Air Conditioner – An appliance, system, or mechanism designed to dehumidify and extract heat from an area. Usually this term is reserved for smaller self contained units such as a residential system.
Air Handler – An air handler, or air handling unit, is the indoor part of an air conditioner or heat pump that moves cooled or heated air throughout the ductwork of your home. It is usually a large metal box containing important elements of an HVAC system that controls airflow and filtration.
British Thermal Unit (BTU) – A measurement of heat energy. One Btu is the amount of heat required to raise one pound of water by one degree Fahrenheit. The higher the Btu rating, the greater the heating capacity of the system.
Coil – Equipment that performs heat transfer to air when mounted inside an air handling unit or ductwork. It is heated or cooled by electrical means or by circulating liquid or steam within it.
Compressor – An AC or heat pump compressor is the part of an outdoor air conditioner or heat pump that compresses and pumps refrigerant to meet household cooling requirements.
Condenser – A condenser (or AC condenser) is the outdoor portion of an air conditioner or heat pump that either releases or collects heat, depending on the time of the year.
Damper – Found in ductwork, this movable plate opens and closes to control airflow. Dampers are used effectively in zoning to regulate airflow to certain rooms.
Ductwork – Pipes or channels that carry air throughout your home
Energy Star® – A program developed by the Environmental Protection Agency (EPA) in order to reduce the nation’s energy consumption. ENERGY STAR® -qualified heating equipment can be up to 15 percent more efficient than standard models. ENERGY STAR® -qualified cooling equipment can be up to 7 percent more efficient than minimum-standard equipment.
EER (Energy Efficiency Ratio) – A ratio to determine the energy efficiency of an air conditioner. The higher the EER rating, the more efficient the unit. EER ratings are generally lower than SEER ratings because SEER ratings are seasonally adjusted while EER ratings are calculated against a fixed ambient temperature.
Evaporator Coil – A series of tubes filled with liquid refrigerant that absorb heat from the air as the liquid refrigerant is ‘evaporated’ into vapor.
Furnace – An indoor heating unit that works in conjunction with an air conditioner or heat pump
Gas Furnace – A gas furnace is the part of an HVAC system that converts natural gas or propane into high-temperate heat for the home. Royal Air Heating & Air Conditioning are gas furnace installation experts.
Humidifier – A humidifier is a device that adds moisture to indoor air in a single room or throughout an entire house. Whole-home humidifiers may use the fan in your furnace or air handler to blow humidified air throughout the ductwork, or they may work independently of your heating and cooling system to maintain humidity levels even when the furnace or air handler isn’t operating.
Heat Pump – A heat pump is an HVAC unit that heats or cools by moving heat. During the winter, a heat pump draws heat from outdoor air and circulates it through a home’s air ducts. In the summer, it reverses the process and removes heat from the house and releases it outdoors.