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Cleaver-Brooks
PROFIRE® NTH burners

PROFIRE® NTH burners

Product catalog summary

Overview: The ProFire NTH burners are designed with ultra-low NOx technology to meet stringent emissions requirements, offering capacities from 1.5 to 12.5 MMBtu/hr and achieving NOx levels below 9 ppm. These burners are suitable for firetube, firebox, and commercial watertube boilers.

Key Features:

Induced FGR System: Includes a modulating valve and shutoff valve for precise control.
Parallel Positioning: Available for optimal control across the firing range.
Fuel Options: Compatible with gas, #2 oil, and combination fuels.
Rotary Air Damper: Ensures precise fuel-to-air ratios.
Hinged Air Housing: Facilitates easy access to internal components.
Gas Injectors: Feature a low-NOx, lance-style, hammerhead design.
Backward-Curved Impeller: Provides adequate combustion air and maintains balance by preventing dust accumulation.

Specifications:

Burner Sizes: Range from 15 to 125, with gas inputs from 1,500 to 12,500 MBtu/hr and oil inputs from 32 to 89 US gph.
Boiler Horsepower: Capable of supporting up to 299 HP at 80% efficiency.
Motor Requirements: Varying blower motor HP and compressor motor HP based on burner size and NOx levels.
Pressure Requirements: Minimum gas pressure of 4-6 PSI, with specific furnace pressure requirements for different NOx levels.

Operational Considerations:

For altitudes above 2,000 feet, capacity should be derated by 4% per 1,000 feet.
If furnace pressure exceeds listed values, capacity should be derated by 5% for every 1/2" w.c. of excess pressure.
Consult the factory for specific applications, especially for oil and high-altitude operations.

Company Information: Cleaver-Brooks offers complete boiler systems, ensuring total integration from fuel inlet to stack outlet, with over 80 years of innovation and engineering expertise.

Catalog excerpts

PROFIRE NTH burners ® 1.5 TO 12.5 mmbtu/hR Ultra Low NOx technology for the most stringent emissions requirements.

Open the catalog to page 1

Ultra-Low-NOx Configuration The ProFire NTD was designed and developed with a Flue Gas Recirculation (FGR) system which has proven to be the benchmark in the industry, the C-B ProFire NTH burner is capable of firing up to 300 HP firetube and watertube boilers. The ProFire NTH features an advanced design impeller with backwards-inclined vanes. Unlike ordinary forward-curved impellers, the backward incline design does not allow for dust to collect on the vanes, thus allowing the impeller to maintain its original balance while supplying combustion air. A special air intake box with a rotary air...

Open the catalog to page 2

Total integration doesn’t stop with the burner. Only Cleaver-Brooks offers complete boiler systems, from fuel inlet to stack outlet, that are completely designed, engineered, manufactured, integrated, and serviced by one company. That integration starts with the burner, and Cleaver-Brooks has been perfecting this integral element of the boiler system through innovation and expert engineering for more than 80 years. Packaged Burner Systems 351 21st Street, Monroe, WI 53566 USA 608.325.3141 • [email protected] cleaverbrooks.com Printed in the USA ©2011 Cleaver-Brooks, Inc CB-8445 05/12

Open the catalog to page 4

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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