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Estimating a Temporary Heat Job
The following formula is used to determine the BTUs needed to temporarily heat a building.
This calculation is for an average uninsulated building. Add more BTUs if the building will have a great deal of heat loss from open windows and doors. Reduce the BTUs if the building is well insulated and weathertight.
Cubic Feet To Be Heated x .133 x Desired Temp. Rise = BTUs/Hour
Cubic Feet To Be Heated - Multiply the length x width x height of the area to be heated
Desired Temp. Rise - Subtract the lowest expected outside temperature from the desired inside temperature.
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