A.O. Smith Signature 100 40-Gallon Short 6-year Warranty 4500-Watt Double Element Electric Water Heater
Item #2483228 |
Model #E6-40R45D TTP
Check Fee in Cart.
Delivers the ideal amount of hot water for households with 2 to 3 people when sized appropriately
Features two 4,500-watt copper heating elements that provide a first hour delivery of 55 gallons
Operates at a 0.92 Uniform Energy Factor for maximum energy-efficiency and cost savings
Has short 49.75-in H x 20.5-in diameter design ideal for condensed spaces like under a staircase or a closet installation
Provides superior tank protection and extends water heater life with premium heating elements, anode rod and fused ceramic tank shield
Reduces heat loss with non-CFC polyurethane foam insulation and factory-installed heat trap nipples for maximum efficiency and energy savings
Features easy temperature control with adjustable thermostat you can set higher or lower for dishwashers and laundry machines
Comes with temperature and pressure relief valve for top installation
Provides peace of mind with a 6-year limited tank and parts guarantee and a 1-year limited labor warranty
General | |||
|---|---|---|---|
Series Name | Signature 100 | Grade | Residential |
Type | Tank | Use Location | Indoor |
Power Source | Electric | ||
Dimensions | |||
|---|---|---|---|
Depth (Inches) | 20.5 | Nominal Capacity (Gallons) | 40 |
Diameter (Inches) | 20.5 | Rated Storage Capacity | 37-Gallon |
Family Size | 3 | Water Connection Size | 3/4-in |
Height (Inches) | 49.75 | Weight (lbs.) | 98 |
Insulation Thickness (Inches) | 2.25 | Width (Inches) | 20.5 |
Features | |||
|---|---|---|---|
Annual Fuel Utilization Efficiency % (Percentage) | 0 | Super High Efficiency | No |
Foam Insulation | Yes | Temperature and Pressure Relief Valve | Yes |
GPH Recovery at 90 Degrees F (Gallons) | 20.7 | Uniform Energy Factor | 0.92 |
Grid Capable | No | Voltage (Volts) | 240 |
Hybrid Heat Pump Technology | No | Water Connection Location | Top |
Point of Use | No | Water Heater Style | Short |
Scale Prevention | No | Wattage (Watts) | 4500 |
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 | Yes |
Works with Android | No | For Use with RVs | No |
Works with Apple HomeKit | No | ||
Warranty | |||
|---|---|---|---|
Warranty | 6-year limited | ||
Certifications | |||
|---|---|---|---|
CA Residents: Prop 65 Warning(s) | Safety Listing | UL 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
Customers overwhelmingly praise this water heater for reliable performance and quick hot water delivery, often available within minutes or almost instantly. Installation is frequently highlighted as straightforward and easy to follow, even for DIYers, with SharkBite fittings and clear instructions making setup simple. Reviewers consistently describe the unit as well-built with modern aesthetics and a top-mounted T&P valve that improves plumbing convenience. Many customers express strong confidence based on long-term durability and note excellent value. A small number report isolated issues like temperature resets or wiring concerns, but these represent a tiny fraction of feedback. Overall, most customers consider this an excellent, reliable choice.
Customer review summary generated by AI, including incentivized reviews.Instructions
Easy install vague instructions
From Signature 100 50-Gallon Short 6-year Warranty 4500-Watt Double Element Electric Water Heater Verified Purchaser
Just go to the store you can find it
Works good
Verified Purchaser
Replaced one just like it that was 23 years old
We replaced this AO Smith hot water heater with an AO Smith that was 23 years old. That said, it sems like a brand to be trusted. We hope this new one lasts as long.
From Signature 100 50-Gallon Short 6-year Warranty 4500-Watt Double Element Electric Water Heater Verified Purchaser
Water heater
My,plumer,install ,this unit,berry happy,in my house, thanks.
From aosmith.com
Check and double check.
Defective product first of all. Secondly the product wasnt what we ordered.
Verified Purchaser
Excellent durability
This is the exact model that served this home faithfully for many years.
From aosmith.com
easy install
My local plumber did the install, and the whole process was easy and not time consuming
From aosmith.com
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