Indirect Air

Indirect Air Equipment

Our Indirect Air Systems provide FLAME-FREE climate control that satisfies air heat applications. We will match the right indirect air heater to your requirements based on the need for cfm, static pressure, temperature rise and customized distribution. Let us help you determine which of these benefit are best for your application.

Browse our available Indirect Air equipment by brand.


Frost Fighter Portable Indirect Air Heaters
Brand: ICE FROSTFIGHTER INDR500PN
Spec Sheet Download Spec Sheet
  • 450,000 btu/hr
  • Clean, Safe, Clean burning flame retention burner.
  • Independent fan and combustion air feeds ensure quick winter starts.
  • No heated air led off for combustion or lost up the flue.
  • Unlike a direct-fired heater Frost Fighter provides clean air free from moisture and contaminated fumes.
  • Quick connect ducts attach to the front cap outlets and enable the user to disburse the heated air over a large area with an optional remote thermostat control for maintaining desired temperature levels.
  • With over 35 years of proven reliability and rugged durability even in extreme climates, the Frost Fighter continues be a leader for temporary heating needs.

Frost Fighter Re-circulating Indirect Air Heaters
Brand: ICE FROSTFIGHTER INDRI 700
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  • Unlike a direct-fired heater Frost Fighters provide clean air free from moisture and fumes.
  • Option for air intake to reheat inside air to improve fuel savings over traditional indirect fired units.
  • 700,000 BTU (input)
  • Power Options: 230V single phase, 230V three phase and 460V three phase
  • 4200 CFM
  • 4” static pressure
  • 2 x 16” outlet
  • Available in natural gas, propane or diesel
  • • Fork lift pockets and lifting hooks

Frost Fighter Indirect Air Heaters
Brand: ICE FROST FIGHTER  
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  • Fully Insulated Jacket and Front Cap
  • Complete Stainless Steel Heat Exchanger
  • 3 Trials for Ignition (LP/NG unit)
  • New Industrial Style Burner
  • Increased Maximum Output
    #350 350,000 BTU
    #500 420,000- 500.000 BTU
  • Increased Temp Rise (up to 230ºF)
  • Lower Jacket Temp/Increased Safety
  • More efficient then the standard #350 & #500 OHV series (up to 20%)
  • Complete Environmental Spill Containment for Oil Fired Units
  • LED lights for polarity and burner on
  • Upgraded wheel package
  • Available with low amp motor option

Frost Fighter Indirect Air Heaters
Brand: ICE FROST FIGHTER IDF HS Series
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  • Increased Static 2.3" WC - Run up to 100' of Duct
  • Maximum 500,000 BTU
  • 3250 CFM (1½ HP Motor)
  • Up to 205ºF Temp Rise
  • Running Amps 29 (40 Amp Service)

Frost Fighter Re-circulating Indirect Air Heaters
Brand: ICE FROST FIGHTER IHS 700 Ice Fighter
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  • 700,000 BTU
  • 230/1 PH, 230/3PH, 600V & 480 Volt options
  • 4600 CFM (5 HP Motor)
  • High Temp Rise
  • 4" Static Pressure
  • 2 x 16" Outlet
  • 2 x 16" Inlet (Return Air Option)
  • 35" W x 96" L x 56" H
  • Easy Panel Access
  • Fork Lift Pockets, Lifting Hooks & Stackable
  • 1600 LBS
  • Available in Propane/Natural or Oil (Easy switchover option)
  • Oil unit is available with 175 gallon fuel tank skid mounted
  • Available with a towable trailer package with 80 hr or 70 hr running times

Frost Fighter Re-circulating Indirect Air Heaters
Brand: ICE FROST FIGHTER IHS 500 Ice Fighter
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  • 500,000 BTU
  • 230/1 PH/20 AMP or 230/3 PH/12 AMP
  • 2800 CFM (3 HP Motor)
  • 4.1" Static Pressure
  • 2 x 16" Return Outlets
  • 1 x 16" or 2 x 12" Outlets
  • 30" W x 76" L x 69" H
  • Easy Panel Access
  • Fork Lift Pockets & Lifting Hooks
  • 795 LBS
  • Available in Propane/Natural or Oil (easy switchover option)
  • Oil unit is available with 135 gallon fuel tank
  • Available with a towable trailer package with 60 hr or 70 hr running times

Frost Fighter Re-circulating Indirect Air Heaters
Brand: ICE FROST FIGHTER IHS 1250 Ice Fighter
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  • 1,250,000 BTU
  • 230/1 PH (or 460/3 PH)
  • 8,420 CFM (10 HP Motor)
  • 4" Static Pressure (w/ 3 phase wiring)
  • 2" Static Pressure (single phase wiring)
  • 3 X 16" Outlet (or 20" outlets available)
  • 107" W X 60" H X 78"L
  • Approx 4,000 LBS
  • Easy hinge door access to all controls
  • Skid mounted w/ forklift pockets
  • Available in Propane/Natural or Oil
Arctic Bear Cub™
Brand: Ground Heaters Inc. INDRC400
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  • Gross heat output (BTU/hr) 350,000-380,000
  • Net heat output (BTU/hr) 298,000-323,000
  • Diesel. NG, Propane Fuel Options
  • Air output (cfm) 5,000
  • 230v, 20a, 1ph Power requirement
  • All Arctic Bear Air Heaters offer air intake flexibility using ducted re-circulated inside air allows for improved fuel savings over traditional indirect air heaters.
  • Using cold ambient air: Uniquely designed heat exchangers offer the highest heat rise in the industry.
  • Extend the run time of Cubs 400-Optional Diesel Tanks: Cub 400: 65 US Gal.
  • Easily position your diesel tank-mounted Cubs around the jobsite with practical, integrated fork lift pockets and lift eyes.
  • The tidy design of the Arctic Bear Cubs 200 & 400 allow passage through a standard- width doorway.
  • To transport, simply extend the convenient, ergo designed pull bar, tilt the unit onto it’s wheels and roll it into place.

Arctic Bear Cub™
Brand: Ground Heaters Inc. INDRC700
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  • Gross heat output (BTU/hr) 660,000—718,000
  • Net heat output (BTU/hr) 561,000-610,000
  • Diesel. NG, Propane Fuel Options
  • Air output (cfm) 8,240
  • 230c, 30a, 1ph Power requirement
  • All Arctic Bear Air Heaters offer air intake flexibility using ducted re-circulated inside air allows for improved fuel savings over traditional indirect air heaters.
  • Using cold ambient air: Uniquely designed heat exchangers offer the highest heat rise in the industry
  • Extend the run time of Cubs 700 with optional diesel tanks: Cub 700: 125 US Gal
  • Easily position your diesel tank-mounted Cubs around the jobsite with practical, integrated fork lift pockets and lift eyes.

Arctic Bear™ HD
Brand: Ground Heaters Inc. INDRHD800
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  • 430,000 - 770,000 BTU/H
  • 240º F Temperature Rise; 210º Outlet Temperature
  • 3HP, 4000 CFM Blower @ 4.0 WC
  • 2: 145 US GAL Fuel Tanks* 75 Hours Run Time
  • Heavy Duty Indirect Fired heater
  • Engineered to operate outdoors in extreme environments up to -60º F ambient air temperature, 70 MPH wind, Blizzard, and Sleet/Ice storms.
  • DURABLE and RELIABLE: Designed to run 24/7, in extreme winter conditions.
  • HD Dura-Gen Technology, No oil changes are necessary! Just change the filter every 1,000 hours.
  • Smart design allows re-circulation of warm inside air, resulting in FUEL SAVINGS!
  • Only IDF Heater with 100% Stainless Steel Firebox & 100% Stainless Steel Heat Exchanger
  • 5-year Rust-Thru/Burn-Thru Warranty on both Firebox and Heat Exchanger
  • 1 Machine; 3 Fuel Options: Natural Gas, Propane or Diesel

Arctic Bear™ XHD
Brand: Ground Heaters Inc. INDRXHD800
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  • 430,000 - 770,000 BTU/H
  • 240º F Temperature Rise; 210º Outlet Temperature
  • 3HP, 4000 CFM Blower
  • 256 Gallon Fuel Tank 45 - 75 Hours Run Time
  • Heavy Duty Indirect Fired heater
  • Engineered to operate outdoors in extreme environments up to -60º F ambient air temperature, 70 MPH wind, Blizzard, and Sleet/Ice storms.
  • DURABLE and RELIABLE: Designed to run 24/7, in extreme winter conditions.
  • Only IDF Heater with 100% Stainless Steel Firebox
  • 100% Stainless Steel Heat Exchanger
  • 5-year Rust-Thru/Burn-Thru Warranty on both Firebox and Heat Exchanger
  • 3000 hours (125 days) Generator Oil Change Interval
  • Triple Threat™ Fluid Spill Containment
  • 100% Arctic Flex Wiring
  • 100% Arctic Fuel Hoses
  • Roll Up Door, Fork Lift Pockets, Crane Lift Eyes