Sellers Fire tube boilers were originally designed to solve the problems that are inherent to the traditional scotch marine boiler design. All firetube boilers distribute energy through a collection of water-backed tubes to enable heat transfer. The Sellers Boiler is innovative in how it distributes that energy at the point of combustion, rather than a turnaround chamber. Uniform application of combustion energy eliminates thermal shock and allows relief of any possible energy buildup in the vessel through a rear relief door, which is unique in the industry.
In a traditional Scotch Marine Boiler, by contrast, 100% of the combustion energy feeds into the furnace. Because of its design flaws, the scotch marine boiler still presents the risk of thermal shock, resulting in a myriad of associated issues that will ultimately require significant maintenance and loss of operation time.
