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The form below allows you to estimate the amount of BTUs required to heat a room. The calculation is based on a normally insulated home in a temperate climate zone such as the Mid Altantic States. Note: This is a general guide only - Consult your heating professional for more accurate heat load calculations.

Number of Exterior Walls in the room -
1 2 3
Room Height in feet
Room Width in feet
Room Length in feet
Square feet of exterior door area
(note: most exterior wood doors are 20 sq. ft )
Total Window Area in square feet
Is there a Fireplace in the room?
yes -> no - >