50 Gallon Tall Natural Gas Water Heater - 9 Year Warranty

50 Gallon Tall Natural Gas Water Heater - 9 Year Warranty

Model: N50T91-403    Lowe's Item* #: 333571


  • 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 is 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

Shop NowAll products available exclusively through Lowe's Icon
Product Dimensions
Height w/Draft Hood:60.75"
Weight:148 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:Yes
Warranty Tank:9 Years
Warranty Parts:9 Years
Warranty Labor:1 Year
BTU Input:40,000 BTUs
Emissions Standards: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
50 Gallon Natural Gas Water Heater - N50T91-403 4.5 5 289 289
Great Product Another great Whirlpool product added to our home. When our hot water heater was going, there was only one name brand I looked at. As with our other appliances from Whirlpool, this one was a great value and easy to install/hook up. The installation took no time at all, and the manual was easy to read and understand. The pilot lighting instructions were easy to start and the LED status indicator is a great option to have to understand your water heater status. I like the tall thin profile of this unit and sits better in the space than my prior heater. All around a great product and so very happy with Whirlpool! April 7, 2015
Good overall The only problem was during initial instillation no mention on the carton showed I needed nipples for tank to supple lines cost me an extra trip to home center. April 6, 2015
Nice unit Quiet, delivers what is expected. No issues, hope it lasts. April 5, 2015
great product Easy Installation. Hot water in no time. Competitive price. April 4, 2015
What can I say, it's a water heater! Had this unit installed by licensed plumber. It is third Whirlpool unit installed in a 20 year time frame. Price was good, installation charges were almost as much as the water heater, but they pulled all the permits and installed a couple of new valves that needed replacing and hauled the old unit away. Took only 45 minutes which included removing the old heater, and installing this new one. I'm very pleased with the Lowe's contract installer who installed this unit for me. April 4, 2015
new waetr heater i bought this hotwater heater due to my being a service tech, many years ago.. and know the products are well, made to last April 1, 2015
Don't like flashing lite system Only had it one(1) day! How can I make a knowledgeable review??? April 1, 2015
excellent appliances This product is a true reliable and dependable product. I highly recommend them who ever want to install or buy them. March 30, 2015
This product produces hot water We had it installed because the old Hot water heater was leaking. This one is not leaking and it seems to be more efficient. March 29, 2015
This Product I purchased this water heater to replace my previous. It is too early to tell how well it will last. The product was easy to install, and the quality seems to be there. I would have liked to pay a little less for the heater, but I needed something quick. March 22, 2015

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

You may need to install Adobe Reader  Adobe Acrobat Reader to view these documents.

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.

You may also like