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 5 196 196
great water heater we installed this water heater with ease. we did want the company to deliver it and install it as the advertisement stated but that is false. also the so called rebate that comes with it is for only customers that had a gas water heater transferring to electric water heater, but wasn't described on the rebate paper. the price is a little high but worth it from what little time we have had the water heater. November 24, 2014
This waterheater had everything I was looking for and I was sold on the warrenty offered. I have other Whirlpool appliances and have come to have great confidence in there quality and performance. November 23, 2014
Decent product for the price The new unit replaced a nearly identical model that we've had for about 9 years or so. The original "EnergySmart" control box sat on top of the tank--the new controller is attached to the side of the new tank. The old one still worked fine except it started leaking from the bottom. We helped with the installation before (a friend is a plumber) but this time we elected to have a plumber from a big box store do the work. The installation was fine but buyers should be aware of one key item. The warranty with the unit for LABOR is only a year or two. The parts warranty is for eleven or so. If the unit fails after 5 years--Whirlpool will NOT repair the unit since the LABOR warranty has expired. We got an extended warranty for parts AND LABOR this time. We won't be misled again.... November 22, 2014
Easy to install and heated to desired temp quickly. I hope this unit will last a little longer than the set warranty. My previous Whirlpool water heater was with the 6 year warranty and it barely lasted the 6 years before the tank started leaking badly. That was with me draining and cleaning the tank each year. We shall see. November 8, 2014
The Size was Perfect for where it is Installed. I Researched Water Heaters when it was Time to Replace My Old One,I chose Whirlpool based upon Comparable Heaters and Chose this One ,it is easy to use so Far and Has a Very Good Warranty. November 7, 2014
Great features with easily read controls. This water heater has all the features I was looking for at a good price. October 16, 2014
Easy to use This is the easiest water heater I have ever used. Install and turn on!!! That is it. October 14, 2014
this product shows promise This water heater appears to have the same advantages my old model ee3j40rd045v had, but with some exceptions. There are three exceptions: 1)the touch screen display is mounted on top of the thermostat has to be removed to hit the reset button. The old water heater had a reset button mounted on the control panel which was easer and superior to this design. 2) The top of the water heater was not marked in any way as to which water connection was hot are cold. My old heater had a "C" and "H" embossed in the top. in fact, this is why I called tech support. I wanted to verify which was cold inlet. 3) Another 12 year heater sitting next to the one I got had been opened and I noticed the inlet outlet tubes had not been installed in the top of the heater. I checked my heater carton and it had no indication if it had installed inlet outlet tubes or not. Based on this I bought an expensive set of new inlet outlet hoses, which happened to have a preinstalled threaded brass pipe on one end of each braded flexible hose. Alas, my heater had tubes installed. When I called tech support, they indicated I could remove the inlet plastic lined tube and install the threaded brass end of my new flexible hose assembly instead and could verify that the right hand tube was the cold water because there was a blue color if it was the top of the dip tube. This was very useful info, since my new flexible hoses were designed to replace the plastic lined tubes in the inlet outlet connections. October 7, 2014
Love the features I really like the updated features of the this unit. The energy smart mode is great. It learns your routine so as to be way more efficient than the old basic units. I also like the 12 year warranty. October 5, 2014
Product is easy to use Just installed today, was fairly easy even for non-plumber. It would be reassuring if water connections were marked H & C. Super easy to setup program. Looking forward to lower electric bills. September 30, 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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