Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

Signature 100 48-Gallons Lowboy 6-year Warranty 4500-Watt Double Element Electric Water Heater with Insulation Blanket

Ratings & Reviews for A.O. Smith Signature 100 48-Gallons Lowboy 6-year Warranty 4500-Watt Double Element Electric Water Heater with Insulation Blanket

4.4
1057
Review
 4.4 out of 5
1059 Reviews


88% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise this water heater for straightforward installation, rapid hot water delivery within hours, and reliable daily performance. Many highlight the compact lowboy design as essential for tight spaces like crawl spaces and small basements. Reviewers frequently reference previous units lasting 20+ years, reinforcing brand trust and durability expectations. The 6-year warranty adds confidence in longevity. A small portion report receiving units with visible damage or experiencing early heating element failure, and some note unresponsive support. Overall, most customers consider it a dependable, space-efficient investment.

Customer review summary generated by AI, including incentivized reviews.
1060 Customer Reviews

Simple install works like it should.

Would Recommend

This water heater was easy to install, turned on the breaker and 2 hrs later plenty of hot water. Simple.

Was this Review Helpful ?

Check the product before leaving the store.

Would Not Recommend

We’re very excited and in a hurry to get a new water heater the same day ours broke down. It was urgent to replace it because of the intense cold. Since there were no deliveries we even rented a truck, but it arrived with a broken heating element, it was completely rusted. The people we hired to do the replacement had to come back a total of three times before we were finally able to use the shower on the third day. Who will reimburse us for all the money spent on trips back and forth to Lowe’s...

Was this Review Helpful ?
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...
Read More

Published by the A. O. Smith TeamJanuary 13, 2026

AMAZING PRICE

Would Recommend

Amazing product and an even more amazing price

Was this Review Helpful ?

Nice Package with Insulation and Easy Install

Would Recommend

It is perfect for our condo and comes with insulated cover. This is the 3rd one we've owned as we try to replace it every 6-7 years as in Ocean environment they can corrode

Was this Review Helpful ?

has plastic drain valve .

Would Recommend

right height for under counter .

Was this Review Helpful ?

Missing part , safety pressure release valve

Would Not Recommend

Missing part

December 29, 2025
Verified Purchaser
Was this Review Helpful ?
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...
Read More

Published by the A. O. Smith TeamDecember 30, 2025

Great size for small spaces, check for damage

We bought the tank ourselves to save time and money. The box had not been opened and there was no signs of damage on the box. Upon opening the box we discovered the top, back edge was crushed in. The box was in great shape, so it had to have happened in the factory. They packed it anyway! Our Plumbers were on a tight schedule. They assured us it would not affect the functioning, so we let them install it. Buyer beware, open the box before leaving the store.

Was this Review Helpful ?
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.

Read More

Published by the A. O. Smith TeamDecember 29, 2025

Easy to install

I love that it has a water temperature setting and it can pretty much fit anywhere

December 15, 2025

From aosmith.com

Easy to install

Works Great. haven't had any issues. easy to install

December 15, 2025

From aosmith.com

A Lesson in Patience

Would Not Recommend

First one I brought home from the store was damaged at the factory. Box was perfect but unit was crushed, probably by a forklift. The guys just boxed it up and sent it out. Lowes got me a new one after lots of work to get it moved with help of $100 an hour handyman. Installed the new unit with help of $100 an hour local handyman. but it wouldn't heat. Called the Lowes but they wouldnt take it back because it was more than 48 hours(this was on a weekend) Could not afford to keep the $100 an hour ...

Was this Review Helpful ?
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...
Read More

Published by the A. O. Smith TeamDecember 15, 2025

Very good quality heater

Would Recommend

I was a builder for 32 years and now retired. I have always preferred AO Smith water heaters for my construction. Glad the quality is still there.

December 12, 2025

From aosmith.com

nothing so far

Would Recommend

nothing so far

Was this Review Helpful ?

Great size for 4 people

Would Recommend

Heats up quickly with plenty of water for 4 to 5 people

December 5, 2025

From aosmith.com