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 5 631 631
Love the new features compared to the 10 year one we replaced Love the clean look and new setting capability and the ease in lighting the pilot March 23, 2015
WAs easy to install and light. Was easy to install and light. First night so I can't say much more. March 22, 2015
Probably a Good product, Horrible Store Purchased at Lowes and was given bad information by the Salesman. He told me the following: * controller contains a 9 volt battery (NOT) * the warranty is OK if used in a 2 family apartment (NOT) * the warranty is for parts only - no labor. However when I checked online there is 1 year parts & labor then 5 more years parts only. Parts need to be removed and sent back to the manufacturer to evaluate before new parts are sent. How long will this take? Who wants to be without Hot Water for weeks or even days while the company decides if you are worthy of a new part? I think it's a good water heater as long as it doesn't break down. I would not recommend that anyone buy from Lowes. March 21, 2015
Huge improvement over 20 yr. old tank it replaced. Well made; well insulated; up-to-date controls; easy installation; would be better if it came with dielectric nipples factory installed as the wells for the cold and hot water ports are too low in the wells to allow a wrench access to tighten solder or compression adapters. Also cold water tap seems to be a bit off center so pipe nipple went in on a slant. March 20, 2015
Easy to Install, so far so good! I've installed plenty of hot water tanks and this install was typical with no problems. Price was a great. "Do no forget to purchase 3/4" nipples for install". My only concern was actual estimated annual energy draw which seemed high. I guess we'll just have to wait and see. This is not an energy star type tank so there are no rebates. Unit is running great and hope to get many years out of it. March 20, 2015
Great product, water gets exxxxtra hot! My Dad came when our old hot water heater (5-6 years old) started leaking. He said, "These things used to last 20 years." The guarantee is for six years. Our water must be much harder/calcified than in the country. A good invention would be when a hot water heater starts leaking, an automatic sheet should slide across the bottom to ensure no leaking/flooding in case people are away when this happens. Fortunately, my wife noticed the leaking after two days. March 17, 2015
The push-button pilot-light igniter with view port is my favorite feature. I'm not sure I can provide a fair review at this time as I have had this product for less than a month. However, I have always found Whirlpool products to be fairly reliable and hopefully this will hold true for this product as well. I chose this product for the features, energy efficiency and ease of installation. I particularly like the push-button pilot-light igniter with view port and the blinking indicator that gives function/trouble codes. I was so tired of lying on the floor to light the pilot light with a match and then not being able to see if it was lit. I am satisfied with this product thus far and am hoping I will see a savings on my utility bill that will make up for the price. I feel the price is a little steep considering it only has a 6 year warranty and does not include the hook-up kit. March 17, 2015
everything needed was there and worked well Good product was easy to install, appeared to be of fair to good quality and hope it performs well and lasts as long as the previous one. March 16, 2015
This is replacement to the other one I had for several years Great water heater I would recommend it to anyone IT WAS EASY to install and reasonably priced. March 14, 2015
Second time around This is a replacement for an identical unit purchased 2 years ago. The first unit developed rusting and then a leak at the cold water intake. A call to the warranty center was handled by a very helpful young lady who suggested that it could be a problem with the nipple and recommended that we swap it out for a new one. That did not work and a second call to the warranty center resulted in a return authorization being issued. We brought the old unit back to Lowes and they exchanged it for a new one without any problem. Although I am disappointed that the first unit failed I am very pleased with the warranty coverage (although I don't understand why the sales tax was not included in the exchange). March 12, 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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