Product Details
Ruffneck™ FX6 heaters are CULUS-certified for use in hazardous locations and are specifically designed for harsh environments such as dry indoor industrial applications, oil refineries, petrochemical plants, pulp and paper mills, grain elevators, hazardous waste storage facilities, and wastewater treatment plants, where specific explosive gases or dust may be present. These heaters operate efficiently in extreme conditions with low ambient temperatures as low as -58°F (-50°C). The FX6 features a larger junction box for easier installation, additional limit controls, and a heavy-duty core, with standard two levels of pressure and thermal protection for enhanced safety and reliability. The heater core assembly is housed in a robust, epoxy-coated 12-gauge steel cabinet that contains the motor and fan assembly, while adjustable louvers allow for directional airflow control. A narrow gap, two-piece fan guard protects all moving parts, and all fasteners are zinc plated to prevent corrosion. The heaters have a hazardous location rating of Class I, Divisions 1 and 2; Groups C and D; Class II, Groups E, F, and G; Class II Division 2, Groups F & G; Class I Zones 1 & 2, Groups IIA & IIB, with a temperature code of T3B [329°F (165°C)]. Enclosures are rated NEMA Type 7 & 9, suitable for dry indoor use only, and should not be immersed in water or used in areas exposed to rain or snow. Backup overpressure protection is standard on all models, with the current unit supporting low ambient operation.








