TPW Immersion Fired Series

The TPW Immersion Fired Series of water heaters is well known throughout the industry for its unique compact two-pass design and burner technology. Available in both high pressure and low pressure steam, the two pass immersion 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 this technology in the TPB Immersion Fired Series steam boilers include:

 Natural Efficiency

• Up to 86% efficiency
• Two-pass design captures additional flue gas heat after heating primary surface

 Compact Design Saves Space

• Utilizes the same single-pass immersion technology
• Very compact footprint

 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
• 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

 Low NO_x and CO Emissions

• Less than 30ppm NOx
• Less than 50ppm CO

_{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}