A.O. Smith Signature 40-Gallon Tall 6-year Limited 40000-BTU Natural Gas/Liquid Propane Water Heater
Item #816121 |
Model #G6-MH4040NV
Ideal hot water delivery for households with 3-4 people when sized appropriately
Environmentally friendly 40,000 BTU Low NOx gas burner delivers 69 gallons in the first hour
Electronic gas valve provides precise temperature control for optimum hot water delivery
This item is no longer sold on Lowes.com
Ideal hot water delivery for households with 3-4 people when sized appropriately
Environmentally friendly 40,000 BTU Low NOx gas burner delivers 69 gallons in the first hour
Electronic gas valve provides precise temperature control for optimum hot water delivery
Self-diagnostic electronic gas control incorporates an LED status indicator that monitors and reports on system operational status
Built-in safety system reduces the risk of accidental flammable vapor ignitions
Short 62-in H x 19.75-in diameter design is ideal for condensed spaces like under staircases and closet installations
Protective anode rod and fused ceramic tank shield provide superior tank protection and extend water heater life
High-altitude certified from 0 ft to 10,100 ft
6-year limited residential warranty gives you peace of mind
General | |||
|---|---|---|---|
Series Name | Signature | ||
Dimensions | |||
|---|---|---|---|
Diameter (Inches) | 19.75 | Rated Storage Capacity | 38-Gallon |
Family Size | 4 | Vent Diameter(s) | 3-in |
Height (Inches) | 62 | Water Connection Size | 3/4-in |
Insulation Thickness (Inches) | 2 | Weight (lbs.) | 132 |
Nominal Capacity (Gallons) | 40 | ||
Features | |||
|---|---|---|---|
BTU Rating | 40000 | Point of Use | No |
Emission Rating | Low NOx | Temperature and Pressure Relief Valve | Yes |
Foam Insulation | Yes | Uniform Energy Factor | 0.56 |
GPH Recovery at 90 Degrees F (Gallons) | 41 | Use Location | Indoor |
High Altitude Model | Yes | Vent Type | Type B double wall |
Ignition Type | Piezo | Venting Type | Atmospheric |
Installation Location | Closet | Water Connection Location | Top |
Pilot Light Window | Yes | Water Heater Style | Tall |
Pilot Reset Button | Yes | ||
Compatibility | |||
|---|---|---|---|
Bluetooth Compatibility | No | Wi-Fi Compatibility | No |
Warranty | |||
|---|---|---|---|
Warranty | 6-year limited | ||
Certifications | |||
|---|---|---|---|
CA Residents: Prop 65 Warning(s) | Safety Listing | CSA safety listing | |
ENERGY STAR Certified | No | ||
Miscellaneous | |||
|---|---|---|---|
UNSPSC | 40101800 | ||
Ratings may include incentivized customer reviews.
What Customers Are Saying
The gas water heater received positive feedback for its easy installation, safety features, quick heating, and efficient performance. Customers were impressed by the abundant hot water supply and the product's sleek design. Overall, users were highly satisfied with the quality and functionality of the gas water heater.
Customer review summary generated by AI, including incentivized reviews.AOSmith water heater
I just installed my AOS water heater. I am a licensed ac technician so I suggest you get a professional to install especially if you’re dealing with gas. So for all is good we are in let’s see mode as to how long it last.
From aosmith.com
Recommended to replace a 25+ old unit.
Recommended by plumber, said quality product. AOSmith has been around a long time.
From aosmith.com
Install
Good product for the price, I like the the control panel better that last unit however that was a GE and it lasted 16yr
From aosmith.com
Great features
Happy with my purchase I made. It was a great choice
From aosmith.com
Love the auto ignition
I just had it put in today..Seems to be working great
From aosmith.com
PERKS FOR RETIREES
I like having hot water and this one never fails us.
From aosmith.com
Propane install
Easy to install and maintain and easy to install and maintain
From aosmith.com
I bought this a month ago and have been happy.
Have had G6 gas water heater for a month, Great!!!
From aosmith.com
Works good with no issues so far!
Reasonable price. I used it for almost a month and it works great!
From aosmith.com
A.O. Smith Gas Water Heater
The owners' manual instructions made for an easy installation -especially the conversion from NG to LPG. The emphasis on safety was appreciated since I had a slight gas odor upon completion. Using soap bubble mix, the tiny leak was located at the junction of the pilot tube and the control panel. My error -I had mis-aligned the ferule nut. But after loosening, adding a few strands of yellow gas sealing tape, and retightening, it sealed perfectly. PTL! The gas heater is so much better than the old...
From aosmith.com
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