Convert BTU per Second to Boiler Horsepower
Convert BTU per Second (BTU/s) to Boiler Horsepower (BHP) instantly and accurately.
Conversion Formula
BHP = BTU/s × 0.1075429425
About BTU per Second
One BTU per second (BTU/s) ≈ 1,055 W - close to 1 kW but slightly larger. Used when heat rates are so high that per-hour or per-minute numbers become unwieldy. In fire protection engineering, large house fires peak at 500-2,000 BTU/s; industrial fires at millions of BTU/s. Blast characterisation for petrochemical safety and large industrial heat exchangers with duties of millions of BTU/h are conveniently expressed in BTU/s. Since 1 BTU/s ≈ 1.055 kW, conversion to SI is straightforward. 1 BTU/s = 1,055.056 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 Second (BTU/s) | Boiler Horsepower (BHP) |
|---|---|
| 1 BTU/s | 0.107543 BHP |
| 2 BTU/s | 0.215086 BHP |
| 5 BTU/s | 0.537715 BHP |
| 10 BTU/s | 1.07543 BHP |
| 25 BTU/s | 2.68857 BHP |
| 50 BTU/s | 5.37715 BHP |
| 100 BTU/s | 10.7543 BHP |