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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

Good value

Would Recommend

Water heater comes with top mounted T/P valve. I needed to use 0ptional side mount and was told that I must use valve provided in side position to keep warranty. Valve extends very far out of the side of the unit. Not a good look. Could not provide a shorter valve or recommend an alternate.

July 21, 2022

From aosmith.com

Excellent water heater

Would Recommend

Works good. great product. should last a long time.

July 4, 2022

From aosmith.com

good features

Would Recommend

The only thing I don't like about this water heater is that the water spigot on the bottom is made of plastic and I'm afraid that it will easily break if something bumps into it.

June 14, 2022

From aosmith.com

Works for Me!

Would Recommend

This water heater has less wattage than the more expensive one but if you don't have alot of people in your home, it really doesn't matter. It's taller than my old AO Smith one but fit in OK.

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JUST RIGHT PRODUCT

Would Recommend

IT WORKS GOOD SO FAR..JUST INSTALLED IT 2WEEKS AGO

May 16, 2022

From aosmith.com

better fit

Would Recommend

i bought this march 19th,2022 and it fit great inside my laundry room and was simple to hook up!

March 23, 2022

From aosmith.com

Easy install

Would Recommend

Well built product only thing the drain valve is plastic

March 18, 2022

From aosmith.com

Nice water heater

Would Recommend

the water was easy to install. It was the same size as old water heater.

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Replaced both elements in my new water heater

Would Not Recommend

Piece of junk. How is this acceptable? its been less than 60 days and I have had to have a service call out twice! I am so unhappy with this "new" water heater!

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Response from Published by the A. O. Smith Team

Replacing the elements is such a short period of time indicates the heater was dry fired. Dry firing is when the elements are powered when the tank i... Read More

Published by the A. O. Smith TeamOctober 27, 2021

no leak

Would Recommend

I had this installed recently and am happy with the results

September 24, 2021

From aosmith.com

Good Product

Would Recommend

Why put serial number and Model number so low on the unit that you need to be on your belly to read them?

January 13, 2021

From aosmith.com

Great Value

Would Recommend

Needed a special order water heater, for a Manufactured Home. AOSmith had just the one we needed. All of the connections matched up perfectly ! Excellent price also.

December 17, 2020

From aosmith.com