Any exhaust stream above 450°F, from turbines, engines, thermal oxidizers, furnaces, or process heaters, is energy you've already paid for. Our waste heat recovery units put it back to work for process heating, combustion air preheat, building heat, or power generation. The result is lower fuel use, reduced emissions, and projects that may qualify for state and federal incentives.

Choose convection-style or radiant-convective designs, including API 560-compliant systems. Coil flow path and metallurgy are engineered for your process, with row-by-row sizing for precise control of heat flux and film temperatures. Optional economizers push efficiency above 93% (LHV), and low-NOx burner options help you meet emission requirements.

Process bath heaters keep combustion completely separate from your process, making them a safe choice for gas conditioning, hydrate prevention, crude oil heating, and amine and glycol reboilers. We build water and water-glycol, salt bath, and weir bath designs, with ASME Section VIII process coils engineered for your fluid. For duties under 20 MM Btu/hr, the HC2-X thermal fluid heater offers a compact alternative to the water bath, and our engineers can help you choose.

From scheduled maintenance and energy audits to OEM replacement parts and system retrofits, our team supports your process heating equipment for its full service life. We stock parts from a range of manufacturers and help locate hard-to-source components for Sigma Thermal systems and other brands, including legacy Flaretec, GTS Energy, and Newpoint Thermal equipment. Keeping critical spares on hand is the simplest way to avoid downtime from long lead times.

Turn wood waste and other low-value biomass into process heat. Our packaged systems integrate fuel feed, a reciprocating grate furnace built for wet, high-ash fuels, ash handling, and automation controls to deliver hot gas, thermal fluid, or steam. Installation supervision, training, parts, and retrofits support your system for its full life.