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200,000 Btu Flagro Pro Series Diesel Indirect-Fired Heater w/ 42 gal tank (77C/170F Max Space Temp)


200,000 BTU Multi-Purpose Indirect-Fired Diesel Heater with a 42 gallon fuel tank for commercial use. Provides temporary heat to structures up to 6,500 sqft or use in high-temperature applications such as off-gassing or decontamination. It can raise the temperature by 40 degrees in a 21,142 cubic foot space.

PLEASE NOTE: Additional shipping charges may apply based on your location and dock availability.



Add-ons total:



200,000 Btu Pro Series Diesel Indirect-Fired Heater Product Features:

  • Simple-to-use
  • Precise Safety and Temperature Controls
  • Onboard 42 Gallon Fuel Tank for 28 hour continuous run time
  • Excellent in Cold Climates
  • Includes a Flue Stack & 25′ Thermostat
  • 200,000 BTU Input / 185,000 BTU Output

An indirect-fired diesel heater is a common choice for climate control on construction sites, outdoor events, and other spaces requiring temporary heat or decontamination. The heater can be installed for temporary use indoors or outdoors. If installed indoor, the flue must be vented to the outdoors by an HVAC professional. The heater is capable of temporarily heating 3,500-6,500 square feet with standard 8′ ceiling height, depending on factors such as building envelope, air handling units for air distribution, and other factors. The heater is ideal for the cost-conscious consumer. The 200,000 Btu Pro Series can overcome the coldest of conditions to deliver the maximum amount of heat, which is crucial for efficient heating of a structure. The heater is equipped with backward incline blowers, which allow for ducting up to 150 feet with extremely quiet delivery of air into the structure. The 200,000 Btu Pro Series comes with a single 12” diameter discharge. The heater is able to be recirculated to boost performance in cold weather environments.

The 200,000 Btu Pro Series is indirect-fired, meaning there is no exposed flame or fumes to be concerned about. You can be assured that fresh, clean air will be delivered into the structure without the fear and concern of flames shooting out of the front of the heater. To further ensure safety, all heaters come standard with an on/off thermostat, which means you do not have to manually adjust the gas flow to control the temperature. The 200,000 Btu Pro Series control box has a supply voltage display to avoid faulty power sources. There are redundant safeties built-in to the heater, including high-temperature limit switch, airflow switch, and flame detection photocell. The body of the heater is made of heavy gauge steel, protecting the components of the heater, and surrounded by steel arms for securing the heater during transport, further safeguarding the heater from accidental damage. The heater has a 4 wheel design providing superior maneuverability. The 200,000 Btu Pro Series Diesel Indirect-Fired Heater is simple to operate and turned on by the flip of the switch.

PLEASE NOTE: Power requirements are (1) 15 amp circuit breaker/standard wall outlet. Heater requires diesel fuel, sold separately. We recommend the purchase of (1) 12″ High Temperature Duct sold in 25′ sections. 

Our professional team has made all things related to heat treatment and airflow our expertise, and we are proud to provide a wide variety of portable heaters. Our staff has completed thousands of treatments, and personally use this equipment in the field. Rest assured, you’re not just purchasing equipment, you’re getting the support of experienced professionals in the industry! Regardless of what kind of portable heater you need, we offer top quality models with all of the accessories needed for optimal performance. We have found products that offer a good balance of both effectiveness, price and are reinforced for high volume use. In addition to heaters, we can help you find the right dehumidifiers, air movers, air scrubbers, and accessories for a variety of needs you may encounter. We have strategic partnerships with manufacturers across the country and can ensure fast delivery of the equipment when and where you need it. Click to see our full line of Climate Control products.


Additional information

Weight 350 lbs
Dimensions 51.5 × 27 × 48 in
Thermostat Type:

Standard Thermostat up to 100°F (25' length), High Temp Thermostat up to 170°F (50' length)

Product Specifications

Download Spec Sheet


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