A.O. Smith Signature 300 50-Gallons Tall 12-year Warranty 40000-BTU Natural Gas Water Heater
Item #816111 |
Model #G12-UFDT5040NV
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5,000+ available
Delivers the ideal amount of hot water for households with 5-6 people when sized appropriately
Automatic flue damper increases efficiency by automatically opening and closing to reduce heat loss in standby mode
Electronic gas valve provides precise temperature control for optimum hot water delivery
Features an environmentally friendly 40,000 BTU low NOx gas burner that delivers 83 gallons in the first hour
Tank Guard® provides advanced tank protection that extends the life of your gas water heater
Tall, slim 63.5-in H x 22-in diameter profile enables easier installation in narrow spaces
High-altitude certified from 0 ft to 7,700 ft
Provides peace of mind with a 12-year limited tank and parts guarantee and a 3-year limited labor warranty.
General | |||
|---|---|---|---|
Series Name | Signature 300 | Fuel Type | Natural gas |
Type | Tank | Ignition Type | Electric |
Power Source | Gas | Venting Type | Atmospheric |
Grade | Residential | Vent Type | Type B double wall |
Use Location | Indoor | ||
Dimensions | |||
|---|---|---|---|
Depth (Inches) | 22 | Rated Storage Capacity | 48-Gallon |
Diameter (Inches) | 22 | Vent Diameter(s) | 3-in |
Family Size | 6 | Water Connection Size | 3/4-in |
Height (Inches) | 63.5 | Weight (lbs.) | 164 |
Insulation Thickness (Inches) | 2 | Width (Inches) | 22 |
Nominal Capacity (Gallons) | 50 | ||
Features | |||
|---|---|---|---|
Annual Fuel Utilization Efficiency % (Percentage) | 0 | Pilot Reset Button | Yes |
BTU Rating | 40000 | Point of Use | No |
Emission Rating | Ultra Low NOx | Scale Prevention | No |
Foam Insulation | Yes | Super High Efficiency | No |
GPH Recovery at 90 Degrees F (Gallons) | 42 | Temperature and Pressure Relief Valve | Yes |
Grid Capable | No | Uniform Energy Factor | 0.70 |
High Altitude Model | Yes | Water Connection Location | Top |
Installation Location | Closet | Water Heater Style | Tall |
Pilot Light Window | Yes | ||
Compatibility | |||
|---|---|---|---|
Bluetooth Compatibility | No | Works with iOS | No |
Smart Compatible | No | Works with SmartThings | No |
Wi-Fi Compatibility | No | Works with the Google Assistant | No |
Works with Amazon Alexa | No | For Use with Mobile Homes | No |
Works with Android | No | For Use with RVs | No |
Works with Apple HomeKit | No | ||
Warranty | |||
|---|---|---|---|
Warranty | 12-year limited | ||
Certifications | |||
|---|---|---|---|
CA Residents: Prop 65 Warning(s) | Safety Listing | CSA safety listing | |
ENERGY STAR Certified | No | AHRI Certified | Yes |
Miscellaneous | |||
|---|---|---|---|
UNSPSC | 40101800 | ||
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Ratings may include incentivized customer reviews.
What Customers Are Saying
The AO Smith water heater has mixed reviews. Customers report that it has good features, heats water efficiently, and is easy to install. However, some users have experienced issues like strange noises, frequent shutdowns, and problems with the gas control valve. While the majority of reviews are positive, the reliability and durability of this model may be a concern for some buyers.
Customer review summary generated by AI, including incentivized reviews.WATER HEATHER 300
MY 14 YEARS WATER HEATHER IT STAR LEAKING.I BOUGHT THIS WATER HEATHER. THE INSTALLATION IT WAS SO EASY I PUT NEW HOSES AND GAS LINE. SO FAR IS WORKING VERY GOODKOPE IT LAST ANOTHER 14 YEARS ALSO I DO THE MAINTENANCE ON THE HEATHER
From aosmith.com
The best heater.
Great product. First time customer for AOSmith. Won’t be last for sure.
From aosmith.com
Great product
Recommend this product for energy efficiency and quick heating and long lasting
From aosmith.com
Doing great!! Heat is on!!!
Just bought this and it is working out great! Thank you for a great product!
From aosmith.com
Great Product
Very solid, well engineered water heater. Thank You
From aosmith.com
No rumbling thru the pipes and very quite.
The water heater works very well and the water pressure throughout the house has increased and has good water heater temperature.
Verified Purchaser
Great unit.
Got this two year ago im happy with my water heater.
From aosmith.com
Dependable hot water!
This is a replacement of an existing AOSmith water heater
From aosmith.com
Reliable
I worked for years as a builder. A.O. Smith was always the go to brand. This is probably the fourth one that I have installed in my own home in the last 35 years in three different homes. They have always worked well and installed without any problems
From aosmith.com
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