Name: A.O. Smith Signature 100 30-Gallon Short 6-year Warranty 32000-BTU Natural Gas Water Heater
Brand: A.O. Smith
SKU: 1002550464
Price: 589 USD
Availability: InStock
Rating: 4.4 (1499 reviews)

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A. O. Smith's 30-gallon natural gas water heater is designed to provide efficient and reliable hot water for households with 1 to 2 people when sized appropriately. With an environmentally friendly 32,000 BTU Low NOx gas burner, this model delivers 55 gallons of hot water in the first hour. It features an electronic gas valve that provides precise temperature control for optimum hot water delivery without the need for an external power source. For your convenience, the gas valve also includes an LED status indicator for diagnostics reporting and a push button ignition to simplify the startup process. A. O. Smith's compact water heater is designed with your safety in mind. With a built-in safety system, this model reduces the risk of accidental flammable vapor ignitions. This model is built to last. It features Tank Guard® which is designed to provide ultimate tank protection and increase lifespan of the water heater. This added protection comes with a 6-year limited warranty to give you additional peace of mind. Call 1-877-GOLowes to get this water heater installed.

Delivers the ideal amount of hot water for households with 1 to 2 people when sized appropriately
Features an environmentally friendly 32,000 BTU low NOx gas burner that provides a first hour delivery of 55 gallons
Features easy temperature control with adjustable thermostat you can set higher or lower for optimum hot water delivery
Offers electronic controls with self-diagnostic feedback that monitors and reports on system operational status
Built-in safety system reduces the risk of accidental flammable vapor ignitions
Short, slim 50-1/4-in H x 20-in diameter profile enables easier installation in condensed spaces like under staircases and inside closets
Tank Guard® provides advanced tank protection that extends the life of your gas water heater
High-altitude certified from 0 ft to 10,100 ft
Provides peace of mind with a 6-year limited tank and parts guarantee and a 1-year limited labor warranty

General
Type	Tank	Power Source	Gas
Fuel Type	Natural gas	Use Location	Indoor
Grade	Residential	Series Name	Signature 100
Ignition Type	Piezo	Venting Type	Atmospheric
Vent Type	Type B double wall

Dimensions
Nominal Capacity (Gallons)	30	Weight (lbs.)	94
Rated Storage Capacity	29-Gallon	Width (Inches)	19.75
Vent Diameter(s)	3-in; 4-in	Family Size	2
Depth (Inches)	19.75	Water Connection Size	3/4-in
Diameter (Inches)	20	Insulation Thickness (Inches)	2
Height (Inches)	50.25

Features
Point of Use	No	GPH Recovery at 90 Degrees F (Gallons)	32
Emission Rating	Low NOx	High Altitude Model	Yes
Annual Fuel Utilization Efficiency % (Percentage)	0	Pilot Light Window	Yes
Uniform Energy Factor	0.60	Pilot Reset Button	Yes
BTU Rating	32000	Temperature and Pressure Relief Valve	Yes
Super High Efficiency	No	Water Connection Location	Top
Grid Capable	No	Water Heater Style	Short
Scale Prevention	No	Leak Detection	No
Foam Insulation	Yes

Compatibility
For Use with RVs	No	Works with Android	No
Works with Apple HomeKit	No	Wi-Fi Compatibility	No
For Use with Mobile Homes	No	Works with the Google Assistant	No
Works with SmartThings	No	Bluetooth Compatibility	No
Works with Amazon Alexa	No	Smart Compatible	No
Works with iOS	No

Warranty
Warranty	6-year limited

Certifications
CA Residents: Prop 65 Warning(s)	Prop 65 WARNING(S) -	AHRI Certified	Yes
ENERGY STAR Certified	No	Safety Listing	CSA safety listing

Miscellaneous
UNSPSC	40101800

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Review

4.4 out of 5

1499 Reviews

86% Recommend this product

Ratings may include incentivized customer reviews.

Read All Reviews

+ 83

What Customers Are Saying

The AO Smith water heater is generally well-received, with customers reporting it heats water efficiently and provides reliable hot water. The 12-year warranty is seen as a positive feature. However, some customers experienced issues with dents, pilot light or burner problems, and concerns about warranty coverage and repair costs. Overall, the water heater appears to be a quality product that meets the needs of most customers.

Customer review summary generated by AI, including incentivized reviews.

1499 Customer Reviews

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Would Recommend

NelsSeptember 27, 2026
From Signature 100 40-Gallon Short 6-year Warranty 40000-BTU Natural Gas Water Heater Verified Purchaser

Was this Review Helpful ?

Works great

Would Recommend

I was looking for a shorter 40 gallon so I could see the connections without a ladder. I did have to use different connection piping because it's shorter though. Works great and has a 9 year warranty. I bought this one because the Rheem was more likely to leak from the top.took 3 people to place on 2 foot pedestal, but took about 5 minutes to do it.

VegasJoshSeptember 25, 2026
From Signature 100 40-Gallons Short 9-year Warranty 40000-BTU Natural Gas Water Heater Verified Purchaser

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/5cde468b-5cd2-5b9d-938c-d5a64a6bc20b

Was this Review Helpful ?

So far, So good!

Would Recommend

Ordering online was efficient. Pick up at the store was made easy with help from management and other associates. Receipt was not emailed as agreed, I had to go back to the store and get it. Installation was quick and easy. Instructions and start up was straight forward with basic knowledge of how the system works. Efficiency, it is to early to judge fairly, water heater has not been installed for a full billing period.

Mountain ViewSeptember 25, 2026
From Signature 100 74-Gallon Short 6-year Warranty 75100-BTU Natural Gas Water Heater Verified Purchaser

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