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Explosion-Proof Heaters

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233 Series Front Image

233 Series Explosion-Proof Unit Heater

Heatrex's 233 Series Exp explosion-proof unit heater is designed with both safety and versatility in mind. Unique 233 Series features include :
  • Industry's Lowest Ignition Temperature Code Rating : T3C, 320°F (160°C)
  • Dual Over temperature Protection: With both automatic and manual reset over temperature cutouts for additional safety.
  • Nontoxic Propylene Glycol Heat Transfer Fluid
  • Low 70 PSIG Relief Valve Setting : This assures that in an emergency, the initial escaping vapor temperature remains below the 320°F (160°C) ignition temperature.
  • Corrosive Resistant Options : Heatrex offers three constructions suitable for most applications. Standard construction for use in dry ...

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Product Image - Compact Unit Heater

236 Series Compact Explosion-Proof Unit Heater

Heatrex's Compact explosion-proof unit heater is designed with both size and economy in mind. 236 Series advantages and unique features include :
  • Compact Size : This small design is only 13 inches wide, which makes it ideal for applications where limited space is available.
  • Low Cost : The Compact design offers the most economical solution for heating small Class I, Group D hazardous areas. It is a cost effective alternative to the use of explosion-proof convection heaters.
  • Redundant Over temperature Protection : Primary and secondary automatic reset thermal cutouts for additional safety.
  • Stainless Steel Construction : Provides superior corrosion resistant protection. ...

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Heatrex Convector Image

254 Series Explosion-Proof Convector

Heatrex's 254 Series explosion-proof convector is designed to provide a heavy duty and corrosion resistant heat source. Features include:
  • Wide Selection of Sizes: Four compact sizes to fit any space with ratings from 500 to 9500 watts.
  • Sloped Top Cabinet: Prevents objects from being set on top of the convector, which can restrict airflow and cause overheating.
  • Single and Three-Phase: Unique design provides single and balanced three-phase loads in a single element.
  • Gas and Dust Atmospheres: Three listings cover the entire field, two for hazardous gases and vapors and one for dust particles.
  • Wet Locations: All unit sizes available with iridite-coated ...

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Category Image - Explosion-proof Duct Heaters

Explosion-Proof Duct Heaters

Hazardous locations are those areas where a potential for explosion and fire exists due to the presence of flammable gases, vapors, pulverized dusts or ignitable fibers in the atmosphere. Hazardous locations are created from the normal processing of volatile chemicals, gases, coal, grains, etc., or from the accidental failure of storage systems for these materials.

Open flames are not permitted in these locations. The use of electric heating equipment is permitted with two major restrictions: 1) The surface temperature of the equipment cannot exceed the ignition temperature of the hazardous atmosphere and 2) all arc and spark producing devices must be isolated from the atmosphere in an appropriate enclosure.

Both people and equipment in hazardous locations can be heated safely and economically with electric heat. Electric heating is typically much less expensive to install and maintain than comparable remote oil or gas fired heating systems.

 Explosion-Proof Heaters Comparison Chart 

Explosion-Proof Heaters Comparison Chart
Explosion-Proof Heaters Comparison Chart