Ratings & Reviews for A.O. Smith Signature 100 40-Gallon Tall 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 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.Okay, but...
Would RecommendPickup and installation were both no issue at all. The first day the hot water seemed much hotter than it should have been. It was scalding hot, even though the thermostat was set for 120 degrees. The following day we had no hot water at all. When inspected, we saw that the safety switch had been triggered. Had to call the company. Tested the elements and there was an issue. We were without hot water for a few days while we waited for new elements to be delivered. When we changed the parts, we s...
Verified Purchaser
VERY GOOD
From Signature 100 50-Gallon Tall 6-year Warranty 3800-Watt Double Element Electric Water Heater Verified Purchaser
From Signature 100 50-Gallon Tall 6-year Warranty 3800-Watt Double Element Electric Water Heater Verified Purchaser
New
Would RecommendEasy to purchase and pickup
Verified Purchaser
Great
Would RecommendTHE CONTRACTOR OF MY NEW HOUSE INSTALED AND WE ARE HAPPY.
From aosmith.com
THE PRICE IS GOOD AND ITS A AWESOME TANK
Would RecommendFrom Signature 100 50-Gallon Tall 6-year Warranty 3800-Watt Double Element Electric Water Heater Verified Purchaser
Not too sure since this is my second unit.
I originally purchased one on 2/1/26. It was installed 2/2/26. I had no hot water until 2/12/26 when they installed a new unit!!!!
From aosmith.com
WATER HEATER INSTALL
Would RecommendSO FAR SO GOOD. EASYJOB TO INSTALL COUPLE HOURS ON WED AFTERNOON
From aosmith.com
Great water heater
Would RecommendEverything working great.
Verified Purchaser
AO Smith was my choice
Would RecommendMy old Hot water heater made by GE but was 18 years old but still producing hot water like it was new. I was required by my homeowners insurance policy to replace it because of age. I chose AO Smith because of historic quality. I installed it 2 hours ago and I now again have hot water. Iam in process of sending photos and proof of purchase to my insurance company.
From aosmith.com
excellent look
Would Recommendvery easy to install and looks and operates great glade I purchased it
From aosmith.com
water heater
Would RecommendFrom Signature 100 30-Gallon Tall 6-year Warranty 3800-Watt Double Element Electric Water Heater
it matched up perfectly to existing lines, an easy push and pull.
Verified Purchaser