50 Gallon Tall Ultra Low NOx Natural Gas Water Heater - 12 Year Warranty

50 Gallon Tall Ultra Low NOx Natural Gas Water Heater - 12 Year Warranty

Model: NU50T121-403    Lowe's Item* #: 333574


  • FLAME LOCK® Safety System Reduces the Risk of Accidental Fires Involving Flammable Vapors
  • Electronic Gas Valve has fewer moving parts than a conventional mechanical gas valve, for durability and long life-no external power source needed
  • Self-Diagnostic Electronic Gas Control incorporates an LED status indicator that monitors and reports on system operational status
  • Piezo Electric Igniter makes lighting the pilot fast and easy
  • Environmentally friendly polyurethane foam insulation reduces heat loss for maximum efficiency, saves money
  • Ceramic tank lining and aluminum anode rod protects tank from corrosion, for long tank life
  • Factory installed temperature and pressure relief valve ensures safe operation
  • Ultra Low NOx natural gas model meets 10ng/J emissions standards

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Product Dimensions
Height w/Draft Hood:61.25"
Weight:151 lbs.
Vent Type:Type B Double Wall
Vent Diameter:3"
Configuration and Overview
Capacity:50 Gallons
Family Size:5+
Energy Star Certified:No
Energy Factor:0.58
Annual Cost of Operations:$282
LCD Display:No
Self Cleaning:No
Warranty Tank:12 Years
Warranty Parts:12 Years
Warranty Labor:1 Year
BTU Input:40,000 BTUs
Emissions Standards:Ultra Low NOx
Ignition Type:Pilot with Piezo Igniter
Foam Insulation:1 inch
Water Connection Location:Top
Water Connection Size:3/4 inch
T&P Relief Valve:Yes
Energy & Eco-Friendly
Energy Factor:0.58
Ultra Low NOx:Meets SCAQMD Rule 1121
50 Gallon Natural Gas Water Heater - NU50T121-403 4.4 5 39 39
Easy to use This water heater is very quiet, easy to light and was a breeze to install. May 10, 2015
Great top of the line Gas Water Heater - 50gal, 12yr The best I could find for any decent price. Wanted the best because small closet in the garage would not contain the larger units mandated by the federal government (production ceased on all these Apr 16, 2015) Excellent performance, top reliability April 28, 2015
Great Water heater This is a great water heater at a reasonable price. April 24, 2015
easy to install I liked electric starter for pilot light.viewing window made it easy to tell if flame was lit. Very quiet. February 18, 2015
50 gallon waterheater 12 year warranty Good value for the price. Install went well. Did it myself. time will tell how it performs. October 20, 2014
Was simple to install This unit was a warranty replacement for one that was only 2-1/2 yrs old. Bought it from Lowes home improvement who was more than great taking care of the warranty part. Tech support was good once I was able to contact them. The issue I see with these heaters is when they go down parts are not readily available, if you cant get ahold of anyone in the tech service they tell you to refer to their website. And it leaves a bit to be desired getting issues resolved. My suggestion would be if a retailer is going to be a dealer they should stock replacement parts so that one doesn't have to wait for parts deliverly by mail. When your house is without hot water it needs to be fixed quickly May 25, 2014
Good product I have just got it installed, so far it works great. April 15, 2014
easy to install, directions were easy to read easy to read directions, easy to install This review is the "CON of the whole product experience March 22, 2014
The LED panel helpful So far so good, it is too early to make any creditable review. March 16, 2014
Great feature I set up at hot A,but bathtub water only come up warm March 12, 2014

Owners Manual
Comprehensive information about your new appliance - from getting started to cleaning and maintenance - with answers to frequently asked questions.

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Troubleshooting & Repair

IMPORTANT - Read and follow the printed Installation Instructions that came with your water heater. The printed Instructions and product labels contain model-specific information, important warnings and safety notices. If you lack the necessary skills to install, troubleshoot or repair the water heater, get help from a qualified person.

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