A.O. Smith Signature Series 240-Volt 24-KW 2.4-GPM Tankless Electric Water Heater
Item #1055567 |
Model #R4LR-240E
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5,000+ available
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Delivers the ideal amount of continuous hot water for 1 shower and 3 sinks when sized appropriately (0.5 GPM faucets and 2.5 GPM showerhead)
Frees up valuable storage space with compact design
Offers easy wall mount installation that uses standard 3/4-in NPT water connections and doesn't require venting
Has no moving parts for simple maintenance and uses standard heating elements for easy replacement
Reduces harmful mineral deposits and extends product life with scale reduction technology and heat element power sharing
Dry-fire protection prevents premature element failure for worry-free installation
Enables simple temperature adjustment from 90 to 140 degree F via an intuitive digital interface
Provides peace of mind with a 5-year limited chamber guarantee and a 1-year limited parts and labor warranty
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General | |||
|---|---|---|---|
Series Name | Signature Series | Use Location | Indoor |
Type | Tankless | Display Type | Digital |
Power Source | Electric | Installation Type | Wall mount |
Grade | Residential | ||
Dimensions | |||
|---|---|---|---|
Depth (Inches) | 6.13 | Water Connection Size | 3/4-in |
Family Size | 5 | Weight (lbs.) | 20 |
Height (Inches) | 18.13 | Width (Inches) | 17 |
Features | |||
|---|---|---|---|
Annual Fuel Utilization Efficiency % (Percentage) | 0 | Scale Prevention | Yes |
Grid Capable | No | Super High Efficiency | Yes |
Hybrid Heat Pump Technology | No | Uniform Energy Factor | 0.92 |
Installation Location | Wall | Voltage (Volts) | 240 |
Leak Detection | No | Water Heater Style | Short |
Maximum Gallons per Minute | 2.4 | Wattage (Watts) | 24000 |
Point of Use | No | ||
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 | 5-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
The provided tankless water heater has received mostly negative feedback. Customers have reported frequent malfunctions, including error codes, leaks, and inconsistent hot water supply. Many have had to replace the unit multiple times due to these issues. While a few positive reviews mention the unit working well initially, the general consensus is that this is an unreliable product that requires significant electrical upgrades during installation.
Customer review summary generated by AI, including incentivized reviews.Instant heat
I thought my plumber could install the new electric cable etc but I need an electrician so it takes more time. My waterheater was just replaced instead of the instant heat....which is still a dream if mine. Nothing was wrong. I need to plan for it rather than doing it when your tank has busted.
should have read the reviews.
my husband installed and worked great for a couple months. Then it started to take forever to start to get hot, and now we maybe get lukewarm showers. Getting an err 21 reading. have followed recommendations found online to no avail. One calling to push a red button to reset, but we were unable to find a red button.
Junk
If you think of buying thankless dont. Our family used for 4 months and it stopped working. Went back to tank water heater and am happy. Don't waste time on them
We are sorry to hear of your experience. We want to ensure the issue is resolved.
Please send your phone number to talktous@aosmith.co...
Works
Hot water is hot good pressure
From Signature Series 240-Volt 18-KW 3.5-GPM Tankless Electric Water Heater Verified Purchaser
Dual element req. 2 40 amp brakes 2x240v 8/2 romex
Good supply of hot water.
From Signature Series 240-Volt 18-KW 3.5-GPM Tankless Electric Water Heater Verified Purchaser
Read instructions carefully
Easy to install
From Signature Series 240-Volt 14-KW 2.7-GPM Tankless Electric Water Heater Verified Purchaser
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We are sorry to hear of your experience. We want to ensure the issue is resolved.
Please send your phone number to talktous@aosmith.co...