BTU Calculator
How to Use
- Enter room area and select unit system.
- Optionally adjust ceiling height and insulation level.
- Click Calculate to see recommended BTU range.
- Copy the result or download JSON.
FAQ
Is this for cooling or heating?
The estimate is a general BTU sizing guide and can be used for both.
Is this an exact recommendation?
No. Use it as a starting point; actual needs depend on climate and building specifics.
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