40 Gallon Short Natural Gas Water Heater - 6 Year Warranty

40 Gallon Short Natural Gas Water Heater - 6 Year Warranty

Model: N40S61-403    Lowe's Item* #: 333567


  • 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:52.25"
Weight:132 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:No
Warranty Tank:6 Years
Warranty Parts:6 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 - N40S61-403 4.5 5 611 611
installed 1/26/2015, today is 3/1/2015, so far so excellent So far this product has served us well, plenty of hot water and quick recovery. March 1, 2015
Easy Installation This a good product easy to install. Like the senor on front for trouble shooting. March 1, 2015
easy to understand and looks great the ease of use for setting the temp and instructions to operate are very user friendly March 1, 2015
easy to install and use we bought this water heater from lowes to replace the same make/model that we had. the previous one only lasted 3 years so we are hoping for longer this time. easy to put in, easy to use, and works great are the benefits. the drawbacks may be quality. February 28, 2015
impressed with product I would recommend this product to family or friends February 26, 2015
good price. easy to install when my existing water heater began to leak i was troubled at first as i had no clue as to which heater to purchase. at local store and on line i found this product to be affordable and easy to install. less than two hours later my wife and i were back in hot water, so to speak. February 23, 2015
great features along with affordable great price and design easy to install and very easy to light February 22, 2015
This product is great What I love about this product is how simple to light the pilot light. It has a light to let you know when it gets lighted and the light keep blinking to let you know its lighted. February 19, 2015
Easy to install. The heater is good, would like to have a separate port to connect our re-circulating pump to it. Otherwise the unit if fine. February 19, 2015
GREAT PRODUCT This water heater works great, absolutely love Whirlpool products, would highly recommend this product to anyone. February 17, 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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