Flameless Heater MFH900

MFH900 Flameless Heater

The MFH900 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. The MFH900 includes a brand new design for enhanced safety, serviceability and ease-of-use.

Features & Benefits


  • 4.4 L Perkins® engine, FT4
  • 865,000 BTU output*
  • Max temperature output 180°  F (82° C)
  • 88%+ heater efficiency
  • Hydraulic pump loop generates reliable heat in ambient temperatures down to -40° F/C
  • Rust-proof aluminum enclosure
  • 26-hour run time on one fuel and DEF fill


  • Flameless technology produces heat without an open flame
  • Safe to use in hazard zones in which ignitable fumes may be present
  • External E-stop switch for emergency situations
  • External duct connection lighting for enhanced safety
  • 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

  • New, easy-to-use intuitive controller
  • Dual outlet ducts allow for separate duct runs and more versatile heating
  • Internal duct storage for convenience, ease-of-transport and theft prevention
  • Choice of one or two duct outlets
  • Single axle trailer for increased maneuverability
  • Roof strobe light indicates operating unit
  • Wide access doors flip up for easy, unobstructed access to maintenance items
  • Interior cabinet lighting for enhanced visibility during maintenance


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File Type Manual (PDF) Item Number Download


Type: Indirect Fired

Heat (BTU): 865000

CFM: 0

Static Pressure: 5