Disclaimer

HVAC Calculators provides BTU and mini-split sizing estimates for informational and planning purposes only. Results depend on the measurements and settings you enter. Actual heating and cooling loads vary with construction, air leakage, ductwork, altitude, and equipment efficiency.

This tool is not a Manual J load calculation, Manual S equipment selection, or engineering report. We are not responsible for oversizing, undersizing, comfort issues, energy costs, or equipment failures arising from use of these estimates. Always verify sizing with a licensed HVAC contractor before purchasing and installing equipment — permits and code compliance may apply.

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By using HVAC Calculators, you agree that you use the tool at your own risk and that professional load calculation and installation are recommended for all permanent HVAC work.