Products – Heaters


MAC800G Indirect Fired Heater

Model: MAC800G

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About the MAC800G Indirect Fired Heater

The MAC800G is our most popular design yet. The MAC800G offers 800,000 BTU’s per hour (235 kW) of heat in a midsize heater platform mounted on a single axle trailer for ease of mobility on the job site. It is an indirect diesel fired heater that provides clean, safe, and reliable air flow capable of ducting long distances with minimal loss of air pressure or outlet temperature. The MAC800G is comprised of rugged, heavy-duty steel construction inside and out. Large doors provide easy access for service, maintenance, and operation.

The MAC800G has a temperature rise of up to 180° F (82° C) and an air output volume of 3,900 cubic feet per minute at 3 inches of static pressure water column, delivered through two (2) 12 inch (304 mm) outlets. The heat exchanger is designed and constructed of stainless steel. We offer simple to use, push button controls for ease of operation.

Features & Benefits



  • 800,000 BTU/hr (235 kW)
  • Output Air Volume: 3,900 cfm @ 3" of static pressure w.g. (6,626 m³/hour)
  • Normal Operating Fuel Rate: 5.7 gph (21.6 lph)
  • Burner fuel source
  • Diesel (Standard)
  • Trailer mounted 
  • Single axle 



  • Burner fuel source
    • Propane
    • Natural gas
  • Tandem axle
  • Skid mounted
  • Custom paint
  • Optional outlet duct sizes
  • Additional duct storage
  • 20 Gallon engine oil crankcase
  • LEL Sensor-75 gas detection
  • External fuel connections
  • Exterior mounted fire extinguisher
  • GPS package



  • Sound abatement package
    • Reduced air intake sound
    • Improved efficiency
  • Service/Work light package
    • Interior LED service lights
    • Exterior LED work lights
  • Cold weather package
    • Heavy duty battery, EON dry cell, 1150 CCA, 4YR warranty
    • Battery blanket
    • Fuel pre-heater
    • Insulated ducting