SKU: 89551078585

A.O. Smith Signature 100 28-Gallon Lowboy 6-year Limited Warranty 4500-Watt Double Element Electric Water Heater

Sale price$197.55 Regular price$219.50
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Ships within 48 hours · Estimated delivery Aug 20 - Aug 25

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Description

A.O. Smith Signature 100 28-Gallon Lowboy 6-year Limited Warranty 4500-Watt Double Element Electric Water HeaterA. O. Smith's Signature 100 Series 28 Gallon Lowboy 6 Year Limited Warranty Electric Water Heater is designed to provide efficient and reliable hot water for households with 1 to 2 people when sized appropriately. Our unique low profile design with top connect water connections is ideally suited for installations with space constraints. A. O. Smith's 28 gallon model is designed to last. It features dual copper heating elements, a protective anode rod

A. O. Smith's Signature 100 Series 28-Gallon Lowboy 6-Year Limited Warranty Electric Water Heater is designed to provide efficient and reliable hot water for households with 1 to 2 people when sized appropriately. Our unique low profile design with top connect water connections is ideally suited for installations with space constraints. A. O. Smith's 28-gallon model is designed to last. It features dual copper heating elements, a protective anode rod and a ceramic fused tank shield designed to reduce corrosion and provide ultimate tank protection. It also features a self-cleaning dip tube designed to reduce sediment build-up and extend the overall life of the water heater. This added protection comes with a 6-year limited warranty to give you additional peace of mind. Want to save money on your energy bills? This model operates at a 0.89 Uniform Energy Factor (UEF) which can reduce your energy consumption compared to less efficient models.
  • Ideal hot water delivery for households with 1-2 people when sized appropriately

  • Two 4,500-watt copper heating elements provide a first hour delivery of 43 gallons

  • Save money and energy with this energy efficient model that operates at a 0.89 Uniform Energy Factor (UEF)

  • Low-profile 30-in H x 20-in diameter design with top water connections easier installation under counters, bathroom vanities or in cabinets

  • Premium heating elements, anode rod and fused ceramic tank shield provide superior tank protection and extend water heater life

  • Non-CFC polyurethane foam insulation and factory-installed heat trap nipples reduce heat loss for maximum efficiency and energy savings

  • Easy temperature control with adjustable thermostat can be set higher for dishwashers and laundry machines or lower as needed

  • Factory-installed temperature and pressure relief valve and tamper-proof drain valve ensures safe operation

  • 6-Year limited tank and parts, 1-Year limited labor warranty gives you peace of mind

Dimensions
Diameter (Inches)
20.0
Nominal Capacity (Gallons)
28.0
Family Size
2.0
Rated Storage Capacity
26-Gallon
Height (Inches)
30.0
Water Connection Size
3/4-in
Insulation Thickness (Inches)
1.0
Weight (lbs.)
90.0
Features
Foam Insulation
Yes
Series Name
Signature 100
For Use with Mobile Homes
No
Temperature and Pressure Relief Valve
Yes
GPH Recovery at 90 Degrees F (Gallons)
20.7
Type
Tank
Grade
Residential
Uniform Energy Factor
0.89
Hybrid Heat Pump Technology
No
Use Location
Indoor
Point of Use
No
Water Connection Location
Top
Power Source
Electric
Water Heater Style
Lowboy
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 89551078585

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4.5 ★★★★★
Based on 21 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
Birmingham, US
★★★★★ 4
A bit expensive
Size: Queen (Pack of 1)
Waited to give a review on this one because I needed several nights before I had any idea if it was as good as everyone says. I've had a real problem finding pillows lately. Either they're too soft to provide support and I wake up with a stiff neck or they're too sturdy and I wake up with a stiff neck. Contour pillows have worked best for me, but they fall under the category of too sturdy. I also toss and turn too much at night, which means I always end up in an awkward position with contour pillows. So I took a chance on an obscenely expensive pillow, and yes, that is the reason for one less star. I'd happily pay $70 for a pillow I thought was amazing and comfortable and perfect, but this one wasn't quite it. It IS comfortable. I have slept on it for a month now without it making my neck stiff, so it does actually provide a good balance between soft and sturdy. They make it easy to stuff the pillow to your preferred fluffiness and even provide extra stuffing if you need it, which adds to the degree of comfort. While the pillow does provide good neck support, I toss and turn a bit trying to find a comfortable position when I first try to sleep. The stuffing within the pillow moves around at night, most notably shifting to the side and the pillow is notably flatter now than when I first purchased it. You can fluff it out, similarly to a down pillow, but it doesn't seem to retain its shape on its own. In some ways, that's good because what it does instead is try to retain a shape that fits you. So yes, this is a really good pillow. One of the better ones you can buy. But it's really expensive for a pillow.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
A
Verified Purchase
Amber Teele
Port Orchard, US
★★★★★ 5
Best pillow I've ever had
Size: Queen (Pack of 1)
I don't really write reviews but holy buckets, Batman. This pillow is legit. Back, neck, and shoulder pain is nothing new for me; I've had scoliosis since I was a kid and hyperflexibility in my neck since birth leading to frequent muscle spasms that have caused me to miss work. Guys. This pillow. It is the most comfortable pillow I've ever had. Like, my neck doesn't hurt and I genuinely didn't remember what that felt like. It's simultaneously supportive and soft and it doesn't sink in. The instructions are super clear to understand and the pillow fluffs up no problem if it gets a little flat. This is a game changer for me and I so hope anyone who buys this has the same experience.
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Reviewed in the United States on June 6, 2026
D
Verified Purchase
Dana K.
Port Orchard, US
★★★★★ 5
I highly recommend this pillow, it’s great for someone with neck or back problems.
Size: Queen (Pack of 1), Size: Queen (Pack of 1)
I absolutely love this pillow! When it says it’s adjustable it definitely means that. When you first get it, it’s hard to believe that it’s going to be anything but put it in the dryer for a few minutes and it becomes so large. You will definitely have to remove some of the stuffing unless you like a really large fluffy pillow. The stuffing is high-quality and once it has been put into the dryer it becomes a fibrous type material that can be fluffed over and over and go back to the same size. It seems to be a high-quality cover on the outer portion and is thick and has a slight cooling affect. It has a separate cover on the inner portion covering the foam stuffing. I ordered this because I have neck problems and it has been super comfortable for me because I’m able to adjust it multiple times depending on my needs for the particular night when I lay down. Having the extra stuffing means that if the pillow does happen to go flat I can always add the extra that I took out when I received it. It did have a slight odor when it first came, but after putting it in the dryer, it went away immediately. I do think that’s only due to the plastic that it’s shipped in not anything with the pillow. I think this pillow is well worth it price and I would highly recommend it for anyone that is a side or back sleeper or has any type of neck problems.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2026
C
Verified Purchase
Caitlyn
Los Angeles, US
★★★★★ 5
Amazing!
Size: King (Pack of 1)
Such a great pillow I’m buying another one! You can add or subtract stuffing to your liking. It’s really nice quality, quilted and soft. Best pillow ever. Super comfy and great sleep. Pretty firm with all the stuffing. Perfect the way it came with stuffing on the side. My husband loves it and now I want one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
A
Verified Purchase
Alli
Massapequa, US
★★★★★ 5
Totally worth the money
Size: King (Pack of 1), Size: King (Pack of 1)
Right off the bat, the packaging is absolutely adorable and felt like I was buying a premium product. I love that this pillow is adjustable and as a side sleeper, I needed a pillow that is both firm and supportive of my neck. This hits all the boxes. We will be buying more of these for our bed!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026

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