HVAC BTU Calculator
Estimate heating or cooling capacity in BTU/hr from room size, ceiling height, climate, occupants, and kitchen load.
Calculation Mode
Room Details
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Enter room dimensions or area, ceiling height, and climate conditions to estimate required BTU/hr. Use it for planning conversations, not as a substitute for a full load calculation.
When to Use a BTU Estimate
BTU estimates help you sanity-check equipment sizing before quoting a replacement or addition. Final equipment selection should still follow proper load calculations and local code requirements.
Common Questions
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