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Cleaver-Brooks ClearFire-H Steam Boiler (horizontal)
Quiet, compact firetube steam boilers in ten sizes, using AluFer® extended-surface tubes for maximum heat transfer. Full burner modulation and high turndown with a variable-speed motor save fuel, while the linkage-free design keeps operation reliable and maintenance simple. Many models are stocked for quick shipment.




- Size range
- 10–80 HP
- Uses
- Comfort heat & process — schools, commercial buildings, apartments
- Fuels
- Natural gas and propane
- Pressure
- 150 psig (15 psig option)
- Efficiency
- Up to 85%
- Emissions
- <20 ppm NOx, <10% CO