These heaters have a large surface area to quickly dissipate heat in air and inert gas heating systems used in ducts, ovens, and dryers. They have a 304 stainless steel heating element that resists corrosion and moisture. All heaters require a temperature switch or controller (sold separately) to regulate heat output.

For technical drawings and 3-D models, click on a part number.

Often installed below windows, the low profile design keeps these heaters out of the way. They use convection to circulate warm air.

The housing has indentations to punch your own mounting holes.

When operating the 208V AC/240V AC heaters at 208 volts AC, maximum area heated and heat output are reduced by 25%.

Heater-mount thermostats are sold separately.

Use where flammable gases and vapors are present—these heaters meet NEC Class I, Divisions 1 and 2, Groups C and D. They use convection to circulate warm air in small spaces. All have a built-in thermostat.

Radiate heat inside narrow spaces to keep equipment warm and dry. These slim heaters fit where standard ones don’t. They protect equipment from premature failure caused by cold, condensation, and humidity.

Heaters without built-in control require a temperature switch or controller (not included) to regulate the heat they put out.

Heaters with a thermostat automatically turn on and off to maintain the set temperature range. Heaters with a nonadjustable thermostat have a set range that you cannot adjust. Those with an adjustable thermostat have a dial to manually change the temperature range.

Heaters with a steel cover guard against damage and prevent you from accidentally touching the heater.

For technical drawings and 3-D models, click on a part number.