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Hot-Water Generators - Water Circulation Rates
Hot water circulation through boilers - Imperial and SI-units
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The diagrams below indicates the water circulation rates through hot-water generators in imperial and SI-units.
Water Circulation - Boiler Capacity in BHP - Temperature drop in degrees Fahrenheit

- 1 gal (US)/min =6.30888x10-5 m3/s = 0.0227 m3/h = 0.06309 dm3(liter)/s = 2.228x10-3 ft3/s = 0.1337 ft3/min = 0.8327 Imperial gal (UK)/min
- 1 hp (English horse power) = 745.7 W = 0.746 kW = 550 ft lb/s = 2,545 Btu/h
Water Circulation - Boiler Capacity in MBtu/h - Temperature drop in degrees Fahrenheit

- 1 Btu/h = 0.293 W
Water Circulation - Boiler Capacity in kW - Temperature drop in degrees Celsius

- 1 kW = 3,412 Btu/h = 1.341 British hp
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Related Topics
- Combustion - Boiler house topics - fuels like oil, gas, coal, wood - chimneys, safety valves, tanks - combustion efficiency
- Heating - Heating systems - capacity and design of boilers, pipelines, heat exchangers, expansion systems and more
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