The formula used to determine the amount of CFM, or cubic feet per minute, a room needs for heating begins by multiplying the room's volume by the number of times the heated air gets changed hourly. Then divide the resulting number by 60 to produce the amount of CFM required.
Know MoreTo determine the room's volume for the first step in the formula, the room's length, width and height must be multiplied together. When this volume is multiplied by the hourly air changes, the resulting number is the amount of cubic feet of air that passes through that room hourly. The cubic feet is then divided by 60 in the final step, since there are 60 minutes in an hour. The resulting CFM refers to how many cubic feet of air must be fed into that room every minute.
Learn MoreThe formula for calculating BTU loss or gain in converting CFM to BTU is temperature difference times actual CFM leakage times 1.08 equals BTU loss or gain. CFM is the actual cubic feet of air volume per minute pushed through the HVAC unit. BTU is the British thermal unit of heat removed from the room by the HVAC unit.
Full Answer >An HVAC plenum is a thin box with five sides made of galvanized sheet metal. It connects to the outlet of a furnace or air handler and is a key component of any HVAC system.
Full Answer >HVAC is short for heating, ventilation and air conditioning. The acronym refers to a system that provides a building with heating and cooling services. As of 2014, new buildings are required by industry standards to use unified HVAC systems rather than separate devices.
Full Answer >An HVAC gas pack is a heating and cooling system with the heat pump and the air conditioner housed together in a single unit. HVAC gas packs use propane, natural gas or oil for heating purposes, and for cooling purposes, it uses electricity.
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