Convert Boiler Horsepower to BTU per Minute
Convert Boiler Horsepower (BHP) to BTU per Minute (BTU/min) instantly and accurately.
Conversion Formula
BTU/min = BHP × 557.9166667
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.
About BTU per Minute
One BTU per minute (BTU/min) ≈ 17.58 W. Fire engineering uses BTU/min for heat release rate (HRR): a burning sofa releases 500-5,000 BTU/min; a flashover room fire 50,000-500,000 BTU/min. US commercial gas burners are rated 500-2,000 BTU/min. NFPA fire suppression standards use BTU/min to match sprinkler flow to HRR. Industrial furnace heating cycles also use this unit. 1 BTU/min = 17.584 W.
Quick Reference Table
| Boiler Horsepower (BHP) | BTU per Minute (BTU/min) |
|---|---|
| 1 BHP | 557.917 BTU/min |
| 2 BHP | 1115.83 BTU/min |
| 5 BHP | 2789.58 BTU/min |
| 10 BHP | 5579.17 BTU/min |
| 25 BHP | 13947.9 BTU/min |
| 50 BHP | 27895.8 BTU/min |
| 100 BHP | 55791.7 BTU/min |