Scheduled delivery to your door.
A scheduled delivery is available only Monday - Friday during normal business hours and used for heavy and oversized items (large TVs, large furniture and large appliances). This service does not include unpacking, plugging in, installation or debris removal. If there are any stairs leading to your delivery, please contact a sales associate for a quote.
Note: Scheduled delivery services are available to most of the contiguous United States (available in parts of Alaska and Hawaii). Call 800-860-3577 for more information.
Note: Scheduled delivery services are available to most of the contiguous United States (available in parts of Alaska and Hawaii). Call 800-860-3577 for more information.
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Reznor Heater - UDZ Gas-Fired, Separated-Combustion Fan 45,000 BTU In Black & White - RZUDZ45
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Reznor RZUDZ45 Heater Gas-Fired, Separated-Combustion Fan 45,000 BTU In Black & White
Model UDZ gas-fired, separated combustion unit heaters are great for space heating applications. These models use outside air for combustion to prevent dirt, lint, dust or other contaminants in the indoor atmosphere from being burned. Model UDZ are available in 14 sizes ranging from 30,000 to 400,000 BTUH gas input and are approved for installation in the United States and Canada by ETL.
Model UDZ unit heaters feature a two-tone black and white powder coated, scratch-resistant paint scheme with a single red louver. Each unit has clean rounded corners and edges with no visible screws or fasteners. The bottom of the unit is embossed with the Reznor logo.
For air circulation, model UDZ uses an axial propellor fan.
Features
- 115/1/60 supply
- Integrated circuit board with seven-segment display
- Easily-viewed status-indicating LED
- Hinged access door panel with quarter-turn latch
- Improved cabinet design with removable front face
- Two-toned white and black powder paint
- Patented single-burner combustion system
- Natural gas or propane
- 50–60°F temperature rise
- TCORE2 ® titanium-stabilized aluminized-steel heat exchanger
- External terminal strip for 24V wiring
- Built in disconnect switch
- Four-point suspension standard on all unit sizes (two-point suspension available on unit sizes 030–125 when installed without downturn nozzle or stepdown transformer)
California customers:
General
Color
Black | White
Amps (High Heat)
1.9
BTU
45,000
Control Type
Digital thermostat
Heat Type
Gas-Fired
Voltage
115/1/60
Warranty Information
Labor Warranty
1 Year Limited
Parts Warranty
1 Year Limited
Approximate Weight
Unit Weight (lbs.)
58
Package Weight (lbs)
66
Approximate Dimensions
Height (in)
13.75
Width (in)
27
Depth (in)
29.75
Guides
Frequently Asked Questions
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It operates on natural gas or propane, providing efficient and reliable heating.
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This unit uses outside air for combustion, which helps prevent contaminants inside the indoor atmosphere such as dirt, lint, or dust from being burned, ensuring clean operation.
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The heater features a patented single-burner combustion system, an integrated circuit board with status-indicating LED, and a built-in disconnect switch for safe and easy maintenance.
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It offers a heating capacity of 45,000 BTU and an air volume of 629 CFM for effective space heating.
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The unit comes with a 1-year limited labor warranty and a 1-year limited parts warranty, ensuring protection against defects and reliable performance.
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