Skip Content

Gas Unit Heater, NG, Propeller, BtuH Output 324,000, 5800 cfm, Gas Connection 3/4" close
close x

Using 360° Viewing:

  1. Rotate: Use top-to-bottom, side-to-side by use of mouse arrow.
  2. Zoom In: Double click on image.
  3. Zoom Out/Reset: Put photo at full zoom & then double click.
Megaphone How can we improve our Product Images?

Gas Unit Heater, NG, Propeller, BtuH Output 324,000, 5800 cfm, Gas Connection 3/4"


Price $2,960.00 / each

Activate Now

to save with

Select AdvantageSM

Please sign in or register to access lists

Confirm ZIP Code to determine availability.


Invalid Zip Code


Ship to: (Change)


Invalid Zip Code

  • Item # 4LX68
  • Mfr. Model # 4LX68
  • UNSPSC # 40101819
  • Catalog Page # 3847
  • Shipping Weight 390.0 lbs.
Country of Origin USA Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Product Details

This tubular gas fired direct spark propeller unit heater is designed to be suspended within the space to be heated. It features 2-point suspension for balanced installation. The power venting allows horizontal venting through side walls. Delivers 83% thermal efficiency. ETL Certified in accordance with both Categories I and III venting requirements.

Note: For altitudes above 2000 ft., consult owner's manual prior to installation for proper adjustments. This heater is not to be connected to ductwork.

View More

Technical Specs

  • Item Gas Unit Heater
  • Gas Type NG
  • Combustion Type Open
  • Fan Type Propeller
  • BtuH Input 400,000
  • BtuH Output 324,000
  • Air Flow 5800 cfm
  • Full Load Amps 13.5
  • Gas Connection 3/4"
  • Flue Dia. 6"
  • O.C. Mounting 48-5/8"
  • Height 34"
  • Width 55-1/4"
  • Depth 44-3/4"
  • Indoor Air Discharge Height 24-1/2"
  • Indoor Air Discharge Width 48-3/4"
  • Voltage 120
  • Hz 60
  • Air Temp. Rise 51 Degrees F
  • Installation Height 8 to 20 ft.
  • Ignition System Hot Surface Pilot
  • Primary Heat Exchanger Material 20 ga. Aluminized Steel
  • Drive Type Direct
  • Vent Power
  • Burner Air Inlet Size 6"
  • Manufacturers Warranty Length 1 yr. All Components, Additional 9 yr. on Heat Exchanger, Flue Collector and Burners
  • Standards ETL
Megaphone How can we improve our Technical Specifications?

Compliance and Restrictions


Product availability based on selecting either shipping or pick up and a location. Dismiss

Replacement Parts

Need help finding replacement parts? Please use the list below or call 1-800-GRAINGER (1-800-472-4643)

Customer Reviews

Product Reviews Disclaimer:
Grainger is neither responsible for, nor does it endorse, the content of any product review or statement posted. Any statements posted constitute the statements of the poster and are not the statements of Grainger. The statements posted by Grainger employees with the Grainger employee badge represent the views of such employees and are not the statements of Grainger. Grainger makes no representations as to the appropriateness, accuracy, completeness, correctness, currentness, suitability, or validity of any product review or statements posted, including those posted by employees with the Grainger employee badge, and is not liable for any losses, injuries or damages which may result from any such product review or statements. Use of any linked web site provided in a product review or post is at the user's own risk.