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

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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 5 230 230
It works but re-tighten Anode Rod and TP valve My old Whirlpool water heater gave me 10 years of service before the thermocouple went out. I decided to just replace the whole thing for a piece of mind and bought the same Whirlpool brand. Unfortunately, the new one leaked where the Anode rod and T&P valve is located. I had to de-pressurize the tank and then remove the Anode rod and T&P valve and put plumbers tape on the threads. That stopped the leak but I had to clean up my wet basement. November 21, 2014
Good Value Only had the unit for 3 days but so far so good. The reviews were good and I got what I paid for. Can't ask for much more. Only time will tell how it stands up. November 16, 2014
This product has good features pressure relief valve installed was not straight to the floor. November 12, 2014
easy to install This my first experience to use this heater in my house November 9, 2014
super eacy It was easy to install and has been a great upgrade to our house! November 6, 2014
Features are great So far it is very reliable and it has lowered my energy bill. Love the igniter button. November 5, 2014
easy to install Will purchase whirlpool for all my property. Great features for a low wen price. November 4, 2014
Good Water Heater More efficient than our 12 year model that finally developed a leak in the pressure relief valve. Decided to replace rather than repair and this seemed to be a good model. November 4, 2014
Whirlpool 50Gallon 40000 BTU Water Heater Purchased this product after a 12 year old RHEEM unit flooded out my garage 3 months after purchasing my first home. Heard some nasty stories about RHEEM MACHINES these days so opted for the well reviewed Whirlpool. This was my first install ever of a water heater and everything went off without a hitch. Took me 5 hours from my driveway, too go buy it, to having hot water in my home. Easy install, pilot fired in 45 seconds, burners are quiet and powerful. All is well for day 1...hopefully all goes well for 10 years. We shall see. November 3, 2014
So far it works great,and easy to install I shopped several waters before I purchased this one. I checked all the reviews and specs. and I have used Whirlpool products before and thought it is the best buy. My old water heater lasted twenty years! November 2, 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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