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Free Sensible Heat Airflow Calculator
Calculate the required airflow (CFM) to handle a known sensible heat load using the sensible heat formula: CFM = BTU/h ÷ (1.08 × ΔT). Enter the heat load in BTU/h and the temperature difference (supply air vs. return air) to find the required airflow.
Frequently asked questions
What is the sensible heat formula?
CFM = BTU/h ÷ (1.08 × ΔT), where ΔT is the temperature difference between supply and return air in degrees Fahrenheit. The constant 1.08 accounts for air density and specific heat.
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