HVAC comparison

BTU vs kW

Both can describe heat-transfer rate, but the label context matters.

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Quick answer

BTU/h and kW are convertible capacity units: 1 kW equals about 3,412 BTU/h. Neither value alone states electrical consumption.

Comparison table

FactorBTU/hkW
Typical useNorth American capacity labelsSI-oriented specifications
Relationship3,412 BTU/h1 kW
Check neededCapacity versus inputThermal capacity versus input

Use the label context

A cooling-capacity kW value can be converted to BTU/h. Electrical kW input must not be treated as cooling capacity without equipment performance data.

FAQ

Is kW on an HVAC label always electrical input?

No. Read the heading and manufacturer documentation to determine whether it states thermal capacity or electrical input.

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