Reznor UDX 200,000 BTU Propane Unit Heater - NUDX200,N1036540R

Reznor UDX 200,000 BTU Propane Unit Heater - NUDX200,N1036540R

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.

Features

• 83% AFUE Efficiency
• TCORE2 titanium stabilized aluminized steel heat exchanger
• Multi-try, direct spark ignition with time lockout
• Vibration/noise isolated fan and venter motors designed for low noise operation
• External status indicating LED that blinks if there is a problem that needs service
• 7-segment display board that shows fault code for quick and easy troubleshooting
• Optional integrated downturn nozzle and integrated vertical louvers

What our Experts Think

• Balanced mid‑capacity power
  With 200,000 BTU input, this heater delivers strong performance for medium‑to‑large commercial and industrial areas like warehouses, workshops, and service bays—without over‑sizing for typical space heating needs.
• Efficient propane operation
  Built for propane fuel, it achieves around 83 % AFUE, giving good fuel efficiency and heat output in off‑grid or rural setups where natural gas isn’t available.
• Durable, long‑lasting design
  The TCORE2 titanium‑stabilized aluminized steel heat exchanger resists corrosion and wear, ensuring reliable service life in demanding environments.
• Smart diagnostics & service‑friendly features
  Integrated LED status indicators and a 7‑segment fault display make troubleshooting fast, lowering maintenance time and costs.
• Quiet, efficient airflow
  An axial propeller fan with vibration‑isolated motor helps maintain low operating noise and strong circulation for even heat distribution

Q&A

Q1: What space size is the Reznor UDX200 suited for?
A: With 200,000 BTU input and approx. 166,000 BTU output, this propane unit heater is great for large garages, workshops, warehouses, and commercial/industrial buildings needing strong, consistent heating.

Q2: What fuel does this model use?
A: The UDX200 runs on liquid propane (LP) with a factory‑approved propane configuration (SKU N1036540R).

Q3: How efficient is the UDX200 heater?
A: It offers up to ~83 % AFUE efficiency, maximizing heat delivery while reducing energy waste.

Q4: What are its key durability and build features?
A: Features include a TCORE2 titanium‑stabilized aluminized steel heat exchanger, direct spark ignition with time lockout, and low‑noise, vibration‑isolated fan and venter motors for long life and quieter operation.

Q5: How’s the airflow and heat distribution?
A: Designed with an axial propeller fan and ~2,562 CFM airflow, it delivers strong heat circulation throughout large spaces.

Q6: Is installation and troubleshooting easy?
A: Yes — it includes external status LEDs and a 7‑segment diagnostic display for quick service checks and maintenance.

Q7: What are the electrical and mounting specs?
A: Runs on 115 V single‑phase power, and supports 2‑ or 4‑point ceiling suspension mounting (common for unit heaters).

Maintenance Tips

• Clean fan & airflow components: Dust the axial propeller fan, louvers, and intake areas regularly to maintain strong airflow (~2000 CFM) and consistent heat distribution. 
• Inspect heat exchanger annually: Check the TCOREO aluminized steel exchanger for cracks or corrosion to ensure safe combustion and long-term durability. 
• Check ignition & propane system: Test the direct spark ignition and verify propane pressure and connections to prevent misfires or uneven heating. 
• Keep venting system clear: Ensure the power vent and flue outlet are free of obstructions to avoid heat loss and exhaust hazards
• Monitor electrical components: Inspect wiring, control board, and LED diagnostics; tighten any loose connections to maintain reliable operation. 
• Inspect fan & motor performance: Check vibration-isolated motors for smooth, low-noise operation (~52 dB) and prevent wear. 
• Verify propane conversion kit (N1036540R): Ensure proper installation and calibration for safe propane operation.