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Sterling - Tubular Propeller Natural Gas Fired Unit Heater 300,000 Btu 115 Volt Single Phase 60 Hz, Right Hand Access

Item: TF-300
MFR: TF300A1NS111

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About This Product

Product Info


The Tubular Gas Fired Unit Heater is a factory assembled, power vented, low static pressure type propeller fan unit heater designed to be suspended within the space to be heated. This Tubular Unit Heater is design certified under ANSI Z83.8 for Industrial/Commercial use and IAS 10-96 U.S.(2nd ed.) Unit Heaters for Residential Installation. The designs are certified by ETL as providing a minimum of 82% thermal efficiency, and approved for use in California. These propeller units combine the latest tubular heat exchanger technology with a unique single orifice burner system in a compact, low profile design.

  • 82+% Thermal Efficiency
  • Redundant Single-Stage Gas Valve
  • Residential Certification
  • 120/24V Control Transformer
  • OSHA Fan Guard
  • 115/1/60 Fan Motor with Internal Overload Protection
  • Direct Spark Ignition
  • 20-Gauge Cabinet with Baked Enamel Finish
  • 10 Year Heat Exchanger Warranty
  • Right Hand Control Access - Field Convertible to Left Hand
  • High Limit Switch
  • Air Pressure Switch
  • Natural or Propane Gas
  • Gas Conversion Kit Included
  • Field Convertible to Separated Combustion
  • Easy Access Control Panel
  • 321 Stainless Steel Burner Box
  • 20-Gauge Aluminized Heat Exchanger
  • Power Vented
Warning: this product contains a chemical known to the State of California to cause cancer.


Weight307 Pounds (lbs)
Width44.75 Inches (In)
Height34 Inches (In)
Country of OriginUSA
Length55.25 Inches (In)
Air FlowHorizontal
BTU Input300000
BTU Output249000
CertificationsNFPA 70; NFPA 54; ASHRAE 90.1 Section 6 Heating, Ventilating & AC
Connection Size3/4"
Connection TypeThreaded
CSA CertifiedNo
Cycle/Hertz60 Hz
Energy Star RatedNo
FinishBaked Enamel
Flue Size6"
Fuel TypeNatural Gas
Full Load Amps9.4
GasNatural Gas
Gas Connection1/2" [12.7 mm] N.P.T.
Gas TypeNatural
Heat Exchanger TypeTubular
Ignition TypeDirect Spark
Maximum Pressure (PSI)35
Motor HP(2) 1/4 HP
Motor TypePSC
Prop 65Yes
Thermal Efficiency83%
UL ListedNo
UL RecognizedNo
Voltage115 VAC
Warranty OfferedYes


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