Sigma Thermal designs, engineers, supplies, and services process heating systems for industry. Our products include thermal oil and thermal fluid heating systems, indirect process bath heaters, electric process heaters, and direct fired process heaters. Our staff is comprised of dedicated and experienced industry veterans that are ready to understand your application and specific project needs. Whether you need a standard package heater, a highly engineered process heating system, or just a tune up on your current system, our Engineers have the knowledge and experience to make your project a success.Sigma Thermal is a privately held Georgia corporation founded on the belief that exceptionally deep engineering knowledge, applied practical field experience, and real customer service are the keys to successful system design and project execution. These principles form the underlying framework for our company today, and are tightly held by all Sigma Thermal employees.

Thermal Fluid Systems Direct Fired Heaters Process Bath Heaters Biomass Energy Systems Waste Heat Recovery Burner Management and Combustion Control Systems Parts Automation & Safety Systems Fired Heater Service & Maintenance Electric Process Heaters Automation & Safety Systems Fired Heater Service & Maintenance Direct Fired Convection Heaters Process Equipment Parts Direct Fired API Heaters Process Heating Systems Waste Gas to Power Conversion Emission Reduction System +Power Steam Superheating Oil and Gas Petrochemical Power Ammonia Heating Regeneration Gas Heating Process Air Heating Freeze Protection Architecture Firm/Engineering Firm Engineering Services Mechanical or Industrial Engineering