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Reznor UDX Natural Gas Unit Heater 125,000 BTU



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Reznor model UDX gas-fired unit heaters are great for space heating applications. These units are power vented to eliminate heat losses up the flue pipe. Each heater features a two-tone black and white powder coated, scratch-resistant paint scheme and has clean rounded corners and edges with no visible screws or fasteners. For air circulation, the UDX series utilize an axial propellor fan.

Standard Features

  • 83% AFUE Efficiency
  • TCORE2 Titanium-Stabilized Aluminized Steel Heat Exchanger
  • Multi-Try Direct Spark Ignition with Time Lockout
  • Low Noise Operation with Vibration-Isolated Fan and Venter Motors
  • Status-Indicating LED Light
  • 7-Segment Display Board for Simple Troubleshooting
  • Optional Integrated Downturn Nozzle and Integrated Vertical Louvers
  • 2- and 4-Point Suspension Options
  • External Gas Connection for Ease of Maintenance and Installation
  • Includes 3 Horizontal Louvers
  • ETL Approved

Product Note

Reznor UDAP is the legacy model of the Reznor UDX

Product Specifications

More Information
Reznor UDX Natural Gas Unit Heater 125,000 BTU
Weight (in lbs)125.000000
Additional InformationAir Throw: 65 Feet
Furnace Efficiency / AFUE 80-85%
Heating BTU100,000-149,999
Maximum CFM1537
Decibel Level (dBA)55dB at 15ft
Propeller Diameter16 inches
Flue Outlet4"
Watt354 Watts
Electrical115 Volt 1 Phase 60 Hertz
Amperage Requirement5.6 Amps
Connection1/2" NG/LP Connection to Gas Valve
Fuel TypeNatural Gas
Height24 3/4"
Depth34 9/32"
Warranty9 Year Heat Exchanger, Burner, and Flue Collection Box Assembly; 4 Year All Electrical and Mechanical Components
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING

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Questions and Answers

Customer Questions
Do Reznor require garage heaters to be installed by licensed HVAC technicians?
Yes, Reznor requires that an HVAC technician performs the installation of their garage heaters just like Modine. If you have any further questions we recommend that you give us a call. Thanks!
Is there a minimum height requirement under the heater?
Yes, you will need at least a 5' clearance on this unit heater from the floor. If you have any further questions please feel free to give us a call! Thanks.
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