SKU: 82854473022

Reznor UDX400 409-Stainless Steel Power Vented Gas Unit Heater ODP 115V, 1-Stage Gas Valve - Factory Installed

Sale price$2912.40 Regular price$3236.00
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Description

Reznor UDX400 409-Stainless Steel Power Vented Gas Unit Heater ODP 115V, 1-Stage Gas Valve - Factory InstalledOverview Reznor HVAC has 130 years of experience manufacturing a wide range of industry leading industrial and commercial HVAC products. Reznor built its reputation by providing reliable, high quality heating, ventilation and cooling systems. Since its founding in 1888, Reznor has remained at the forefront of HVAC technology. Reznor is a global leader thanks to its innovative, extended range of gas fired unit heaters, air handlers, condensers and


Overview

Reznor HVAC has 130 years of experience manufacturing a wide range of industry-leading industrial and commercial HVAC products. Reznor built its reputation by providing reliable, high-quality heating, ventilation and cooling systems.

Since its founding in 1888, Reznor has remained at the forefront of HVAC technology. Reznor is a global leader thanks to its innovative, extended range of gas-fired unit heaters, air handlers, condensers and rooftop units.

 

Descriptions

Our industry-leading unit heaters are easy to install and accommodate any need. They feature a compact design that fits into any minimal design. And, their zoning capabilities can save energy by directing the heat where it needs to go. A wide range of energy-efficient, aesthetically-pleasing designs provides many sizes and types to choose from while delivering a durable design with a showroom appearance.

 

Features

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. Model UDX is available in 14 sizes ranging from 30,000 to 400,000 BTUH gas input and is approved for installation in the United States and Canada by ETL.

UDX unit heaters feature a two-tone black and white powder-coated, scratch-resistant paint scheme. Each unit has clean rounded corners and edges with no visible screws or fasteners.

For air circulation, model UDX uses an axial propellor fan.

  • Certified for residential heating application
  • Certified for commercial/industrial heating application
  • Up to 82%-83% thermal efficiency
  • 50-60º F temperature rise range
  • 115/1/60 Supply
  • External terminal strip connector for 24-volt wiring
  • Integrated circuit board with 7-segment display
  • External diagnostic LED
  • Hinged access door for easier service
  • Single or two-stage gas valve with external gas service connection
  • 4-point and 2-point suspension
  • Serpentine titanium stabilized heat exchanger design
  • Direct spark ignition with 100% cutoff

 

Specifications

Model UDX400
Product Type Unit Heater
Fuel Type Natural Gas or Propane
Gas Control 1-Stage Valve
Ignition Type Direct-Spark
Installation Type Ceiling Mount
Heat Exchanger Material 409 Stainless Steel
Input Heating Capacity 400,000 BTU/H
Output Heating Capacity 332,000 BTU/H
Thermal Efficiency 83%
Gas Connection Size 3/4"
Vent Connection Size
6"
Air Volume CFMs
5123 - M³/minute: 145.1
Motor RPM 1050
Noise Level dBA @ 15ft
62
Normal Power Consumption
1086W
Voltage
ODP 115V
Dimension
H 34.125" x W 41" x D 48.90625"

 


Clearance from Combustibles

Size Top Flue Connector Access Panel* Non-Access Side Bottom* Rear*
30-125 1" 6" 18" 1" 1" 18"
150-400 4" 6" 18" 2" 1" 18"

*Access Panel clearance is required for service clearance to controls
*Bottom Suspend the heater so that the bottom is a minimum of 5’ (1.5M) above the floor.
*Rear clearance is required for air movement. Rear clearance should be measured from the fan motor

 

The UDX can be used in many markets including:

  • Retail
  • Showrooms
  • Workshops
  • Schools
  • Exhibition Halls
  • Hospital/Medical
  • Sports Facilities
  • Water Treatment
  • Transportation Terminals
  • Industrial Manufacturing
  • Warehouse/Distribution
  • Food & Beverage
  • Residential

 

Warranty

Reznor warrants to the original owner-user that this product will be free from defects in material and workmanship. This warranty is limited to twelve (12) months from the date of original installation, whether or not actual use begins on that date, or eighteen (18) months from date of shipment, whichever occurs first.

 

Downloads

 Safety Information: See CA Prop 65 Warning

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 82854473022

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4.7 ★★★★★
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Verified Purchase
Chris
West Palm Beach, US
★★★★★ 5
Great as long as you know its limitations; runs warm; monitor settings may need to be changed
I reluctantly gave up MagSafe and joined the USB-C future when my employer issued me a new 2019 16" MacBook Pro. Searching for a way to connect my various peripherals I settled on this hub as a reasonable way to connect a 4K display, pass power from the laptop charger (albeit not the full 96W; macOS reports 79W after hub losses—good enough most of the time), connect 1GigE, and provide a few spare USB ports and occasionally-used SD card slots. I've learned a few things: A port that looks like USB-C does not pass video unless it is a "Thunderbolt" port (look for the lightning bolt logo, apparently); connecting a USB-C-to-mini-DisplayPort adapter to the USB-C port on this hub did not allow my monitor to work. Lesson learned. The HDMI port did work, and did pass 4K@60Hz, but only after I adjusted my monitor settings. At first I was convinced either my HDMI cable or this hub were defective, because macOS would only allow me to select 4K@30Hz. I have an LG 4K display, and from reading forums, one must enable 60Hz in the on-screen display menu before the monitor will tell the computer it is capable of displaying 60Hz video. For my monitor, that meant changing "Ratio" in "Quick Settings" to "Original" (it defaulted to "Wide", with a separate configuration for each port), as well as turning on "HDMI ULTRA HD Deep Color" from "Picture" -> "Picture Adjust." After I changed those two settings, 60Hz was not available until I unplugged the HDMI cable from the hub and plugged it in again. After that I had buttery smooth 4K video at 60Hz. The hub works as advertised, at least for my configuration. The 1GigE port works well, and is equivalent to a direct USB-C to Ethernet adapter I tried. It does run warm to the touch as other reviewers have reported. That's not problematic, but I'd prefer it pass the missing 17W to the laptop rather than dissipate it as heat. Time will tell how well the hub holds up, but for now I'm happy. In summary: if you have a new Mac this hub will likely work for you, though you may need to adjust your monitor settings.
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Reviewed in the United States on September 1, 2020
A
Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 4
Older flash drives might not work.
Port labels are too faint to read easily and the PD out port isn't labelled (I suppose they thought it was obvious since it has a fixed cable). The USB ports are speedy except it won't recognize any of my several SanDisk Cruzer Glides. Others flash drives work okay. Works great as an iPhone USB C to TV HDMI converter.
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Reviewed in the United States on May 23, 2026
G
Verified Purchase
Graham S McLeod
Carnegie, US
★★★★★ 5
Essential USB-C Adapters That Just Work Perfectly
These adapters are an absolute must-have and make life significantly easier when dealing with modern USB-C devices. The fit is perfect, the adapters feel high quality, and they work flawlessly. Data transfer has been fast and reliable, and I have had no connectivity issues at all. They are small enough to keep permanently attached to cables or stored in a laptop bag, making them incredibly convenient for everyday use. As someone who regularly works with laptops, electronics, and multiple USB standards, I consider these essential accessories. They offer excellent value for the money and solve a surprisingly common problem very elegantly.
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Reviewed in the United States on May 27, 2026
S
Verified Purchase
Svetlana
Draper, US
★★★★★ 5
Works perfectly with MacBook
Bought these adapters after getting a wireless mouse for a MacBook and realizing the USB receiver couldn’t be connected directly because the Mac doesn’t have a regular USB port. These adapters solved the problem completely. They work exactly as expected and were very easy to use. The quality feels good and the color matches the MacBook nicely, so they don’t look cheap or out of place. Small, simple, and stylish adapters that do their job well
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Reviewed in the United States on May 16, 2026
C
Verified Purchase
Cynthia Hernandez
Houston, US
★★★★★ 5
Anker adapters
These Anker adapters honestly saved me. The quality feels very premium and they work perfectly with no disconnecting or recognition issues. I used them to connect USB-C accessories and everything worked instantly and smoothly. They’re compact, durable, and super convenient to carry around for my content creation setup. The metallic finish also feels much more reliable compared to cheaper adapters I’ve tried before. Definitely recommend this brand if you want something dependable and high quality for your devices. ✨
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Reviewed in the United States on May 25, 2026

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