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Signature 100 50-Gallon Short 6-year Warranty 4500-Watt Double Element Electric Water Heater

Ratings & Reviews for A.O. Smith Signature 100 50-Gallon Short 6-year Warranty 4500-Watt Double Element Electric Water Heater

4.5
354
Review
 4.5 out of 5
354 Reviews


90% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise this water heater for reliable, quick heating and consistent hot water delivery. Most highlight fast recovery times and immediate results after installation. Many appreciate the straightforward setup requiring no specialized tools or professional help, noting it fits standard plumbing configurations. Reviewers express strong confidence in the product's build quality and durability, with several replacing decades-old units and choosing this model based on past positive experiences. A few report minor issues like plastic drain valves or cosmetic damage, but these are isolated. Overall, customers consider this a trusted, dependable choice for reliable hot water.

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

Very efficient

Would Recommend

I have always had good success with the A O water heaters.

October 1, 2026
Verified Purchaser
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great water heater

Would Recommend

Works great! Had no issues immediately upon installation and it's been 2 months. Price and delivery were both great, highly recommend.

September 30, 2026
Verified Purchaser
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Easy and straight forward installation.

Would Recommend

I bought this water heater and installed it myself with ease. Happy with the performance and price.

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Price

Would Recommend

Very easy install good price & energy efficient

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Works great!!

Works great and was an easy installation.

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Great price

I bought this a month ago and it was easy to install.

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Good water heater

Would Recommend

I got this a few weeks ago install was easy and with in an hour had hot water. We can run the washer and still have enough hot water to take a shower without a drop in temperature. Thos is well with the price.

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Water Heater

Would Recommend

Water Heater installation was quick and easy

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This was not a pickup. Installation INcomplete

Would Not Recommend

In the past I bought a clothes washer, a dryer, a dishwasher and a refrigerator over the years from Lowes. But in December of 2005 I bought a water heater. The guy at Lowes that helped me pick it out said he could install it. But the next day I changed my purchase to Lowes installation. The water heater installer seemed competent as the new water heater was installed neatly. BUT…. The installer left right after I showed him the kitchen faucet had no hot water. He made it sound like it just ne...

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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 TeamAugust 26, 2026

No returns unless leaking water

This water heater was purchased brand new on a Sunday, professionally installed, and did not work from day one. This was in a rental property, and the guests had already been without hot water for nearly a week. We could not reasonably wait to call for an RA number, schedule another professional, pay them again to replace parts, and then hope that fixed a brand-new water heater. So, the very next day, we purchased the exact same water heater, had it professionally installed, and it worked perf...

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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 TeamAugust 21, 2026

Good value

Would Recommend

Only one item on the unit I would change, the drain valve is plastic, need to be steel or brass. The first one I purchased was broken, had to exchange it. Installation went well. Installed an expansion tank at the same time. All install a pressure reduction valve to the main incoming line before installation. Set both main line and expansion tank to 55psi.

August 11, 2026

From aosmith.com

Works great

Would Recommend

We have had this a few months now and it works well.

July 29, 2026

From aosmith.com

great basic heater

Would Recommend

this is my second one and it lasted 6 years. we are on a well with acidic water so 6 years is pretty good for this area.

July 13, 2026

From aosmith.com

Just Installed... HOW Can I Rate the Product?

Would Recommend

Pick-Up Was Timely and Painless. Self Installation was without any problems. Just filling the tank before turning on the Water Heater... I'll let you know how it goes from here.

June 25, 2026
Verified Purchaser
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Happy with water heater, good product

Would Recommend

Have had it for 2 months never ran out of hot water. Set it at 125*

June 16, 2026

From aosmith.com

Great product

Would Recommend

I am so happy that I bought it. Hope works as good as previous one.

June 13, 2026

From aosmith.com