Science & EngineeringEnergy

BTU Calculator

Inputs

Yours to set. Roughly 25 for a well insulated room, 40 for typical, 70 or more for a solid-walled room with large windows, and about 100 for a conservatory.

Running cost

Results

Enter values and calculate to see results.

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Disclaimer: This calculator provides mathematical estimates based on the information you enter. It is intended for educational and informational purposes only and does not constitute professional advice. Consult a qualified professional before making financial, legal, medical or commercial decisions.