Sigma Thermal, Inc.

Radiant–Convective Heater

A radiant–convective style heater is the most well-known and commonly used style of direct fired heater. These heaters utilize a bare tube radiant zone in combination with a bare / finned convection section. Vertical cylindrical, A-frame, and cabin style are the most common configurations. Sigma Thermal offers all types of radiant–convective heater designs including API 560 compliant systems.