40 Gallon Tall Natural Gas Water Heater - 9 Year Warranty

40 Gallon Tall Natural Gas Water Heater - 9 Year Warranty

Model: N40T91-403    Lowe's Item* #: 333570


  • 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:62.00"
Weight:127 lbs.
Vent Type:Type B Double Wall
Vent Diameter:3"
Configuration and Overview
Capacity:40 Gallons
Family Size:4
Energy Star Certified:No
Energy Factor:0.59
Annual Cost of Operations:$277
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:0.59
40 Gallon Natural Gas Water Heater - N40T91-403 4.5 5 309 309
Good Product So far its working fine, no other comment at this time May 22, 2015
This product has great features We recently bought this water heater. Haven't had it long. The water is hot and recovers quickly. The water heater is attractive and hope it has a long life May 17, 2015
Easy install, and great features. I installed this water heater with the help of a friend who is a contractor. It took less than 45 minutes for the tank to fill and for the water to reach the desired temperature. The easy to light piezo electric igniter for the pilot light is a nice feature and is a huge bonus. No more using matches or open flames. May 17, 2015
Easy install, quiet operation Easy to install, matched old water heater. Quiet operation. Seems to have enough hot water. May 14, 2015
this product is really good and efficient. This product is efficient and easy to install, reduce my electric bill. May 14, 2015
the new features My old water heater had none of the newest features. I like that you don't need a match to light if it goes out which I hope will never happen. It's much easier to use than my old one. May 7, 2015
Only been three days! Only been in three days. So far works great. I have Hot Water!! April 30, 2015
Great ratings, reasonably priced! Efficient! Looks great, designed with blinking light. Easy to set control. April 27, 2015
Easy to Install This product is easy to install and operate. My only complaint is that it is noisy while boiler is heating the water. I have it in the basement and can hear it upstairs. April 26, 2015

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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