We've taken our proven formulas and designed this easy-to-use BTU calculator.

Fill out the fields to find out how many BTUs you will need to generate per hour. Use this number as a guideline when choosing what size industry heater would work best for your construction site, whether it is in North America or anywhere in America.

R-Value is a measure of the capacity of an insulating material to resist heat flow (units: ft² °F hr / Btu). The higher the R-value, the greater the insulating power.

Building Tightness is a measure of the leakage of air from a building. It is defined as the fraction of the air volume of a building that leaks outs of the building per hour (units: 1 / hr). The lower the value, the tighter the building is.

0.33 = Very Tight 0.5 = Tight 1 = Moderate 2 = Loose 3 = Very Loose

OUTPUT:0MBtu / Hour

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