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Gas Unit Heater, LP, Propeller, BtuH Output 141,750, 2850 cfm, Gas Connection 1/2" close
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Gas Unit Heater, LP, Propeller, BtuH Output 141,750, 2850 cfm, Gas Connection 1/2"

Price $1,604.00 / each

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  • Item # 4LX57
  • Mfr. Model # 4LX57
  • UNSPSC # 40101819
  • Catalog Page # 4294
  • Shipping Weight 239.0 lbs.
Country of Origin USACountry 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

Technical Specs

  • ItemGas Unit Heater
  • Gas TypeLP
  • Fan TypePropeller
  • BtuH Input175,000
  • BtuH Output141,750
  • Air Flow2850 cfm
  • Full Load Amps8.0
  • Gas Connection1/2"
  • Flue Dia.5"
  • O.C. Mounting30-5/8"
  • Height33-3/4"
  • Width37-1/4"
  • Depth43-1/2"
  • Indoor Air Discharge Height24-1/2"
  • Indoor Air Discharge Width30-3/4"
  • Voltage120
  • Hz60
  • Air Temp. Rise46 Degrees F
  • Installation Height8 to 20 ft.
  • Ignition SystemHot Surface Pilot
  • Primary Heat Exchanger Material20 ga. Aluminized Steel
  • Drive TypeDirect
  • VentPower
  • Burner Air Inlet Size5"
  • Manufacturers Warranty Length1 yr. All Components, Additional 9 yr. on Heat Exchanger, Flue Collector and Burners
  • StandardsETL
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Compliance and Restrictions



The Dayton® gas unit heater is a tubular, gas-fired direct spark propeller unit heater. 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.

Repair Parts

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  • 4LX57,
  • "4LX57"

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