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CAT CLASS: 0100225

400-499K BTU Diesel/Oil Indirect Fired Heater


Indirect-fired heaters are typically installed outside a structure with ductwork drawing the heated air inside the facility. This heater type works similarly to a home furnace by forcing outside air through a heat exchanger and into the space while diverting products of combustion outside of the space through a chimney. This IDF-series heater has a BTU range of 400,000 to 499,000 and features a stainless-steel combustion chamber which keeps combustion air separate from the heated discharge air.


Products are subject to availability.

Make Temp Air
Model IDFO-400
Burner Input 390,000 BTU/Hr
Fuel Type Diesel
Max Airflow 4,000 CFM
Overall Dimensions 70"L x 29"W x 52"H
Power Source 115/1/60/15
Weight 450 lbs

Safety information

Safety Requirements
  • Gloves