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A piece of air conditioning and heating equipment where all components are located in one cabinet. Used occasionally in residential applications, the package unit is installed either beside or on top of the home.
A furnace in which the natural flow of air from around the furnace provides the air to support combustion.
A mathematical design tool used to determine the heat gain and heat loss in a building so that properly sized air conditioning and heating equipment may be installed.
A Heating and cooling system comprised of products that have been certified to perform at promised comfort and efficiency when used together.
Means the ratio of the cooling capacity of the air conditioner in British Thermal Units (BTU) per hour, to the total electrical input in watts under test conditions.
An electronic device that filters out large particles and contaminants in indoor air.
Allows outside fresh air to provide cooling only when outside air temperature and humidity are low enough.
Pipes or channels that carry air throughout a building.
A furnace that pulls in return air from the top and expels warm air at the bottom.
Found in ductwork, this movable plate opens and closes to control airflow.
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