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 5 282 282
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
Good value for the money Easy install and product feature use. Install time from pickup at store to hot water at the tap was three hours. March 11, 2015
This product seems very efficient, it heated a cold tank very quickly. I just purchased this unit, but so far it has fulfilled all my expectations. The status light feature is a good idea. March 9, 2015
Ease of installation This appliance was easley installed. Instructions were easy to read and follow March 9, 2015
Like the features Likes Lowes next day service. Once again looking forward to hot water. March 5, 2015
First time replacement This is the first time I have personally had to replace a water heater in my home. The install was uneventful, and the new unit gave us no trouble during the install. February 25, 2015
I like the new gas valve. you dont have to use a match to light the pilot Easy to install. Almost the same size as my old heater. February 24, 2015
Just recently installed the unit but initial performance is great I replaced an older model Whirlpool water heater with this unit and the performance is great. The heater controls appear to be more accurate to my desired temp settings and in the short time that I have had it installed, I have noticed that the gas burner seems to come on less frequent and stays on a shorter time. Therefore I assume my gas bill will be proportionally less. February 23, 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