Airflow Volume: Measured in cubic feet per minute (cfm), this is the amount of air circulated in a space.
ASME: American Society of Mechanical Engineers.
BTU: A British Thermal Unit is a measurement of the amount of heat required to raise or lower the temperature of one pound of water one degree Fahrenheit.
BTU/h: British Thermal Units per hour
Burner: The device that facilitates the combustion of air and gas.
CSA: Canadian Standards Association.
Flue: A vent that removes the byproducts of combustion from a furnace.
Heat Exchanger: A device through which heat is transferred to a cold or warm area or surface.
Heating Coil: A coil that acts as a heat source for a heating system.
Heat Loss: The amount of heat lost or subtracted from a designated area.
Heat Pump: A device used for either the heating or cooling of a space by transferring heat between two reservoirs.
PSI: A pound per square inch is a unit of pressure resulting from the force of one pound-force applied to an area of one square inch.
Thermostat: A wall mounted device that monitors and controls the output of an HVAC system.