Duct Heaters

Constructed of sturdy 0.430 inch (11 mm) diameter WATROD heating elements mounted to a 1⁄4 inch (6 mm) thick steel flange, duct heaters are easily adapted to many non-pressurized, air-heating systems. They are easily installed in applications requiring a wide range of temperature vs. air flow combinations.

• Installation flexibility— no flues or fuel lines.
• 100 percent energy efficient—no energy loss up the flue.
• Universal availability of electricity.
• Resistance coil in Incoloy® sheath is protected from corrosive environments.

Modular Duct Heaters

Watlow has developed a line of process air heaters that offer improved performance and increased versatility in medium to low temperature applications. The duct heaters are modular and consist of two parts. The first is a 6kW heater available in either 240V or 480V, single or three phase. The second part of the heater consists of the electrical housing that protects each module's termination area. A main flange bolts into the user's ductwork. The heater modules are installed in the housing and main flange via rectangular slots int he main flange. The range of modules can be accommodated in various duct heater assemblies, range from 1-10 modules. a range of 6-60kW, in 6kW increments is achieved.