Compared to bare pipes, BROWN FINTUBE® tank heaters induce stronger thermal currents in the tank. Product next to the fintube rapidly heats and rises due to its lowered specific gravity, creating a thermal siphon effect. This contributes to a higher rate of heat transfer. Sedimentation is minimized as the tank contents are agitated and particles remain in suspension. As a result, heating surfaces tend to be self-cleaning, and sludge is reduced.