Convert BTU per Hour to Boiler Horsepower
Convert BTU per Hour (BTU/h) to Boiler Horsepower (BHP) instantly and accurately.
Conversion Formula
BHP = BTU/h × 2.987303958e-5
About BTU per Hour
One BTU per hour (BTU/h) ≈ 0.2931 W - the dominant HVAC capacity unit in the US and Canada. Room air conditioners are universally rated in BTU/h: 12,000 BTU/h = 1 ton of refrigeration = 3,517 W. Home furnaces range from 40,000-150,000 BTU/h. Office building cooling demand is calculated in BTU/h per ft². Engineers convert: BTU/h × 0.2931 = W; or W × 3.412 = BTU/h. 1 BTU/h = 0.29307 W.
About Boiler Horsepower
One boiler horsepower (BHP) ≈ 9,810 W = 33,475 BTU/h - the power to evaporate 34.5 lb of water per hour at 212°F, standardised by ASME for rating steam boilers. A small office building needs 10-50 BHP; a hospital or large plant 200-2,000 BHP. Critically, 1 BHP is ~13.1× larger than 1 mechanical horsepower (746 W) - a dangerous confusion when specifying heating equipment. 1 BHP ≈ 9,810.6 W.
Quick Reference Table
| BTU per Hour (BTU/h) | Boiler Horsepower (BHP) |
|---|---|
| 1 BTU/h | 2.987 × 10-5 BHP |
| 2 BTU/h | 5.975 × 10-5 BHP |
| 5 BTU/h | 0.000149365 BHP |
| 10 BTU/h | 0.00029873 BHP |
| 25 BTU/h | 0.000746826 BHP |
| 50 BTU/h | 0.00149365 BHP |
| 100 BTU/h | 0.0029873 BHP |