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Signature 100 30-Gallon Tall 6-year Warranty 4500-Watt Double Element Electric Water Heater

Ratings & Reviews for A.O. Smith Signature 100 30-Gallon Tall 6-year Warranty 4500-Watt Double Element Electric Water Heater

4.1
3621
Review
 4.1 out of 5
3621 Reviews


78% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers praise the straightforward installation process with clear instructions and reliable hot water output that meets household demand. Most report achieving hot water within an hour and appreciate the accessible design. However, some experience premature failures of heating elements and thermostats within months or a few years. A few express frustration with warranty coordination and return processes. Despite these concerns, most customers find the unit delivers strong initial performance and value.

Customer review summary generated by AI, including incentivized reviews.
3622 Customer Reviews

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.

September 30, 2026
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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.

Pl...
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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.

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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.

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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!

September 28, 2026
Verified Purchaser
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easy install

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

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Heater

I bought this heater a few weeks ago and happy with it. It has 5 gallons more than my previous one and much easier to install and operate. All and all, I highly recommend it

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Dent When Picked Up

Would Not Recommend

Dent on the side and when not nephew questioned during pick up he was told it would not hurt the product and it was fine. When you pay that much money for a new water heater, you would prefer that it not be damaged. No effort was made to make it right by the store. A lot of money to pay and received damage products.

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Response from Published by the A. O. Smith Team

We are sorry to hear of your experience.

We recommend reaching out to Lowe's Customer Care at 1-800-445-6937 or Text 84109.

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

Would Not Recommend

Cheaply made water heater. Uses plastic for faucet drain rather than brass. Not a good idea at all

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Response from Published by the A. O. Smith Team

We are sorry to hear of your experience. We want to ensure the issue is resolved.

Please send your phone number to talktous@aosmith.co...
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Published by the A. O. Smith TeamOctober 2, 2026

Excellent Delivery Service

Would Recommend

Impressed with the communication on delivery time. Well done.

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Easy to install. Even a girl can do it!

Would Recommend
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Excellent

September 25, 2026
Verified Purchaser
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Water heater is fine.

Would Recommend

Lowe’s delivery system leaves a lot to be desired. My time to be delivered was moved a whole day from the original date, and then was also delayed twice that day. Almost 48 hours later than what it was supposed to be. Zero explanations. Much like every other big corporation, I guess once they get the money you are no longer the priority.

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Heater

Would Recommend

A great working heater and energy efficient

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Slim design

I am thrilled with the small footprint of this water heater.... only 18" in diameter, so fits in a small space.

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