Ratings & Reviews for A.O. Smith Signature 100 40-Gallon Short 6-year Warranty 3800-Watt Double Element Electric Water Heater
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this water heater for rapid hot water delivery, easy installation, and trusted durability. Most highlight hot water availability within 30 to 90 minutes and note the 40-gallon model suits households of 2-4 people well. Many emphasize straightforward setup even without professional help, with DIY installation frequently mentioned. Reviewers express strong confidence in the product's longevity, citing the 6-year warranty and foam insulation. A small group reports thermostat defects, tank leaks, or pressure valve issues, though these remain infrequent. Overall, most customers consider this a reliable, user-friendly choice.
Customer review summary generated by AI, including incentivized reviews.so far so good
Would Recommendgood price. quality seems good so far. connections seem solid
From aosmith.com
Not So Happy With Last Unit Installed
Would RecommendOn 12/26/2019 Installed Model E9-40R55DV Ser. # 191511469093 On 12/28/2025 I Noticed An Internal Leak Comming From The Outer Metal Frame Leaking Out The Top Of Unit. The Leak Shows Signs Of Water Damage On All The Screws On The Top Rim Of Unit When I Removed The Top Grommet Water Was Leaking Out Had To Replace With New Unit. The Model I Just Registrated. Hope To Get Reimbursed for new unit.
From aosmith.com
Water is hot but leaking tank
Would Not RecommendI brought this product 3 days ago and it has leaked from the tank nipple since I had it installed. At least the water is hot.
From aosmith.com
Hot Water Heater Easy Install
Would RecommendLooks well built, installation was a breeze, matched well with space vacated by old unit.
From Signature 100 50-Gallon Short 6-year Warranty 3800-Watt Double Element Electric Water Heater Verified Purchaser
Good quality and features
Would RecommendVery easy to install. Fit right into footprint of old Heater. Would recommend to others.
From aosmith.com
.
Like that its slimmer then the one i previously had, hope this one last more then just 6 years.. These things are getting expensive!!
Verified Purchaser
I like it because its small fits just right
Would Recommendbought it today works great fast on heating the water
From aosmith.com
Have help.
Would RecommendGood straight forward installation. Works like a hot water heater should.
From Signature 100 50-Gallon Short 6-year Warranty 3800-Watt Double Element Electric Water Heater Verified Purchaser
Great Features
Would RecommendI like the the features of the product and the warrranty.
From aosmith.com
Great!!
Would RecommendIt was easy to install… heats up quickly………………………………..
From aosmith.com
I loved the 3800 Watts
Would RecommendI just bought it today but I have friends in the plumbing business (I am in the electrical business) and they all said A.O.Smith is the right buy!
From aosmith.com
Works great
Would RecommendPurchased on July 5th, 2025 and it work great as it as installed.
From aosmith.com
Good Product
Would RecommendThe install went smooth and easy. I hope this one last as long as the previous one. Both made by the same company. Reliable products. Ryan at Lowe's in Clearwater was super helpful, he gets 10 out of 10 in my book.
Verified Purchaser
Super Quiet
Would RecommendI have installed this a couple of weeks ago and couldn't be happier so far.
From aosmith.com
Easy Installation, looks great.
Would RecommendJust installed. So far so good. No leaks anywhere. Easy installation, great appearance, great product.
From aosmith.com