TSD-3-156IG Air Curtain

Twelve-Seventeen Door • 3 Motors • 156" Wide • Indirect Gas

TSD-3-156IG Air Curtain
TSD-3-156IG Air Curtain | Made in the USA

156” Twelve-Seventeen Door (TSD) indirect gas heated air curtain. Our TSD line of industrial air doors provide an air barrier for larger dock doors and other ground level doors. Designed for doors up to 17 feet high. Learn more about our industrial air curtains here.

Indirect Gas
Max Install Height

At a Glance

Single Incremental Widths

4' to 30'

MAX Installation Height


Heavy Duty Motors

3 HP

Key Design Features

  • All weight bearing structural support is made of formed 11-gauge stainless steel and galvanized steel. Outer casing is constructed of 16-gauge stainless steel.
  • Heavy duty 3 HP Total Enclosed Aire Over (TEAO) motors at 1160 rpm each, 50/60 cycle. Single speed.
  • Galvanized fans.
  • Air intake screen is perforated stainless steel.
  • Access panels for inspection, cleaning or removal of motor blower assembly, without having to lower the unit.
  • High efficiency discharge plenum with directional air foil vane factory set to facilitate deflection of air stream +/- 20˚.
  • Factory matched indirect gas heater equipped with power exhaust, direct spark ignition, electronic flame supervision and gas pressure switches.
  • Tubular heat exchangers constructed of aluminized steel. Stainless steel heat exchangers are available upon request.
  • Includes NEMA 12 control panel with motor starters, overload relays and control transformer

Recommended Air Curtain Controls

  • Panel mounted HAND / OFF / AUTO switch
  • Thermostat
  • Magnetic Door Switch for activation

360 View

360 View | TSD-3-156IG | Air Curtain | 156” Twelve-Seventeen Door Indirect Gas Heated
TSD-3-156IG | Performance Table
MODELNumber of HeatersInput mbtu / Hour
per Heater
Total Output
mbtu / Hour
Temp. Rise (˚F)Weight (lbs)

Cost Savings Calculator

This tool will help you understand the cost savings you could expect based on the air curtain you select and your input on how and where it will be used.

Calculate Now

Air Curtain Selector

This tool is designed to help you find the best air curtain
for your situation by asking a few basic questions.