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Signature 100 38-Gallons Lowboy 6-year Warranty 4500-Watt Double Element Electric Water Heater with Insulation Blanket

Ratings & Reviews for A.O. Smith Signature 100 38-Gallons Lowboy 6-year Warranty 4500-Watt Double Element Electric Water Heater with Insulation Blanket

4.3
93
Review
 4.3 out of 5
93 Reviews


81% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise the compact, short profile for fitting tight spaces like crawl spaces and under counters, with side connections enabling easier installation in confined areas. Most report quick, straightforward installation in under an hour and consistent hot water output for daily household needs. Many highlight strong value compared to alternatives and note pre-cut insulation improved efficiency. A small number experienced early defects including leaking valves and thermostat issues, though most users find the combination of space-saving design, ease of setup, and reliable performance highly satisfactory.

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

Heating element failure and leakage in <2 years.

Would Not Recommend

Purchased in 2024 to maintain a hot water "loop" in my home's "on-demand" system. Began leaking past the terminal screw, shorting/destroying the Intermatic timer. Upon removal of the lower element, it had deformed and split open lengthwise. My plumber had never seen anything like it - Beware!

September 7, 2026
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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 TeamSeptember 8, 2026

Perfect

Would Recommend

Great product. Great fit for small areas. The contractors had it easy installing the tank.

December 8, 2025

From aosmith.com

Shop Lowe's

Would Recommend

The product is fine. The Store Manager, in Canandaigua, is amazing !! He solved, what appeared to be, an unsolvable problem. He arranged a direct shipment to the job site. He ordered the water heater on Friday and it was delivered on Monday. Tremendous service.

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Online is the way to shop in you don't need it imm

Would Recommend

Was exactly what I ordered. Arrived at the store 5 days earlier than expected. Pickup was a breezes

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Works as intended

Would Recommend

Very nice water heater, the Last AO smith heater lasted 20 years

June 26, 2025

From aosmith.com

New hot water heater

Would Recommend

Have only had it for 24 hrs. So far have been pleased, but really haven't had it long enough to know.

March 30, 2025

From aosmith.com

Leaked after 15 months

Would Not Recommend

Seemed like an ideal replacement for our undercounter water heater. Side connections made installation easier than the previous model's top connections in tight spaces. Worked great until one day we looked in to find water in the pan and the insulation soaked. The pan saved us from damaging the downstairs neighbor's condo. Now I have for try for a warranty replace and do a lot of work to remove and replace it.

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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.c...
Read More

Published by the A. O. Smith TeamMarch 10, 2025

Very bad hot water heater

Would Not Recommend

I had a brand new AO Smith electric hot water heater installed that has a dangerous defect from the factory and needs replacement. For the warranty coverage I need to have it uninstalled and return to Lowes to swap for replacement. They have no tech in the area to do the work so I need to get my own plumber and they will reimburse $150. So the plumber charges $200 to start a service call and $70 an hour after the first hour. What a burn, their unit is defective and it will cost me what? How m...

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Response from Published by the A. O. Smith Team

We're sorry to hear about the trouble you had.

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

Published by the A. O. Smith TeamJanuary 10, 2025

Short tank water heater

Would Recommend

Excellent quality needed a short tank but enough gallons 38 gallons worked well

November 10, 2024

From aosmith.com

Good product and working great

Would Recommend

It's wasn't too bad install and working great and fit well.

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Short stuff

Would Recommend

Love this hot water heater it was short enough to fit under my house. And I’m loving the hot water.

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easy to install

Would Recommend

works great

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