Reznor UEZ 55,000 BTU High Efficiency Gas Fired Separated Combustion Unit Heater

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Model

UEZ-55 *

232028

Was $3,246.00

Your Low Price $1,875.00

Product Features

55,000 BTU
Fuel Type: Natural gas w/ propane conversion kit included
Dimensions: 17 5/8" H x 28 1/4" W & 31" D
Certification: ETL certified, including residential garages/workshops
93% thermal efficiency
Warranty: 10-Year Heat Exchanger / 5-Year Parts

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Reznor UEZ 55,000 BTU High Efficiency Gas Fired Separated Combustion Unit Heater

Reznor UEZ 55,000 BTU High Efficiency Gas Fired Separated Combustion Unit Heater + $1,875.00

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Reznor 1041269R CD2 Nozzle Kit for UEZ 55 Unit Heaters

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Description

Reznor UEZ 55,000 BTU High-Efficiency Gas-Fired Separated Combustion Unit Heater

Overview

The Reznor UEZ Series gas-fired unit heater is a high-efficiency commercial heating solution engineered for reliable warm-air performance in industrial and commercial spaces. Designed with separated combustion technology, the UEZ draws combustion air from outside the building, helping maintain cleaner indoor air while protecting internal components from contaminants commonly found in demanding environments. Its high thermal efficiency helps reduce fuel consumption while delivering consistent heat output for larger interior areas.

Built with commercial durability in mind, the UEZ series features a corrosion-resistant cabinet, advanced ignition controls, and service-friendly access that supports long operating life during continuous seasonal use.

Key Features

Every base unit in the UEZ series includes core features designed for efficiency, durability, and easier maintenance:

Separated combustion design using outside air for cleaner operation
Integrated diagnostic control board with LED display for quick troubleshooting
Painted galvanized-steel cabinet with corrosion-resistant finish for long-term durability
Factory-supplied natural gas setup with included propane conversion capability

These built-in features help make the UEZ series a dependable heating solution without requiring additional upgrades to achieve strong day-to-day performance.

Easy Installation

The UEZ series is designed to support efficient installation by qualified HVAC professionals. Standard four-point suspension mounting, external low-voltage terminal strip access, and organized internal controls help simplify setup during installation. Each unit is factory-tested before shipment, helping reduce startup concerns once installed on site.

The unit’s service-access design also supports easier post-installation maintenance, with a hinged control compartment and removable access panels for faster internal inspection.

Installation Applications

Common installation locations include:

Warehouses
Workshops
Service garages
Manufacturing spaces
Equipment storage buildings
Distribution facilities

Because of its separated combustion system, the unit performs especially well in environments where cleaner combustion air is important for long-term equipment reliability.

Quick Facts

Commercial-grade high-efficiency gas-fired unit heater
Low-static airflow design
Separated combustion for cleaner indoor operation
Factory-tested before shipment
Designed for long seasonal heating performance

Warranty

Reznor UEZ units offer a 5 Years Parts Warranty, 10 Years Heat Exchanger Warranty.

Product Specs

More Information
Reznor UEZ 55,000 BTU High Efficiency Gas Fired Separated Combustion Unit Heater
Feature	Spec
SKU	UEZ-55
Weight (in lbs)	120
Brand/Manufacturer	Reznor
UPC	663132444991
Furnace Efficiency / AFUE	93%
Heating BTU	55,000 BTU
Heat Exchanger Material	Aluminized Steel
Maximum CFM	967
Venting Type	Separated Combustion \| High Efficiency Condensing
Flue Outlet	4” Flue Outlet \| 6” Combustion Air Inlet
Watt	180 Watts
Efficiency	93%
Electrical	115 Volt 1 Phase 1.6 Amps
Operating Mode	Heating
Fuel Type	Natural Gas
Height	17 5/8"
Width	28 1/4"
Depth	31"
Warranty	5 Years Parts Warranty, 10 Years Heat Exchanger Warranty
Resources	Reznor UEZ Brochure Reznor UEZ Catalog Reznor Warranty Reznor UEZ Technical Specification Reznor UEZ Installation Sheet You will need Adobe® Reader to view PDF documents.
Safety Information	PROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here.
Reznor 1042289R CC25 24" Universal Vent Kit for UEZ 55–110 Unit Heaters
Feature	Spec
SKU	1042289R
Weight (in lbs)	9.3
Brand/Manufacturer	Reznor
UPC	663132486151
Safety Information	PROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here.
Reznor 1041266R CD1Vertical Louver Kit for UEZ 55 Unit Heaters
Feature	Spec
SKU	1041266R
Weight (in lbs)	0.1
Brand/Manufacturer	Reznor
Safety Information	PROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here.
Reznor 1041269R CD2 Nozzle Kit for UEZ 55 Unit Heaters
Feature	Spec
SKU	1041269R
Weight (in lbs)	0.1
Brand/Manufacturer	Reznor
UPC	663132443956
Safety Information	PROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here.
Reznor 1041270R CD3 Nozzle Kit for UEZ 55 Unit Heaters
Feature	Spec
SKU	1041270R
Weight (in lbs)	0.1
Brand/Manufacturer	Reznor
Safety Information	PROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here.
Reznor 1021833 High Altitude Pressure Switch for UEZ 55/85
Feature	Spec
SKU	1021833
Weight (in lbs)	0.1
Brand/Manufacturer	Reznor
Safety Information	PROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here.

Reviews

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FAQ's

Customer Questions

How do I choose the right Reznor UEZ model for my building size?

Hello, thank you for reaching out. Choosing the right Reznor UEZ unit depends on square footage, ceiling height, insulation quality, climate conditions, and how quickly the space needs to recover heat. Lower-BTU models such as UEZ-55 and UEZ-85 are often selected for smaller garages or workshops, while larger models like UEZ-180 through UEZ-310 are better suited for warehouses, agricultural buildings, and larger commercial applications. If you have additional questions, please feel free to reach out over the phone to our Customer Service line at 1-888-901-5460. Have a great rest of your day.

Is the Reznor UEZ series a good replacement for older suspended gas unit heaters?

Hello, thank you for reaching out. Yes. The Reznor UEZ series is often selected as an upgrade from older non-condensing unit heaters because it offers high-efficiency condensing performance, separated combustion, and modern control compatibility. Buyers replacing aging suspended heaters often choose UEZ models to improve fuel savings and long-term heating reliability. If you have additional questions, please feel free to reach out over the phone to our Customer Service line at 1-888-901-5460. Have a great rest of your day.

Can all Reznor UEZ models be used in commercial and light industrial spaces?

Hello, thank you for reaching out. Yes. All Reznor UEZ models—from 55,000 BTU through 310,000 BTU—are engineered for commercial and industrial heating applications where reliable suspended gas heat is needed. Because the series includes multiple BTU capacities, building owners can choose a unit size that matches square footage, ceiling height, and heat loss requirements while keeping the same core product design across the lineup. If you have additional questions, please feel free to reach out over the phone to our Customer Service line at 1-888-901-5460. Have a great rest of your day.

Does the Reznor UEZ series require regular maintenance?

Hello, thank you for reaching out. Yes. Like all gas-fired heating equipment, the Reznor UEZ series performs best when routine maintenance is completed. Recommended service includes inspecting burners, checking the heat exchanger, verifying vent system condition, and confirming condensate drainage remains clear. Regular maintenance helps protect efficiency, safety, and long-term equipment life across all UEZ sizes. If you have additional questions, please feel free to reach out over the phone to our Customer Service line at 1-888-901-5460. Have a great rest of your day.

Why is separated combustion important in the Reznor UEZ series?

Hello, thank you for reaching out. Separated combustion allows the Reznor UEZ heater to isolate combustion air from indoor contaminants, which is especially valuable in spaces containing dust, chemicals, or airborne particles. This design can help extend component life and maintain safer combustion performance because the burner is not relying on potentially contaminated indoor air. If you have additional questions, please feel free to reach out over the phone to our Customer Service line at 1-888-901-5460. Have a great rest of your day.

Why Choose Reznor Unit Heaters?

Reznor unit heaters are engineered for powerful, energy-efficient heating in commercial, industrial, and residential spaces. With durable construction and advanced technology, these heaters deliver reliable warmth, even heat distribution, and flexible installation options—making them ideal for warehouses, garages, workshops, and more.