Explosion-Proof HVAC Units

Tru-Temp™ Explosion-Proof HVAC Units

Northern Air Systems Tru-Temp™ Explosion-Proof HVAC Units are designed and custom-built for the highest reliability. Explosion-Proof HVAC Units are available to meet both Class 1, Division 2 and Class 1, Division 1 hazardous location codes, as well as N.E.C. and I.E.C. compliant codes.


  • Hazardous Locations
  • Extreme Environments
  • Marine Duty


Rugged construction provides dependable heating and cooling for 24-hour operation under high load demands and in the most demanding and extreme environments. Our Explosion-Proof Wall Units, Split Systems, Chiller Systems, Roof Top Units are used all over the world in the Oil & Gas industry and in hazardous locations.


  • Power Disconnect Switch
  • Electric Heat
  • Stainless Steel Housing
  • Corrosion Protection on Metal and/or Coils
  • Copper Fins
  • Copper Tube Coils
  • Supply Air Grille
  • Return Air Grille
  • Purge & Pressurization
  • Chemical Filtration

Optional Certifications

  • Classification of Class1, Groups B, C & D, Division 2. NEC, IEC and ATEX
  • Zones I and II
  • Third Party Certification Available
  • Marine Duty
  • Unsurpassed Quality Construction