Fan Size Calculator
Heatbuster
The HeatBuster is one of the most rugged and dependably built, full service…
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Fan Size Calculator
Eliminate the guesswork. Use these tools to calculate the right size fan everytime.
Calculate the cubic feet of your structure.
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How many minutes per single air change do you require?
Cooling people?
We suggest 2 to 4 minute single air change.
Cooling product?We suggest 4 to 6 minute single air change.
Removing stagnant air?We suggest 6 to 10 minute single air change.
Your climate or equipment may alter your minutes required
Please select a number from 2 to 10.
Air Flow Required:{{computedAirFlow ? computedAirFlow.toLocaleString() + " CFM" : null}}
How do I know what size fan to buy?
Precision airflow is a formula.
Example:
Building structure:
100’ L X 100’ W X 10’ H = 100,000 CUBIC FEET
Minutes per single air change:
100,000 / 4 MINUTE SINGLE AIR CHANGE = 25,000 CFM AIR FLOW REQUIRED
