Flameless Heater MFH500

MFH500 Flameless Heater

The MFH500 flameless heater provides safe and reliable heat for Oil and Gas, Mining, Construction, Utility projects and more. Generac Mobile's flameless heat technology delivers heat without an open flame for use in hazard zone areas in which ignitable flames may be present.

Features & Benefits


  • 3.0 L Isuzu® engine, FT4
  • 475,000 BTU output*
  • Max temperature output 180° F (82° C)
  • 90%+ heater efficiency
  • Hydraulic pump loop generates reliable heat in ambient temperatures down to -40° F/C
  • 44-hour run time on one fuel fill


  • Flameless technology produces heat without an open flame
  • Safe to use in hazard zones in which ignitable fumes may be present
  • Comprehensive safety alarms and shutdowns
  • Positive air shutdown to prevent runaway engine
  • Lockable cabinet to prevent tampering and theft
  • 110% containment of engine fluids
  • DOT and Transport Canada compliant

Easy to Use

  • Single-point controls
  • Dual outlet ducts allow for separate duct runs and more versatile heating
  • Internal duct storage for convenience, ease-of-transport and theft prevention
  • Single axle trailer for increased maneuverability
  • Roof strobe light indicates operating unit
  • Interior cabinet lighting for enhanced visibility during maintenance
  • No DEF required


For the most accurate results, enter your serial number.

File Type Manual (PDF) Item Number Download


Type: Flameless Air

Heat (BTU): 475000

CFM: 0

Static Pressure: 5