2025 Generac Power Systems Flameless Mobile Heaters MFH500
- Year 2025
- Make Generac Power Systems
- Model Flameless Mobile Heaters
- Engine Model: 4JJ1T
2025 Generac Power Systems Flameless Mobile Heaters MFH500
MFH500 Flameless HeaterThe 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 may include:
Powerful- 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
Engine
Engine Manufacturer
Isuzu®
Engine
Model: 4JJ1T
Emissions
EPA Final Tier 4
Cylinder Liners
4
Displacement
3.0 L
Engine Power
@ 2,000 rpm: 73 hp (54 kW)
Air Filter
Dry type cartridge
Aspiration
turbocharged
Cooling
Liquid cooled
Fuel System
Fuel Type
Diesel
Battery
Battery
Two 12 V, 950 CCA, wet cell batteries
Electric
Electrical
Electrical system rating: 12 V
Operational
Operating Conditions
Fuel consumption rate: 3.55 gph (13.44 Lph) | Heat produced: Up to 485,000 BTU/hr (142.1 kW/hr) | Efficiency: Up to 92%
Run Time Per Tankful
Minimum run time: 45 hr
Operating Temperature, Maximum
Capable of operating at -40 to 100° F (-40 to 37.8° C) ambient | Heater Max Temperature: 180° F (82.2° C)
Airflow
2,650–5,500 ft3 /min (75–155.7m3 /min)
Capacities
Fuel Capacity
Total: 173 US gal (654.9 L) | Usable: 160 US gal (605 L)
Cooling System
6.3 qt (6.0 L)
Weights
Dry Weight
5,540 lb (2,513 kg)
Weight, In Running Order
6,400 lb (2,903 kg)
Features
Features
Type: Flameless, self-contained | Murphy controller- PV450
Warranty
Warranty
1 year, unlimited hours