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

Ships within 48 hours · Estimated delivery Jul 3 - Jul 8

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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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4.0 ★★★★★
Based on 2352 reviews
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Product Reviews
B
Verified Purchase
Brenda P
Birmingham, US
★★★★★ 5
Really helpful for dry mouth.
Scent Name: Berry, Size: 100 Count
These really work. I wear a CPAP and my mouth was so dry I was waking up with my tongue stuck to the roof of my mouth. They stick well so no worry of swallowing it during the night. I like the berry flavor.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
E
Verified Purchase
Em N
Alexandria, US
★★★★★ 4
help with dry mouth
Scent Name: Berry, Size: 100 Count
I'VE BEEN USING THESE AT NIGHT FOR SEVERAL YEARS AND THEY LAST MOST OF THE NIGHT. I LIKE THE MILD FLAVOR TOO.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
K
Verified Purchase
Kenneth
Dallas, US
★★★★★ 5
A Miracle for dry mouth!!
Scent Name: Berry, Size: 100 Count
I don't know what I would do without this product. I suffer from severe dry mouth from my medications and xylmelts have been a miracle for me. I buy them regularly and cannot live without them I sleep comfortably with them in my mouth and they help beyond belief.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
B
Verified Purchase
Beverly White
Grantham, US
★★★★★ 5
Dry mouth remedy
I have been using these for a couple of years and they work great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
J
Verified Purchase
Jeff D.
Louisville, US
★★★★★ 5
Slim profile, stays anchored all night (Berry flavor is great!)
Scent Name: Berry, Size: 100 Count, Scent Name: Berry, Size: 100 Count
I rely on these nightly to combat dry mouth, and they deliver exactly what is promised. The adhesion mechanism is impressive—once placed against the gum, the disc stays securely anchored for a full 6–8 hours without shifting, allowing me to sleep without interruption. ​The profile is ideal; the discs are incredibly slim and unobtrusive, so you don't feel like you have a bulky object in your mouth while trying to fall asleep. Despite being so compact, they pack enough moisture to last until morning. The Berry flavor is mild and soothing, making it a perfect bedside companion. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026

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