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Dec 23,  · How is BTU converted into CFM? Update Cancel. Now if you want to reduce theoretical concepts down to rules of thumb, the standard volume flow rate per unit of power in the HVAC industry is cfm per ton, and a ton is 12, BTU's per hour, so cfm per 12, BTU's per hour of . Rules and *Rules of Thumb for Duct Systems Designing Heat Pump duct systems with correct velocity and low restriction AHU Supply & Return connection - properly sized; Size for * cfm per nominal ton, convert round sizes to their rectangular equivalent as needed. How Do You Convert BTU to CFM? To convert Btu per hour to CFM per minute, take the energy transfer rate in Btu and divide it by , Multiply the result by Divide that result by 60 to devise the gas transfer rate in cubic feet per minute. The Btu has to be divided by , because that.

Btu cfm rule of thumb
Btu cfm rule of thumb

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