RXDF - Explosion-Proof Duct Heater Explosion-Proof Duct Heater

The Ruffneck™ RXDF Explosion-Proof Duct Heater is designed for heating air or gases in hazardous environments where potentially explosive substances are present, such as oil refineries, coal mines, petrochemical plants and sewage treatment plants. They use heavy walled carbon steel finned tubular (Calrod® Type)* elements with nickel plated finish to provide safe, efficient, low temperature heat transfer.


  • Certified for use in hazardous locations
  • Designed for use in commercial comfort heating applications where potentially explosive substances are present
  • Heavy walled, nickel plated, finned tubular element provdies safe, efficient, low temperature heat transfer
  • Factory installed high limit sensing thermocouples for overheat protection


3 standard sizes range from 2.5-50kW and 208-600V; single or double banked heating modules available
painted steel duct with mounting holes for attachment to the duct section; approved for mounting in horizontal duct section
patented x-Max® terminal housing for easy access to wiring terminal connection
differential pressure switch
factory-installed high limit sensing thermocouples
optional features include transition sections, stainless steel duct section, mechanical temperature control, special temperature code, outlet air thermostat and outlet air thermocouple
available with T2D, T3A or T3B hazardous area temperature codes
CSA C/US approved