Sterling Nexus 200,000 BTU High Efficiency Propane Unit Heater



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Sterling's Nexus Unit Heater Series boast unmatched levels of unit heater efficiency. It leads the industry with its up to 99% thermal efficiency and utilizes state-of-the-art innovations, such as a tri-metal stainless steel heat exchanger and Sterling's premium combustion control platform. The Nexus series also claims the title of the most environmentally friendly unit heater with its low emissions, fuel utilization, and a reduced carbon footprint.


  • BTUs: 200,000
  • Dual Motors
  • Tri-Metal Heat Exchanger - Unique Stainless Steel, Brass and Aluminum Composition
  • Auto-Adjusts to Altitude
  • SafeSense Emergency Shut-Off for Blocked Inlets and Flues
  • Indoor Air Reset Technology that Learns Building Heating Needs
  • Outdoor Air Rest Technology that Adjusts to Outside Temperatures
  • 10-Year Warranty

Product Specifications

More Information
Sterling Nexus 200,000 BTU High Efficiency Propane Unit Heater
Exhaust Flue RequirementPlastic / PVC
Additional InformationClearance Dimensions: 18" from Air Intake and Access Sides, 6" from all others
Additional InformationTurn Down Ratio: 3:1
Additional InformationGas Pressure Min-Max: 5-14"wc
Additional InformationGas Control: Modulating with Outside Air Reset (Master)
Furnace Efficiency / AFUE 96%
Heating BTU200,000
Maximum CFM3,232
Motor RPM1,500
Horsepower1/2 HP
Venting TypePower Vent
Flue Outlet3" Round
Electrical115 / 1 / 60
PhaseSingle Phase
Amperage Requirement17.6 Amps @ 115V
Connection1/2" Gas Connection
MaterialStainless Steel Jacket, Tri-Metal (Stainless Steel, Brass, Aluminum) Heat Exchanger
Fuel TypePropane
Height17 1/4"
Width54 13/16"
Warranty10 Year Warranty
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING


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