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 5 239 239
seems ok too new to review.. looks impressive, time will tell. May 18, 2015
nice features fine looking heater, hope it last longer than the last one May 11, 2015
Has a lot great features. Like the touch screen, the energy smart mode and the vacation mode. Shows the temperature of the water. Plus the screen locks so I don't have to worry about the grandkids touching it. April 28, 2015
Great features and easy to replace. The material and workmanship in this water heater appear to be very good. The installation was very easy and straight forward. The start up by the electronic controller went without a hitch. April 27, 2015
Pretty good so far Just installed this water heater. So far it seems to working fine. Controls are easy to understand and set. We'll see how well the energy saving setting works and I'll report back after a few months to see if there is a notable difference in my electric bill. April 26, 2015
This product has some great features. I took a few weeks to carefully research hot water heaters and finally settled on this heater with the 12yr warranty. This product has some really great features. It's light enough for 1 person to move around and install. The instructions to install are very good. However, me being an engineer, I always look for what might fail in the future on any type of device I purchase. The plastic drain valve is a little bit of a concern. I know plastic wears out with use. Wondering if it might start leaking later on. It would be good if this was the old type of metal valve. I would feel a little more at ease with it. Time will tell if this is an issue or not. But overall I think it is a great looking tank. It's been working great for the few days that I have had it installed. April 24, 2015
good product easy to install, great features,lower electric bill. April 22, 2015
Too soon to rate I bought this unit to replace a Model #EE3J40RD045V which was purchased, installed and registered on 07/06/2004. It had a limited warranty on the inner tank for twelve years. As you can see, it did not quite make it before the tank rotted-out and began leaking recently and, on the afternoon of 04/19/2015, it began leaking significantly enough to require replacement. Prior to this most recent failure (and many years ago) the electronic control unit failed. You sent me a replacement which, after I installed it, corrected the problem. Since the tank failed approximately 15 months prior to the warranty period, am I entitled to a rebate of some sort? Joseph Poveroni April 20, 2015
For contuinuous use, working good for the week of use so far. Has good features for conserving electricity compared to the old time tanks which are on continuously. I don't expect it to lower my personal energy bill, because my basement goes down to 45 degrees in the winter; during vacation I generally turn off the well pump and hot water tank; the old tank was on a mechanical timer; and I bought a bigger tank. But for the average person, it looks good. April 19, 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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