Products – Heaters


MAC550F Flameless Air Heater

Model: MAC550F

Product Downloads
Warranty Manual Brochure Where to Buy Find Service

Flameless Heat in a Compact Size; MAC550F Flameless Air Heater

The MAC550F flameless heater provides highly efficient heat with unprecedented safety in a nice, compact portable trailer mounted package. It combines Generac Mobile Products' industry experience with cutting edge technology and innovative design, with the safety of a flame-free heater. The MAC550F is safe to use in environments/applications where open flame heaters are restricted.

The MAC550F offers a compact heater platform mounted on a single axle trailer for ease of mobility on the job site. It is a flameless heater that provides clean, safe, and reliable air flow capable of ducting long distances with minimal loss of air pressure or outlet temperature. It offers full 110% fluid containment for safety and contamination protection on the job site. The MAC550F is comprised of rugged, heavy-duty construction inside and out, with large doors providing easy access for service, maintenance, and operation. The exterior is fully powder coated.

The MAC550F has a temperature rise of up to 180° F (82° C) and an air output volume of 1,400-3,500 cubic feet per minute at 5 inches of static pressure, delivered through two (2) 12 inch outlets. We offer simple to use, push button controls for ease of operation.

Features & Benefits



  • 448,000* BTU output
  • Output Air Volume: 1,400-3,500 CFM @ 5" static pressure
  • Fuel Rate: 3.2 gph (12.11 Lph)

* This number has been calculated using the maximum fuel consumption at the full rated horsepower as provided by the engine manufacturer.



  • Tandem axle
  • Skid mounted
  • Low fuel shutdown switch
  • Auto over speed emergency stop
  • Custom paint
  • Optional outlet duct sizes
  • Additional duct storage



  • Cold weather package
    • EON dry cell battery 1150 CCA - 4 year full warranty
    • Battery blanket
    • Fuel pre-heater
    • Insulated duct sections (25’ lengths)
  • Service/Work light packages
    • Interior LED service lights
    • Exterior work lights