40 Gallon Energy Smart® Electric Water Heater - 12 Year Warranty

40 Gallon Energy Smart® Electric Water Heater - 12 Year Warranty

Model: ES40R123-45D    Lowe's Item* #: 345708


  • Touch screen electronic user interface makes it easy to set temperature, operating mode, and engage safety lock feature
  • Choice of operating modes; Standard, Energy Smart® (intelligently reacts to hot water use patterns to reduce standby heat loss), and Vacation saves you money while you are away
  • Electronic thermostat employs thermistors to sense temperature, and has no mechanical parts to wear - making it more accurate and reliable than conventional thermostats
  • SmartPort equipped, means Energy Smart® is smart grid ready for future utility management, as well as plug and play ready for home automation applications
  • Premium incoloy stainless heating elements are more efficient and last longer than conventional elements
  • Extra thick environmentally friendly polyurethane foam insulation reduces heat loss for maximum efficiency, saves money
  • Self-cleaning dip tube reduces tank sediment, ensuring long tank life and optimal efficiency
  • Dry fire protection ensures the installer does not accidentally burn out the upper element when power is turned on, if the water level in the tank is not full
  • Factory installed temperature and pressure relief valve ensures safe operation
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Product Dimensions
Weight:116 lbs.
Configuration and Overview
Capacity:40 Gallons
Family Size:3
Energy Star Certified:No
Energy Factor:0.95
Annual Cost of Operations:$555
LCD Display:Yes
Self Cleaning:Yes
Warranty Tank:12 Years
Warranty Parts:12 Years
Warranty Labor:1 Year
Max Wattage:4500
Emissions Standards:No Emissions
Foam Insulation:3 inches
Water Connection Location:Top
Water Connection Size:3/4 inch
T&P Relief Valve:Yes
Energy & Eco-Friendly
Energy Factor:0.95
Energy Smart®:Self-Diagnostic Electronic Control
40 Gallon Electric Water Heater - ES40R123-45D 4.7 5 181 181
easy to use features was easy to install and to set up controls were easy to use.like the energy settings September 7, 2014
excellent water heater in all respects Installment was a breeze. This was a replacement for the same model which lasted just over 12 years with no problems. this is my third Whirlpool in the past 35 years. all around value in all aspects is exceptional. this unit was purchased at Lowes. September 2, 2014
Nice looking unit I know no one looks at the water heater once it's installed, until it breaks, but it is a nice looking unit. Easy to install and runs silently. Been in 5 days now and works great. August 29, 2014
Seems like avery good product Picked the unit up at Lowes, It was packaged well, instructions were very easy to understand, installation was a breeze, heater looks very good, nice display which is easy to read and change settings, I like the lock portion on the display so kids aren't able to change the settings. Overall I am very pleased with the heater, although I haven't had it long enough to tell much about the operation and longivity, but so far so good. This is my second whirlpool in a year, as I have two installed in my house, my first one is working like a charm. Thanks for a good product August 28, 2014
looks great, and will save electricity, and easy to use We think it was simple to install, and is easy to use, and should reduce electricity consumption August 14, 2014
this product has great features, I am impressed Just had this model installed so I don't exactly how much I will be saving but I love the fact that I control the programming and can put in vacation mode when I am away. August 6, 2014
Good value if it is reliable in the future. Bought on sale at 20% off. Only problem encountered was the running of the drain line for the emergency relief valve since most older tanks had the relief valve on the top rather than the front of tank, Since the drain must run downhill front the relief valve, this is an issue if the tank is installed in an area that would cause flooding if the tank failed. If the tank is installed near a floor drain or in an unfinished garage, this isn't an issue. Only time will tell if the extra cost for the 12 year warranty is worth it. August 6, 2014
So far so good Having abandoned tankless water heaters(should be called thankless water heaters)have gone back to what I hope is tried and true. Time will tell,hoping for 12 yrs of reliable service. The water heater seems well built with stainless steel heaters and looks like a quality piece. Compared to other heaters I looked at it's good value and liked the fact that it is well insulated. Like I said happy with my purchase but only time will tell. Nice to buy an American made product. Finally,take my advice DON'T BUY A TANKLESS HEATER. August 2, 2014
First unit failed after 3 months After 3 months I got an E02 error (overheat). Customer service was very easy to get to. They sent a new thermostat overnight which did not correct the issue. My electrician/plumber charged me $100 to install this. Next they sent a control module. Again, this did not correct the issue. Finally they authorized a complete swap out. My electrician/plumber charged me $140 to do this. So far so good. This seems to be a very nice product and I hoping that it lasts. July 28, 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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