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Signature 100 40-Gallon Tall 6-year Warranty 3800-Watt Double Element Electric Water Heater

Ratings & Reviews for A.O. Smith Signature 100 40-Gallon Tall 6-year Warranty 3800-Watt Double Element Electric Water Heater

4.5
138
Review
 4.5 out of 5
138 Reviews


93% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise this water heater for reliable performance, effortless installation, and strong value. Most highlight how simple the setup was, with connections matching perfectly and minimal adjustments needed. Reviewers consistently report ample, consistent hot water output, with the 40-gallon capacity and 3800-watt element heating rapidly even in smaller homes. Many replaced units that served over two decades, noting improved performance. Several chose based on brand reputation for durability and longevity. A few mention concerns about the plastic drain valve durability or isolated noise issues, but these are rare exceptions to overwhelmingly positive feedback.

Customer review summary generated by AI, including incentivized reviews.
138 Customer Reviews

No comment

Would Recommend

Merchandise good price

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heater up grade

Would Recommend

This unit is my replacement, fits right in the same place, did not have to change much except water line connections. Started right up

June 2, 2023

From aosmith.com

Easy Install

Would Recommend

The installation was super easy and it filled up very quickly.

May 26, 2023

From aosmith.com

Disaster

Would Not Recommend
May 25, 2023
Verified Purchaser
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Decent

Would Not Recommend

Bought and installed 4/2023 - It works fine and probably will for a while. Definitely not built for longevity. Assembly quality was not great. Stripped bolts, bulging insulation, warped plastic and slap dash. I am sure it will be fine for its use but won't buy this again.

April 22, 2023
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Response from Published by the A. O. Smith Team

We're sorry to hear there were issues with the water heater you purchased.
We'd like to get some additional information about these iss...
Read More

Published by the A. O. Smith TeamApril 24, 2023

Works Great!!!!

Would Recommend

This is one of the best hot water heaters around. Works flawless, and my last AO branded water heater lasted almost 14 years!!

January 30, 2023

From aosmith.com

Poor help

Would Recommend

Waited 35 minutes for an associate to help me in electrical department, even after i went to customer service to ask for assistance. Had to go a second time and ask for help from flooring department. Flooring associate was excellent, got someone right over to help me.

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Response from Published by the A. O. Smith Team

Since your complaint is about the service at Lowe's, and not the water heater, please contact the management team at that Lowe's store to add... Read More

Published by the A. O. Smith TeamDecember 5, 2022

Knew it was a quality brand....... A.O. Smith

Would Recommend

I replaced a 30 gallon tank with the 40 gallon and couldn't be more happy. Did it myself and it was very easy to do. I just made sure the element wattage matched my old unit so I didn't have to modify my breaker panel.

November 24, 2022

From aosmith.com

Easy to install

Would Recommend

I just installed the water heater I hope it will save me some money

November 2, 2022

From aosmith.com

easy install and good price

Would Recommend

looked easy to install, was the same size as my old Rheem tank so it didn't take much plumbing to get everything lined up. my plumber says that most people get leaks around the in / out ports because they use white thread tape and you should be using the yellow thread tape made for metal screw together fittings (hope that helps some one.)

October 5, 2022

From aosmith.com

very good features

Would Recommend

Needed to replace 16 year old water heater-this filled all that was needed

August 23, 2022

From aosmith.com

Great Product.

Would Recommend

I Bought this water heather 10 year ago. Now is a time to replace and i bought the same brand.

August 19, 2022

From aosmith.com