True Dual SMTS 2-Stage

304 Stainless Steel Heaters Resist Wet, Humid, and Corrosive Environments

Two-stage 304 stainless steel tube heater for the harsh environment applications. Perfect for indoor and outdoor applications such as animal confinement, shipping & receiving docks, and service garages applications, specifically those in harsh or corrosive environments. More information below.

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Harsh Environment 2-Stage Radiant Heater
  • Two-stage operation with both gas and air modulated for high and low heat
  • 16 gauge titanium coated aluminized steel, heat-treated, combustion chamber
  • Corrosion resistant 16 gauge 4" O.D. aluminized steel, heat-treated, heat exchanger
  • Rugged 304L stainless steel reflectors and tube clamps
  • 304L stainless steel burner and blower motor housing and cover
  • Simple chain mounting
  • CSA International Design Certified to ANSI/CGA Standards
  • 91.7% reflectional efficiency (shape)
  • Rotatable reflector arrangements from 0° to 45°
  • Each reflector rotates independently
  • Burner fully assembled and tested – ready to hang
  • Factory installed wave turbulator for high efficiency

Safe, reliable operation

  • Durable direct spark ignition
  • 100% safety shut-off
  • Pre and Post-purge cycle for safety
  • System validation light


  • Recessed Ceiling Kit
  • Side Reflector
  • 90° Elbow with Reflector
  • Common Vent Couplers
  • Inlet and Exhaust Kits
  • 50Hz for Worldwide Operation
  • Aluminized Steel and Black Steel Construction

Manifold Operating Pressure 
Natural Gas and LP/Propane: 5 inches WC

Minimum Inlet Pressure 
Natural Gas: 7 inches WC LP/Propane: 11 inches WC

Maximum Inlet Pressure 
Natural Gas and LP/Propane: 14 inches WC1/2 inch FPT Gas Inlet

Electrical Rating 
120 VAC – 60 Hz – 1 Phase 2.30 max. amp. draw at 138 cfm/free air

10 year limited warranty on Burner Core
5 year limited warranty on All Combustion and Heat Exchanger tubes
1 year limited warranty on All Burner Controls

  • Maintenance Facilities
  • Manufacturing Plants
  • Aircraft Hangars
  • Auto Dealerships
  • Sports Facilities
  • Farm Buildings
  • Loading Docks
  • Warehouses
  • Fire Stations
  • Car Washes
  • Body Shops