2025 Generac Mobile Mobile Heaters MFH900

Information

2025 Generac Mobile Mobile Heaters MFH900

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 may include:

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
Safe
  • 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

Photos

Highlights

  • Norton, New Brunswick
  • 2025
  • Generac Mobile
  • Mobile Heaters MFH900
  • Diesel
  • 6,590 lb (2,992 kg)
  • Available

Specifications

  • 2025
  • Generac Mobile
  • Mobile Heaters
  • MFH900
  • General
  • Perkins®
  • 120AF-E44TTA
  • 26468271
  • 4
  • 4.4 L (268.5 in3)
  • Power @ 2,200 rpm: 140.8 hp (105 kW)
  • Liquid cooled
  • 500-hr service interval
  • Diesel
  • DEF consumption rate: 0.312 gph (1.18 Lph)
  • Tires: 16 in (40.6 cm)
  • Two 12 V, 950 CCA, wet cell batteries
  • Heat produced: Up to 865,000 BTU/hr (253.5 kW/hr) | Heater efficiency: Efficiency: 85%
  • Capable of operating at -40 to 100 °F (-40 to 37.8 °C) ambient—not considering derate factors | Temperature range: 120–180 °F (48.9–82.2 °C) | -22 to 149 °F (-30 to 65 °C)
  • Maximum run time: 26 hr
  • Spin-on
  • 3,500–5,000 ft3 /min (99.1–141.6 m3 /min)
  • Pump: Rexroth 100 cc variable displacement piston pump
  • Air ducts diameter: Two 12 in (30.5 cm) | Rear storage for two 12-in×50-ft air ducts | 192.25 in (4.88 m) | 76.5 in (1.94 m) | 94.25 in (2.39 m)
  • 2-5/16 in
  • Total: 200 gal (757.1 L) | Usable: 176 gal (654.9 L) | DEF tank capacity (Total/Usable): 10 gal (38 L) / 8 gal (30 L)
  • Coolant capacity: 10.3 qt (9.75 L) | Heat transfer fluid Tank capacity: 14 gal (53 L) | Heat Transfer fluid System capacity: 20.6 gal (77.9 L)
  • Axle: One 8,000 lb (3,638.7 kg) | Operating: 7,735 lb (3,512 kg)
  • 6,590 lb (2,992 kg)
  • 110% containment | Type: Flameless, self-contained | Hydraulic oil type: Mobile DTE10 ISO VG68 | Two 10-micron hydraulic oil filters | Emergency stop switch | Positive air shutdown | Self-contained | Automatic shutdown for high hydraulic oil temperature, high hydraulic oil pressure, engine overspeed, low engine oil, low fuel, and low hydraulic oil | Fully lockable – including control box door, service access doors, fuel fill, and DEF fill | Multi-lingual operating and safety decalsDocument holder with owner’s manual – includes DC wiring diagrams | Lift jack | Electric brakes | Transportation tie downs | Forklift tubes | DOT approved lights: Tail, brakes, and directionals | Wachendorf® controller and display | TFT color graphic LCD display with LED backlight
  • Enclosure Material: Aluminum with powder coat
  • 1 year, unlimited hours