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Reznor UDAP-175 Power Vented Gas Fired Unit Heater - 175,000 BTU

  • $1,975.12

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Availability: In Stock

Brand: Reznor

Product Code: UDAP-175


Product views: 7252

Product Accessories

Image Product Price Quantity Action
Reznor 269838 NG to LP Conversion Kit Reznor 269838 NG to LP Conversion Kit

1 LEFT IN STOCK THEN Product discontinued, please see new model UDX175

Veteran Owned and Operated HVAC Supplier.  Reznor V3 Series Model UDAP gas-fired unit heaters are available in 14 sizes ranging from 30,000 to 400,000 BTUH gas input. All sizes are approved for commercial/industrial installations. Sizes 30-125 carry an additional approval for use in attached residential garage/workshop application. Model UDAP heaters are designed for 82-83% thermal efficiency and are approved for installation in the United States and Canada by the Canadian Standards Association (CSA).

Reznor V3 Series unit heaters have a refreshing new appearance with a glossy white cabinet finish and less visible hardware. Each size cabinet is easily suspended from either 2 or 4 suspension points. Or, an optional hanger kit for Sizes 30-125 allows for ceiling mounting. The low voltage terminal strip on the outside of the cabinet makes connecting control wiring easy with no panels to remove. The addition of a "G" terminal to the strip, along with the new design of the circuit board, allows for fan only operation (without adding relays). All units have a factory installed gas line nipple to the exterior of the cabinet for easy gas service connection.

The preeminent new internal feature is the Tcore2 heat exchanger and single burner combustion system. Other standard features include a single-stage gas valve, multi-try direct spark ignition with timed lockout, pressure switch to verify vent flow, resiliently isolated venter motor, venter wheel with improved housing, resiliently isolated axial fan and motor assembly, and a high temperature limit control. Sizes 30-125 also include a flame rollout safety switch. Operation is controlled through an integrated circuit board. The circuit board monitors heater operation and has LED diagnostic indicator lights to identify abnormalities in control functions.

The V3 Series unit heaters are designed to provide all the features you expect in a Reznor heater plus improved efficiency, easier installation, and a new look ~ both inside and out. Look for the unique white unit with no visible front and bottom hardware, deep red louvers, black side handle, and angled corner to know you have a genuine Reznor unit by Thomas & Betts.

Model #UDAP-175


  • Sizes 30-400 certified for commercial/industrial heating application
  • Sizes 30-125 carry an additional approval for use in residential garage/workshop heating applications
  • 82-83% Thermal efficient ~ TOP in its class!
  • 50-60°F Rise range
  • Tcore2 titanium stabilized aluminized steel heat exchanger
  • Patented A single burner combustion system including a one-piece burner assembly
  • 115/1/60 Supply voltage
  • 115 Volt open fan motor with internal overload protection
  • Transformer for 24-volt controls
  • Integrated circuit board with diagnostic indicator lights
  • Multi-try direct spark ignition with timed lockout
  • Fan relay (included on the circuit board)
  • Single-stage natural gas valve (field adjustable for operation to 9,000 ft. elevation)
  • Vibration/noise isolated fan and venter motors ~ designed for low noise operation
  • 2-pt and 4-pt Suspension ~ standard on all sizes
  • External terminal strip for 24-volt wiring
  • External gas connection
  • Full fan guard ~ engineered for safety
  • Improved cabinet design with less visible hardware


  • Single-stage, propane gas valve (field adjustable for operation to 9,000 ft. elevation B)
  • Two-stage natural gas or propane gas valve - Sizes 60-400
  • 409 or 316 Stainless steel heat exchangers
  • Totally enclosed fan motor (Sizes 30-250, 115V only)
  • Common venting with other gravity vented Category I appliance(s) (Sizes 30-100)


  • Vent cap
  • Thermostat
  • Thermostat guard with locking cover
  • Vertical louvers
  • Downturn nozzle kits
  • Gas conversion kits (natural and propane)
  • Primary/secondary controls for zoning up to six units
  • Ceiling suspension kit - Sizes 30-125
  • Hanger kits for 1" pipe
  • Stepdown transformer (for 208/115, 230/115 or 460/115 supply voltage)
  • Manual shutoff valves


  • Type: Unit Heater
  • Efficiency: 83%
  • Gas Type: Natural Gas
  • BTU: 175000
  • BTU Input: 175000
  • BTU Output: 145250
  • Venting: Power Vent
  • Gas Connection: 1/2"
  • Flue Connection: 5"
  • Features: EI/Spark Ignition
  • Voltage: 115
  • Height (Inches): 20.125"
  • Width (Inches): 38-3/16"
  • Depth (Inches): 42"
  • Weight (lbs): 187 lbs.
  • Warranty: 1 Year
  • Mount: Horizontal
Thumb File information
pdf-50x50.png Product Overview.pdf 775.36KB 173
pdf-50x50.png Install Instructions.pdf 1.59MB 136
pdf-50x50.png Product Brochure.pdf 4.32MB 110
pdf-50x50.png Sound Data.pdf 185.79KB 207
pdf-50x50.png Air Throw and Floor Coverage.pdf 349.3KB 164
pdf-50x50.png Replacement Limit Controls.pdf 272.59KB 192
pdf-50x50.png Submittal Sheet.pdf 173.57KB 223
pdf-50x50.png Warranty.pdf 111.34KB 215
pdf-50x50.png NG to LG Conversion.pdf 372.77KB 160
pdf-50x50.png Replacement Parts.pdf 1.61MB 144
pdf-50x50.png Options And Accessories.pdf 1.04MB 118


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