A device in a heat pump that reverses the flow of refrigerant as the system switches from cooling to heating.
Air drawn into a heating unit after having been circulated from the heater’s output supply to a room.
Wine cellars that are cooled separately from the rest of the home.
The ratio of the amount of vapor contained in the air to the maximum amount the air could hold at that temperature, usually expressed as a percentage.
Combination grille and damper assembly covering an air opening or end of an air duct.
Set of two copper lines connecting the outdoor unit and the indoor unit.
A substance that produces a refrigerating effect while expanding or vaporizing.
Type of heating that can be combined with geothermal systems to warm a home’s floors.