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 5 216 216
Makes Water Hot Product appears to be of good quality. It makes water hot, just like it is supposed to do. October 19, 2014
Over all good value for the money,reliability however remains to be seen Beginner install. Good instructions.Well built .Not too heavy. Pilot lit first time.Reliability-remains to be seen. October 2, 2014
works well, installation manageable We installed this ourselves - husband has plumbing experience. Not bad on installation, product works well. October 2, 2014
easy to install This was the closest to the dimensions of the water I was replacing. September 26, 2014
Excellent product. Supplies plenty of hot water even when more than one person taking a shower at one time. September 26, 2014
This product has good features Installation went well and the unit is working well so far, only had it for two weeks. September 22, 2014
easy easy easy Super easy to install. Works fabulous right out of the box. September 16, 2014
Easy install, good reputation I checked reviews on the models in my local Home Depot and Lowes, this model was a clear leader. Just installed today, works good, came with TP valve installed, pipe insulation. Electronic ignitor, click the button for spark, an led flashes when lit. It is smaller diameter than the same 50 gal it replaced, made it easier to install in my tight spot of 23.75 width. September 15, 2014
Working great! It is doing a wonderful job! I like the ease of lighting and the up front temperature control is simple to use. With the better quality burner it needs a bit more care than the old style heaters but the reheat time is pretty good. September 4, 2014
Only one complaint After our new water was installed we find it does not deliver hot water at the same volume/pressure as our older heater. September 4, 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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