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TFD-IG
Air Curtain

Ten-Fourteen Door (TFD-IG) Indirect Gas Heated Air Curtain

Indirect Gas

The Indirect Gas Fired air curtain works like your typical home furnace. The flame heats a tube, the air flows over the tube and the heated air is discharged. This air curtain will provide up to a 35 ̊F temperature rise at the threshold. Not only will this model prevent cold air from infiltrating the opening, it will help keep door hinges from freezing, keep the floor dry, help keep employees comfortable and promote safety and productivity. Indirect gas heaters used are certified by the American Gas Association (AGA). Standard equipment includes power-vented flues, spark-ignited pilots, stainless steel duct transition and stainless steel air curtain housing.

Get Unit Specs
TFD-IG - Ten-Fourteen Door (TFD-IG) Indirect Gas Heated Air Curtain

Unit Sizing

Unit Width:
4' to 14'
Motor:
1.5 HP
Mount Type:
Exposed
Max Install Height:
14'
Wind Stoppage Ability:
= 18.2mph
Thumbnail View 1 | TFD-IG - Ten-Fourteen Door (TFD-IG) Indirect Gas Heated Air Curtain
Thumbnail View 2 | TFD-IG - Ten-Fourteen Door (TFD-IG) Indirect Gas Heated Air Curtain
Thumbnail View 3 | TFD-IG - Ten-Fourteen Door (TFD-IG) Indirect Gas Heated Air Curtain

Key Design Features

  • Outer cabinet constructed of 18-gauge 304 stainless steel with #3 finish
  • 1.5 HP TEAO (Totally Enclosed Air Over) direct-drive single-speed motor(s)
  • High-efficiency discharge plenum with adjustable air foil vane (+/-20˚)
  • Top and bottom access panels for servicing and removal of motor-blower assembly
  • NEMA 12 control panel
  • Factory mounted 18-gauge 304 stainless steel transition duct(s)
  • AGA/CGA labeled gas heater(s) with power exhaust, direct spark ignition, and tubluar heat exchangers
  • Convertible open and closed combustion
  • Natural gas or propane fuel types
  • Standard single point power connection

Air Curtain Controls

  • Activation by 24V magnetic door switch
  • Toggle disconnect switch
  • Hand/Off/Auto selector switch
  • Heat On/Off selector switch
  • Digital thermostat

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360 View | TFD-IG - Ten-Fourteen Door (TFD-IG) Indirect Gas Heated Air Curtain

Cost Savings Calculator

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Air Curtain Selector

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TFD-IG Air Curtain Downloads

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Individual Files

TFD-IG Air Curtain | Performance Table
MODEL Nozzle
Width (in.)		 Max. FPM
at Nozzle		 Avg. Outlet
Velocity FPM		 CFM at
Nozzle		 Outlet Velocity
Uniformity		 Power
Rating (kW)		 Number of
Motors		 Motor
HP		 Sound
Levels
(dBA)*		 Number
of
Heaters		 Input
mbtu/hr
per Heater		 Output
Total
mbtu/hr		 Temp.
Rise (°F)		 Weight
(lbs.)
TFD-1-36IG 36 4500 3108 2331 92.0% 1.2 1 1.5 73 1 100 80 32 279
TFD-1-48IG 48 4500 3565 2565 94.0% 1.3 1 1.5 76 1 100 80 29 330
TFD-1-60IG 60 4500 2146 2682 73.0% 1.3 1 1.5 69 1 100 80 28 408
TFD-2-72IG 72 4500 3108 4662 92.0% 2.4 2 1.5 76 1 200 160 32 605
TFD-2-84IG 84 4500 2798 4896 92.0% 2.6 2 1.5 79 1 200 160 20 647
TFD-2-96IG 96 4500 2565 5130 94.0% 2.6 2 1.5 79 1 200 160 29 698
TFD-2-108IG 108 4500 2332 5247 73.0% 2.6 2 1.5 79 1 200 160 28 748
TFD-3-108IG 108 4500 3108 6993 92.0% 3.6 3 1.5 77 2 150 240 32 813
TFD-3-120IG 120 4500 2891 7227 92.0% 3.7 3 1.5 80 2 150 240 31 825
TFD-3-132IG 132 4500 2713 7461 92.0% 3.8 3 1.5 80 2 150 240 30 1048
TFD-4-144IG 144 4500 3108 9324 92.0% 4.8 4 1.5 79 2 200 320 32 1163
TFD-4-156IG 156 4500 2941 9558 92.0% 4.9 4 1.5 82 2 200 320 31 1252
TFD-4-168IG 168 4500 2798 9792 92.0% 5.0 4 1.5 82 2 200 320 30 1294
TFD-IG Air Curtain | 1-Heater Mechanical Table
MODEL Air Curtain
Width (in.)		 Mounting
Width (in.)		 Hanging
Width (in.)		 Flue
Diameter (in.)		 Heater
Size		 Gas Inlet
(in.)
TFD-1-36IG 39 37.5 18.63 5 150 0.5
TFD-1-48IG 51 49.5 18.63 5 150 0.5
TFD-1-60IG 63 61.5 18.63 5 150 0.5
TFD-2-72IG 75.07 73.57 48.63 6 300 0.75
TFD-2-84IG 87.07 85.57 48.63 6 300 0.75
TFD-2-96IG 99.07 97.57 48.63 6 300 0.75
TFD-2-108IG 111.07 109.57 48.63 6 300 0.75
TFD-IG Air Curtain | 2-Heater Mechanical Table
MODEL Air Curtain
Width (in.)		 Mounting
Width (in.)		 Hanging
Width (in.)		 Flue
Diameter (in.)		 Heater
Size		 Gas Inlet
(in.)
TFD-3-108IG 111.15 109.65 30.63 5 2 × 200 0.5
TFD-3-120IG 123.15 121.65 30.63 5 2 × 200 0.5
TFD-3-132IG 135.15 133.65 30.63 5 2 × 200 0.5
TFD-4-144IG 147.22 145.72 30.63 5 2 × 250 0.75
TFD-4-156IG 159.22 157.72 30.63 5 2 × 250 0.75
TFD-4-168IG 171.22 169.72 30.63 5 2 × 250 0.75