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 5 250 250
I like the ease with wich you can change temp. and choose vacation mode. It has only been used for four hours, but it works and installation was easy. June 26, 2015
great product Installation was easy. I had to modify the location some but after that it was cake. After the tank filled and lines were flushed and reading the direction on wiring I hooked up the power an the unit fired up. Within 15 minutes we had some hot water. I'm very happy with this water heater and it was time for anew one. The only problems I had was waiting on th folks at lowes to get the darn thing to the front of the store. June 23, 2015
Excellent control panel design Purchased this water heater because of the front control panel with ability to set water temp, vacation mode, etc. June 20, 2015
Looks nice. Looksmart. Good warranty. Haven't had it long enough to give decent review, however,so far, I'm happy with it. June 20, 2015
Good Features Only installed 3 days and seems to be fine... Would like reminder to review in 6 months and 1 year intervals... June 18, 2015
This water heater has great features The water heater was very easy to install. I really like the features, especially the "vacation" feature, which we use whenever we are going to be gone for several days. June 17, 2015
Easy to install This was a good experience. I am a do it yourself type and this was easy. Worked just as hoped. Looks like a quality product. My 2nd whirlpool water heater , 1st was a 9 year and lasted 11 years. This is a 12 year and I am confident it will do 15. June 15, 2015
Great water heater This is a great item! Took no time to install and get up and running with all of the technology it has to offer. I'm looking forward to using some of the features but so far the wife is thrilled that it fills our new deep basin sink with plenty of hot water without hesitation. June 11, 2015
This product has great features. After researching hot water tanks, we chose this one because of 12 year warranty and vacation setting. The price was very reasonable compared to others. The plumber installed it easily and it only took 1.5 hours including removing the old tank. In two months have not seen an increase in electrical bill. June 3, 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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