40 Gallon Tall Natural Gas Water Heater - 6 Year Warranty

40 Gallon Tall Natural Gas Water Heater - 6 Year Warranty

Model: NU40T61-403    Lowe's Item* #: 333578


  • 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 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
  • Ultra Low NOx

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Product Dimensions
Height w/Draft Hood:62.25"
Weight:129 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:Ultra 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
Ultra Low NOx:Meets SCAQMD Rule 1121
40 Gallon Natural Gas Water Heater - NU40T61-403 4.3 5 92 92
Good Product Overall installation went well. The connections on the top of the unit to hot and cold lines were tricky to seal the first time. Everything else was straight forward. March 20, 2014
I had good experience with a similar Whirlpool product This water heater is replacing a similar water heater with same 6 years warranty that lasted over 10 years, with the hope that it will do the same or better... March 9, 2014
Love the ignitor Installed easy had hot water within 20 minutes from start up. Unit went right in with little issues. Just installed tonight so I can't comment on energy savings or reliability. February 24, 2014
All enclosed is nice feature After reading the reviews this water heater was my choice. Now that it has been installed for one month, I have not experience any of the negative comments. For me I replaced gas valve, gas line, water valve and both water line with new flex lines. February 22, 2014
Could not be easier Had to replace the water heater. Went to Lowes. Bought the unit. Brought it home had it installed in less than two hours. We have hot water. Great. February 16, 2014
easy to follow this product and its instruction where easy to follow, had no problems at all. one of the easiest products to do. February 16, 2014
Product meets my expections. Bought product at Lowe's. The installer from Lowe's was very professional - as he proceeded with installation he explained the important points and precautions to be observed. He was very professional and was easy to understand - should have no problem with the product. Lowe's price and quick installation took care of my concerns and questions. February 12, 2014
Easy Install The water heater was easy to install. I sure wish the nipples and other attachments were automatically in the purchase of the actual water heater itself and no other purchase or trip necessary to the store. Still too early to tell about the reliability since I just installed it two days ago. February 8, 2014
Good product, very quiet, heats fast. I replaced an old unit from another brand with a Whirlpool but experienced a severe jet enginelike noise. Returned it to Lowe's and installed this one. It works great, as expected. I recommend it for a 4 person household. It was easy to install but should come with intake and discharge fittings, customer should not have to install them. January 28, 2014
This is a very nice product. I am very pleased with this product. The design, quality and ease of use are excellent. January 22, 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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