Heat Wagon DG400 Direct-Fired Heater
VG400 Indirect Fired Propane Heater

400,000 BTU HS Pro Indirect Fired Propane Heater


400,000 BTU multi-purpose indirect fired (Natural Gas or Propane) heater. Provides temporary heat to construction sites, interior spaces, and outdoor events. Safe, no exposed flame, no fumes, thermostatically controlled.


  • Additional shipping charges may apply based on your location and dock availability.
  • In stock and available to ship within 24 to 48 hours.

Pro Gas Supply Package

50' gas hose, regulator, shutoff valve, tank connector

Flexible Duct Package

(2) 12" diameter x 25' length sections of high temperature duct, cuff and buckle ends


Add-ons total:


400,000 BTU HS Pro Indirect Fired Propane Heater
  • (1) 400,000 BTU Indirect Fired Propane/Natural Gas Heater
  • (1) 33′ Analog thermostat (max temp. 95 degrees F)
  • (1) Dual 12″ duct adapter
  • (1) Chimney vent pipe
  • (1) Vent cap

Product Features:

PLEASE NOTE: Power requirements are (1) 15 amp circuit breaker/standard wall outlet.  

The 400,000 BTU HS Pro Indirect Fired (Natural Gas or Propane)Heater is a highly efficient device that provides a large volume of 100% clean, dry, and fume free warm air. This indirect heater will supply your team with ducted, clean, heated air to dry paint, cure concrete, or restore entire homes from water damage. 400,000 BTU heaters are heavily used in larger construction projects and water damage restoration because of their intense thermal rise and powerful cubic feet per minute (CFM) fan output.  It is best for environments with limited ventilation like shops, event tents, mining, pipelines, exhibition halls, and construction sites. It can be used indoors with venting, or ducted in from outside using flexible ducting. If installed indoor, the flue must be vented to the outdoors by an HVAC professional.  Either way, it’s hard to beat the comfort and safety of indirect heat.

The powerful blower system can duct up to 100′ and is an ideal heating system for delivering even heat to your most challenging project. The heater has no exposed flames or fumes and is equipped with important safeties such as high limit temperature cutout switches, airflow switches, and a standard temperature thermostat to help protect your structures from unnecessary damage. 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. Heat Drying: Heater promotes rapid evaporation, and the moisture-laden air is continuously evacuated outside through strategic openings in the space; the water removal rates far exceed that of typical portable dehumidifiers. Building Heating: The heater is capable of increasing temperatures by 40 degrees in structures up to 6,250 sq. ft. with standard 8′ ceiling height; depending on factors such as building envelope, air handling units for air distribution, and other factors. Tent Heating: Since tents have lower insulation values, capacity is reduced. This heater is capable of heating up to 3,374 square feet tents with 10′ ceiling heights, raising the temperature 40 degrees above outside temps.

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. 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.

Product Specifications

Download Product Specification Sheet


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Heat Wagon DG400 Direct-Fired Heater
VG400 Indirect Fired Propane Heater