Restroom Calculator

Need an estimate for how many porta potties your event needs? Use this handy calculator! For a more specific quote tailored to your needs, call us today at 800-210-8407!

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IX405 Indirect Fired Heater



Input400,000 BTU/hr
FuelVapor Propane/ Natural Gas
Gas Consumption4.4 GPH LP/ 400 CFH NG
Gas Connection3/4” FNPT
Electrical120 Volts 12 amp circuit
Fan5,000 CFM
Temp Rise250°F @ 0°F Ambient
Dimensions29″W x 82″L x 59″H
Weight560 lbs.

The IX405 Indirect Fired Heater from On Site Companies is the perfect solution to provide clean enclosed flame heat to your job site. This dual fuel heater can be changed between propane and natural gas for optimal use. The IX405 is also equipped with a safe fuel shutdown system that will shut off the equipment if combustion air is interrupted and will also shut down if the voltage is too low or if the unit is being overfired.


  • 16” puncture proof wheels for easy maneuverability

  • Designed with return air recirculation for increased fuel savings

  • Remote thermostat

  • Highest temperature rise and fan rating among other 400K IDF models

  • Dual fuel: LP/NG

  • Two 12” ducts

Available in:

  • Minneapolis/ St. Paul, Minnesota
  • Rochester, Minnesota
  • Mankato, Minnesota
  • St. Louis, Missouri

Related Products

On Site Companies can offer you a wide range of portable toilet and sanitation solutions to serve your needs.


I have a special event with an estimated attendees, for hours.
  • Will there be more women than men?
  • Will there be alcohol served?