A device for removing dust particles from air or unwanted elements from liquids. That part of an environmental system which converts gas, oil, electricity or other fuel into heat for distribution within a structure. The amount of heat gained, measured in BTU's, from a space to be conditioned, at the local summer outdoor design temperature and a specified indoor design condition. The amount of heat lost, measured in BTU's from a space to be conditioned, at the local winter outdoor design temperature and a specified indoor design condition. Compression cycle system used to supply heat to a temperature controlled space.
Same system can also remove heat from the same space.
The total heating output of a heat pump during its normal annual usage period for heating divided by the total electric power input in watt-hours during the same period. A device that adds moisture to warm air being circulated or directed into a space. A device designed to regulate humidity input by reacting to changes in the moisture content of the air. Air flow inward into a space through walls, leaks around doors and windows or through the building materials used in the structure. This is usually located inside the house and contains the indoor coil, fan, motor, and filtering device, sometimes called the air handler.