Industry's Lowest Ignition Temperature Code Rating : T3C, 320F (160C)Dual Over temperature Protection: With both automatic and manual reset over temperature cutouts for additional safety.Nontoxic Propylene Glycol Heat Transfer FluidLow 70 PSIG Relief Valve Setting : This assures that in an emergency, the initial escaping vapor temperature remains below the 320F (160C) ignition temperature.Corrosive Resistant Options : Offered are three constructions suitable for most applications. Standard construction for use in dry non-corrosive areas includes : Welded steel heat exchanger; powder-coated cabinet; epoxy-coated motor. A 316 stainless steel construction suitable for Waste Water Treatment Plants includes : 316 stainless steel heat exchanger, headers and tubes with aluminum fins; stainless steel cabinet; corrosive resistance hardware; epoxy-coated motor. Third construction is suitable for use in Chemical Plants where chlorides are present and includes : corrosive resistance hardware; epoxy-coated motor.Explosion Proof Convectoin Heaters 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 elements and powder-coated frames for NEMA 3 wet locations.