replicates the heating process to cool a home. Heat is removed from the indoor air and pumped outside, leaving the interior of the house comfortably cool. A pump that both heats and cools is called a split system.

Air source heat pumps have been in use for many decades, but recent innovations and improvements have greatly improved their efficiency and performance over the last three decades. Technological advances such as improved coil and electric motor design and copper tubing with a grooved inner surface coupled with the options of variable speed motors and thermostatic expansion valves have improved the performance and customer satisfaction of heat pumps.heating homes air source heat pumps geothermal energy Continue reading →