Reznor unit heaters are the workhorses of the commercial heating world. While other heaters might fail when the going gets tough, Reznor's UDX series stands ready to deliver consistent, efficient heat in even the most demanding environments.
From busy warehouses to high-ceiling workshops, these units have earned their reputation by showing up daily, season after season.
What makes Reznor different? It starts with its revolutionary TCORE2® heat exchanger technology. Imagine a heat exchanger so well-engineered that it's made from titanium-stabilized aluminized steel. This isn't just marketing talk—it's the kind of innovation that translates directly into years of reliable service and consistent heat delivery when you need it most.
We stock reznor heaters and all the necessary parts to fix your faulty units.
The Reznor UDX Series
Let's break down what makes these units unique. Every UDX series heater combines power-vented, gas-fired operation with innovative design features that simplify installation and maintenance. Whether you're heating a small workshop or a massive warehouse, there's a UDX model engineered for your space:
Small Space Champions (45,000-75,000 BTU):
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Perfect for workshops, garages, and smaller commercial spaces
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Low-profile design that doesn't dominate your ceiling space
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Quiet operation that won't disrupt your work
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Efficient heat distribution through precision-engineered airflow
Mid-Range Powerhouses (100,000-175,000 BTU):
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Ideal for medium-sized warehouses and manufacturing areas
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Balanced performance that heats evenly across larger spaces
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Smart control systems that maintain consistent temperatures
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Robust construction that handles industrial environments
High-Capacity Heroes (200,000-400,000 BTU):
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Engineered for large industrial spaces and high-ceiling applications
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Advanced air movement design for optimal heat distribution
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Heavy-duty components built for continuous operation
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Sophisticated safety systems for peace of mind
Smart Features That Matter
Here's where Reznor's engineering excellence shines. Every UDX unit comes equipped with:
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Multi-try direct spark ignition that ensures reliable starts
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Integrated circuit board with diagnostic LED display
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Vibration-isolated fan and venter motors for whisper-quiet operation
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Powder-coated cabinet finish that stays looking professional
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Easy-access design that simplifies maintenance
Frequently Asked Questions About Reznor Series Heaters
Help me understand which size UDX heater I need for my space.
Think of heating calculations like solving a puzzle – we must consider all the pieces. The general rule is 50 BTU per square foot for well-insulated spaces, but that's the starting point. Ceiling height, insulation quality, and building use all play crucial roles.
For example, a 3,000 sq ft warehouse with 20-foot ceilings and average insulation might need a UDX-150 or UDX-175, while the duplicate square footage with better insulation and lower ceilings might only need a UDX-125. We can help you calculate the perfect size for your specific situation.
What's special about Reznor's TCORE2® heat exchanger?
Imagine building a heat exchanger that gets stronger with use – that's the TCORE2®. While standard heat exchangers can weaken over time, the titanium-stabilized aluminized steel used in TCORE2® technology forms a protective oxide layer that increases durability. This translates to longer life, more consistent heat transfer, and better efficiency throughout the unit's lifespan. It's like having a self-maintaining engine in your car.
What should I know About Installing Reznor Heaters?
Installing a Reznor heater is like orchestrating a symphony—every element must be in the right place. You'll need proper gas line sizing (typically ½" to 1", depending on the model), 115V electrical service, and adequate mounting height (usually 8-12 feet minimum).
Venting is critical, too—these units need proper exhaust runs with specific clearances. While the installation manual provides detailed specifications, we always recommend professional installation to ensure safety and optimal performance.
How do these units handle temperature control?
Reznor's control system is like having a smart thermostat on steroids. Each unit features an integrated circuit board that manages not just temperature, but also monitors safety systems and optimizes performance. You can connect these to standard 24V thermostats, but they also play well with building management systems and advanced control schemes. The 7-segment display makes diagnostics a breeze, showing you exactly what's happening with your unit at any time.
What kind of maintenance schedule should I plan for?
Regular maintenance is like giving your heater an annual physical – it keeps small issues from becoming big problems. Here's a practical schedule:
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Before heating season: Full inspection of heat exchanger, burner assembly, and venting
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Monthly during use: Check air filters and listen for unusual noises
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Quarterly: Inspect fan, motor bearings, and electrical connections
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Annually: Professional service including combustion analysis and safety check
I see these are gas-fired units. What about fuel options?
Reznor UDX units come ready for natural gas but can be converted to propane with the proper kit. Think of it like having a flex-fuel vehicle – the same reliable performance with fuel choice flexibility. A qualified technician should handle the conversion process to ensure proper combustion and safety.
What sets Reznor's airflow design apart from competitors?
The UDX series uses "engineered air movement" – it's not just about pushing hot air into a space. The combination of fan design, motor placement, and outlet configuration creates a precise pattern of air movement that helps eliminate cold spots and stratification.
For example, the UDX-200 moves 2,562 CFM in a pattern specifically engineered to provide even heat distribution in large spaces.
What are the safety features of Reznor Heaters?
Safety in these units is like having multiple backup systems in an airplane. Each UDX includes:
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Flame rollout switches that monitor combustion
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High-limit controls prevent overheating
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Air pressure switches ensure proper venting
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Multi-try ignition preventing gas buildup
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Self-diagnostic systems catching issues early
What about warranty coverage and parts availability?
Reznor backs these units with a robust warranty: 10 years on the heat exchanger and 1 year on parts. But here's the real advantage: Reznor has been in business since 1888, and we stock a comprehensive selection of parts for same-day shipping. When you need support, you're not just getting a warranty claim process but decades of expertise and real problem-solving support.
How energy efficient are these Reznor units really?
The UDX series achieves thermal efficiency ratings of up to 83%, meaning the percentage of energy input that is converted into usable heat output is 83%. Compare this to older units that might operate at 65-70% efficiency, and you'll see significant savings.
