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 5 510 510
A fine water heater it's a water heater what more can i sayit's been installed for almost ten days August 15, 2014
Great product, easy to install I purchased one like this 11 years ago and have had no problems with it. I replaced it because it is getting old and the new one will cost less to operate. August 15, 2014
Great an easy to install Easy to install which took me about 45 mina to an hour to get done with, an very easy to start to start up. August 15, 2014
Good product, reliable company I've owned and installed many Whirlpool products over the years. We currently own 15 rental properties so, we buy quite a sizeable number of appliances and water heaters over time. The unit confirms our experiences with previous Whirlpool products, i.e., that they are well designed and well manufactured. While they are not the least expensive units available, to me, they are the best value for the quality received. I particularly like the new "push button" lighting system for the pilot light and I was pleased that this unit came with the T & P valve installed. I was also happy to find that the pipe connections were in essentially the same positions as my old heater making the installation pretty straight forward. August 12, 2014
Easy To Install Old 1996 Rheem started leaking from bottom. Rush out and got a made in america whirlpool! Up and running with in 3hrs. August 11, 2014
Worked for its intended use. Worked for its intended use. No problems with the water heater itself. Working in a crawl space made installation a bit of a challenge. August 10, 2014
great design.. easy to install Product was easy to install and is a great looking replacement for my old unit that had did its due...I love the easy pilot light ignition..worked like a charm the first try..much easier than my old one...I also like the control panel with operation indicator light..let's you know if something is wrong with one quick look..I will say though that I was very disappointed with the in store service I received at the LOWES store in CROSSVILLE TN...poor care for the customer..and not very knowledgeable with the exception of one gentleman who I finally found on the 3rd try..but that IS NOT a Whirlpool issue...product is great.. Just not impressed at all with the LOWES store in CROSSVILLE Tn...but then again..never have been August 9, 2014
Very reliable and efficient product This water heater is very easy and straight forward to install. It also is the most efficient heater I've used. Very easy to start and in less the one hour had hot water. Could not ask for a better product. August 8, 2014
ez lite pilot no matches or lighter needed to lite pilot. the short model nearly matched up to the old heater I was replaceing. August 5, 2014
Very good This is my first time using whirlpool water heaters. I did like the Model, it has a good rating and also the price is very reasonable. I'm the owner of multi-families housings and I will buy more water heaters for my units. August 3, 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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