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Signature 100 40-Gallons Tall 6-year Warranty 4500-Watt Double Element Electric Water Heater

Ratings & Reviews for A.O. Smith Signature 100 40-Gallons Tall 6-year Warranty 4500-Watt Double Element Electric Water Heater

4.2
4461
Review
 4.2 out of 5
4461 Reviews


82% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise the water heater for straightforward installation, reliable performance, and strong value. Most report completing setup themselves in under an hour with clear instructions, while many highlight consistent hot water delivery within 30 minutes to an hour, supporting multiple household showers. Reviewers frequently commend the unit's quality and cost-effectiveness. However, a small group encountered defective units with burnt-out elements or leaking tanks, and some experienced frustration with warranty processes. Despite these isolated issues, most customers consider it a dependable, worthwhile purchase.

Customer review summary generated by AI, including incentivized reviews.
4461 Customer Reviews

great service

Would Recommend

candy was awesome

October 8, 2026
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New hot water heater

Would Recommend

I purchased this hot water heater from the Lowes in Vidalia, and the employees were very friendly and helpful. I have not yet had a chance to install it, but it looks good

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Easy instillation.

We bought this a couple of weeks ago. Installation was easy, and the flow rate of our water has improved. We actually had to turn it down; it heats so well.

October 5, 2026
Verified Purchaser
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Water heater replacement

Would Recommend

The employees at Lowe’s helped me with everything! Wonderful service. Hooked it up Hot water in no time at all ! Nice & easy

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Hot water!

Would Recommend

Yay! I have hot water again.

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Garbage

Would Not Recommend

Looks nice when you open the box but that’s about the only thing it can do since it doesn’t heat my water. It was installed at my camp two hours away so I didn’t have the serial number, AO Smith won’t talk to me or send a technician out unless I have it. So make sure you have that serial number! I will be returning this product.

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Response from Published by the A. O. Smith Team

We're sorry to hear of your experience.

We want to ensure you receive the warranty coverage included with your purchase.

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Published by the A. O. Smith TeamSeptember 30, 2026

Good buy

Would Recommend

I bought this a few weeks ago and it has been working great so far. Grateful to have it.

September 29, 2026
Verified Purchaser
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A.O. Smith - E6-40H45DV

Would Recommend

I replaced my old A.O.Smith Hot Water Heater with the same kind because I was so pleased with its performance. Had it for a long time and to my knowledge NEVER had a problem it.

September 29, 2026

From aosmith.com

Advanced tank guard protection; 6 yr. warranty

Would Recommend

A beautiful Sunday late afternoon, I was in the garage and noticed water on the floor. Tracing the water led me to the old water heater. I called our plumber who asked me to purchase a water heater, he'd come pick it up and install it. I chose the AO Smith Signature 100, 40 gallon electric with tank guard and a six year limmited warranty on parts with a one year limited warranty on labor. The price was right and the reputation of AO Smith sealed the deal.

September 29, 2026
Verified Purchaser
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Good price & easy installation!

Would Recommend

Wonderful price!! Easy installation... And an hour later I was running my dishwasher with HOT water!!! An hour after that, I took a nice long shower!!! (I didn't bother to check how long it took to recover in the beginning or between uses because I was doing other things.) Very happy with Lowes!

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easy install

I purchased last month and was very easy to install and running efficiently

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