50 Gallon Tall Energy Efficient Natural Gas Water Heater - 12 Year Warranty

50 Gallon Tall Energy Efficient Natural Gas Water Heater - 12 Year Warranty

Model: ND50T122-403    Lowe's Item* #: 333595


  • ENERGY STAR® Qualified - achieves a .67 Energy Factor (EF), using the automatic flue damper system to assure peak performance
  • Self-Diagnostic Electronic Gas Control incorporates an LED status indicator that monitors and reports on system operational status
  • Electronic Ignition employs an automatic pilot re-light system that shuts off the pilot during stand-by mode to reduce gas consumption and save money
  • Patented Green Choice Eco-Friendly Low NOx Gas Burner reduces emissions by up to 33%
  • Requires standard 120 V electric supply (10' power cord included)

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Product Dimensions
Height w/Draft Hood:63.50"
Weight:155 lbs.
Vent Type:Type B Double Wall
Vent Diameter:3"
Configuration and Overview
Capacity:50 Gallons
Family Size:5+
Energy Star Certified:Yes
Energy Factor:0.67
Annual Cost of Operations:$244
LCD Display:No
Self Cleaning:Yes
Warranty Tank:12 Years
Warranty Parts:12 Years
Warranty Labor:1 Year
BTU Input:40,000 BTUs
Emissions Standards:Low NOx
Ignition Type:Spark to Pilot Ignition
Foam Insulation:2 inches
Water Connection Location:Top
Water Connection Size:3/4 inch
T&P Relief Valve:Yes
Energy & Eco-Friendly
Energy Factor:0.67
50 Gallon Natural Gas Water Heater - ND50T122-403 4.6 5 296 296
12 years of warranty is worthless since the electronics keep failing on me. I am ready to throw it out! I would never buy this unite ever again. For 15 years I had a super reliable unit and replace it with this unit that is out a few times a week. Overpriced and unreliable. December 15, 2014
Good so far Replaced an old 40 gal with this 50 gal heater. Installation fairly difficult due to taller, larger diameter heater with more electrical safety and control features. Bought it for those features and expect to find great value in having them, but installation was more difficult. Used flexible installation kit, which made installation easier. Unit heated the 50 gal capacity surprisingly fast, and seems to be very quick and efficient. Temperature setting at the Hot position (120F) initially and will see if this is adequate. December 11, 2014
Works as advertised right out of the box. Quick installation; had hot water in an hour. Purchased at Lowe's to replace a 75 gallon water heater manufactured in 1993 and in use since then in my home that developed a tank leak. Whirlpool product installed easily, and I made sure gas control/igniter worked for 3 seconds before hooking up the water. I had installed another brand water heater for a neighbor a few weeks ago, but it was defective and wouldn't light. So I had to drain it and return it to the store on a chance the subsequent unit would work because my neighbor needed hot water ASAP. I was not a happy customer having to unhook water, drain, uninstall, and refill with hassle of returning to store. This Whirlpool water heater fired up as expected, so I connected the water, turned it on, and voila'. Operating instructions are easy to read. This is the first, time I installed a gas water heater that has an AC power supply. Some 24 hours after my first tub bath, I'm a happy customer. I'm interested to see how the flue damper holds up. December 3, 2014
Easy to install Product was easy to install and started perfectly. Like the electronic start feature. December 3, 2014
I highly recommend this very efficient, high capacity gas HWH with modern safety and status features. I waited a couple of months to register and evaluate this 50 gallon hot water heater to see how well it performs in comparison with its predecessor. I am very positively impressed with its efficiency and safety features. Both are very satisfactory! I particularly like the electrical damper controlled venting system because it closes the vent path when the heater is inoperative and that saves a lot of heat escape especially during the winter season. It is very easy to adjust the hot water temperature and to set the system into a very energy conservative mode during vacation periods and you do not have to be concerned that anything will freeze while you are away. The LED indicator "slow heart beat flash" provides assurance that everything is functioning perfectly and any other flash sequence provides troubleshooting information. In short, I highly recommend this hot water heater as a replacement for your old 50 gallon gas hot water heater. November 28, 2014
Good water heater This water heater is fine. Made in the USA. I'm not super stoked about not having a battery backup on the unit so that if the power fails, I have to reset it. Installation was a breeze. The T and P valve leaks a little bit after a long reheat. I figured that it would stop leaking after a week or two, but it's been about 5 weeks of very light leaking. Not a big deal, just strange. Good unit overall. November 22, 2014
I like automatic pilot This natural gas heater was a perfect replacement for the 15 year all unit it replaced. This its the first time I replace a water heater and was Easy to install. after checking all the items in the check list provided in the manual, turn the unit on and it work like a charm. Very happy with this unit and its working very smooth. November 19, 2014
The water heater looks good, performs well and has a 12 year warranty. The water heater looks good, performs well and has a 12 year warranty. The product is packaged very well, easy to install, and works as intended. November 16, 2014
OK so far What can you say about a water heater - it heats water! It was on sale at Lowe's when my old one bit the dust - no problem with installation and everything is fine so far. Of course it has only been 4 days, so we will see! November 11, 2014
This is a good product. This is a good product. However, the product stops working properly by leaking at the time we are notified it could break down. that makes me feel like it is made to break down at that time so another sale is required. That makes me feel like product is set up to break down at that time so the Whirlpool can guarantee themselves another sale based on sales of past. November 5, 2014

Energy Star®

Energy Star Qualified
ENERGY STAR® qualified product.

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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