A process bath heater allows a user to indirectly heat process liquids and gasses by submersing a process coil into a heated bath solution. The bath solution is heated by a fire tube style burner submerged at the bottom of the heater vessel. Water-glycol mixtures are very common solutions for most low temperature heating applications, and can typically be used up to 250F. In some special high temperature applications salt melts can be used to meet the higher operating temperature requirements.

Sigma Thermal offers engineered process bath heaters to meet any specification. Bath heater capacities are typically limited by physical size, but can be designed as large as 40MM Btu/hr net output in a single vessel depending on the specific process requiements. Contact one of our application engineers and let us help you decide which solution is right for your project.