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 5 213 213
perfect just the right size it was the right size ,easy to move around and a piece of cake to hook up January 18, 2015
Easy to install 3 wires and 3 pipes and your done installing it. It is easy to program. This is my second Hot water heater from whirlpool. January 16, 2015
Excellent service from Lowes This Whirlpool has great features The design and quality seems to be what we need and want January 15, 2015
Great deal all around. The product met all of the qualifications I was looking for in great price, extended warranty and it actually looks great which is just an added bonus. I feel very comfortable with the installation and through the process now have a plumber I feel good about. I expect a long life for the heater. January 13, 2015
WATER HEATER FOR 2 BR RESORT CONDO So far we are pleased with the quality and efficiency of this unit. Opted for a 40-gallon unit to replace an old 52 gallon heater. Seems efficient with quick recovery. January 12, 2015
Simple to install, great looking, very good features The one thing I noticed was a locking symbol that the instructions said would go off or on by depressing the corresponding control for three seconds. That does not happen, the locking symbol stays on all the time. January 8, 2015
very light weight and easy to install. Directions for installation pretty good, a little vague with computer programing setup see above, computer programming part a little vague inn explanation as to icons on water heater and direction showings January 3, 2015
Great product seems to be great product for the money love the digital display/controller December 28, 2014
Excellent customer service/easy install/12 yr warranty works I got this to replace a similar model which had shorted out the upper element after about 6 years. Dealing with customer service was easy. They found my registration in their system right away and, since I had gotten it at Lowe's and installed it myself, sent me back to Lowe's to swap the defective heater for a new one at no charge. Kudo's to the service staff. Lowe's gave me the updated model but all the water and electrical connections were in the same place. Install took about 30 minutes. The new one is a kind of stainless steel color (but painted metal). I think the classic white is better for a product like this. Pay a few dollars more for the longer warranty over the 5 and 8 year models. The 12 year tanks also have more efficient operation. Don't forget to drain your HW tank from time to time. When I removed the defective one, there was several inches of sediment. December 19, 2014
Easy standard connections Haven't had unit long enough to compare energy use. Easy programming features. December 12, 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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