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The TPB Immersion Gas Fired Series of hot water boilers (20 HP to 125 HP) is well known throughout the industry for its unique SMALL footprint from a compact two-pass firetube design and burner technology. The two pass immersion gas fired firetube design delivers premixed air and gas through multiple burner nozzles. A corresponding flue tube (“firetube”), completely immersed in liquid, is aligned with the nozzle head inside the combustion chamber. Upon combustion, the nozzles generate a focused, high velocity flame which radiates down the center of each tube. The benefits of the technology in the TPB Immersion Gas Fired Firetube Series hot water boilers include:
Natural Efficiency
- Up to 84% efficiency
- Two-pass design captures additional flue gas heat after heating primary surface
- Fueled by natural gas, LP gas, or Biogas
- Full load of hot water within 14 minutes!
Compact Design Saves Space
- Utilizes the same single-pass immersion technology
- Very compact footprint ( sizes 24 sq. ft. to 42 sq.ft)
Low Maintenance Cost and High Longevity
- Elimination of thermal shock due to balanced heat transfer across primary heating surface; allowing for up to 150° F ΔT
- Backed by a 20-year non-prorated thermal shock warranty
Ease of Maintenance
- Hinged door provides quick access to burners, manifold and heating tubes for easy cleaning and routine maintenance
- No refractory; thereby, eliminating annual maintenance and replacement costs !
- Trimmed with non-proprietary components
Simplicity of Design
- No complex controls which require intensive training
- Fewer moving parts reduces incidence of failure and required retuning
- UL packaged
Low NOx Emissions
- Less than 30ppm NOx
Engineering data from the previous website can be found at: http://www.sellersengineering.com/engdata.asp . CAD drawing and design templates from the previous website can be found at: http://www.sellersengineering.com/producttemp.asp
Hot Water Boiler - TPB Immersion 8201 Series Gas Fired Specifications
- Two-pass horizontal fire tube boiler
- Combustion: Sealed
- Heat Exchanger: Steel tubes
- Input Range: 20 – 125 HP (0.8 – 5.2mmBTU)
- # of Standard Unit Sizes: 8
- NOx Rating: 30ppm
- Standard Efficiency: 84%
- Certifications: ASME “H" stamp, UL
- Warranty: 1-year (parts)/ 20-year (shell)
- Fuels: Natural gas, propane, biogas
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