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Generac Mobile Products

MAC800G Indirect Fired Heater

generac mac800g mobile indirect fired heater

The most popular in our line of indirect fired heaters, the MAC800G offers the high level of efficiency and reliability that you expect from a Generac on a midsized, portable trailer. With 200 feet of ducting standard, this heater provides clean, safe air flow to anywhere that you need heat.


  • 800,000 BTUs
  • Air output volume of 3,900 CFM, delivered through 2-12 inch outlets
  • Temperature rise of 180?
  • Static pressure: 3 inches
  • EPA Tier 4 Isuzu engine
  • 5.7 GPH normal operating fuel rate
  • Single axle trailer

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