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12 Gallon, 120V – Ariston Electric Water Heater – Compact Point of Use Tank for RV, Camper, Small Spaces, Plug-in Heating Solution for Under Sink, Versatile Electric Tank for Bathroom, Shower

  • Based on 264 reviews
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Availability: In Stock.
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Arrives Tuesday, Jul 14
Order within 20 hours and 56 minutes
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Style: 12 Gallon


Features

  • Compact and Versatile Design: The Ariston 12 Gallon Electric Mini Tank Water Heater features a compact design for installation in RVs, bathrooms, garages, and more, providing a flexible hot water option.
  • Swift Heating for Various Uses: This point-of-use electric water heater provides swift stored water for on use. It can function as a stand-alone or boost an existing water heater, ensuring swift water delivery in any setting, from homes to RVs.
  • Versatile Applications: Intact for a range of applications, including in-law suites, pool houses, offices, and stores. Its also advised for RVs and campers, making it a reliable option for providing heated water wherever its needed.
  • Versatile and Durability: This unit includes a screw-in heating element for direct heat transfer to water, ensuring versatility. It provides both performance and enduring reliability.
  • Why Choose Ariston: Ariston is a globally trusted brand known for innovative heating solutions and high-quality materials. By investing in Ariston products, you ensure exceptional performance, energy efficiency, and a commitment to sustainability in every aspect of your heating system.

Brand: Ariston


Capacity: 12 Gallons


Power Source: AC


Product Dimensions: 15.8"W x 22.5"H


Color: black,white


Power Source: AC


Voltage: 120 Volts


Flow Rate: 0.5 Gallons Per Minute


Maximum Temperature: 160 Degrees Fahrenheit


Efficiency: energy efficient


Mount Type: wall or floor mount


Is Electric: Yes


Capacity: 12 Gallons


Item Dimensions W x H: 15.8"W x 22.5"H


Item Depth: Approximately 12-15 inches


Material Type: Carbon Steel


Brand Name: Ariston


Model Number: ARI POU-12 120V 1500W


Manufacturer: Ariston


UPC: 817215028152


Manufacturer Part Number: ARI POU-12 120V 1500W


Included Components: 12 gallon water heater


Color: black,white


Style Name: 12 Gallon


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jul 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Great replacement water heater for my park model trailer.
Style: 12 Gallon
I replaced a 25 year old leaky 15 gallon electric water heater in my park model trailer with this 12 gallon unit. My issue was that it was in a very tight space in a bathroom cabinet. This heater was a perfect fit, and completely outperforms the old one. I have the temperature turned up all the way, and it provides plenty of hot water for a shower. I could not be more pleased with the performance, value, and ease of installation. Quick recovery, easy to set temperature, and it seems to be well built. ... show more
Reviewed in the United States on June 28, 2025 by C Sanders

  • Great Quality Heater
Style: 19 Gallon
Bought this Ariston 19-Gallon Electric Water Heater for heating water in my bathroom. It arrived on time and was easy to install. The unit is good quality, fits perfectly in a small space, and heats water quickly. After two weeks of use, it’s working just as expected, very satisfied so far and definitely great value for money! ... show more
Reviewed in the United States on May 21, 2025 by Jerrys Drug LLC

  • Good quality water heatet
Style: 12 Gallon
Quality water heater. Cost effective. Easy install. Works great.
Reviewed in the United States on December 28, 2025 by Marla H.

  • Good product, not good customer support.
Style: 19 Gallon
So far its worked perfectly, The Quality seems to be there, the only reason I did not give it 5 star is because I had a Question for customer support and i got put on hold forever and did not get a response.
Reviewed in the United States on November 22, 2025 by Dave

  • Might Save Lots of Money on My Hot Water Bill Might Save Lots of Money on My Hot Water Bill
Style: 19 Gallon
I purchased and Installed this 20 gallon electric hot water as they advertised for POU for Point of use hot water. Currently the price of Natural Gas just increased from 60 cents to 90 cents per CCF. But, my electric bill is price locked for 3/4 cent for the next 6 months and then increases to .80 cents. Currently Electricity cost less than natural gas. So I installed this and followed all the specs. Output from my NG Hot water heater to this POU HW Heater. The literature states that the heater needs about a 4 hour recovery time. I am actually watching a 2 hour recovery time. The water is set at 135 degrees and was delivering almost scalding hot water. For a shower you need about 15 gallons of hot water and the tank which is actually a boiler and stores 19 to 20 gallons of hot water. After a couple days I shut down the Natural Gas Hot Water Heater and am currently using only this Ariston POU 19 Electric Hot Water heater as my only source for Hot Water. Works Great for 2 people. Due to the current Natural Gas Price increase and the not as aggressive Electricity Price increases this item appears to be a great bargain for hot water. Takes about one and half hours to install using copper and copper fitting and sweating the pipes and I installed one shark bite ball valve. Could be installed faster using all Shark Bite. For the wire I installed a 20 amp circuit breaker into the Main and installed a 20 amp extension cord that is under 25 feet. I will probably change the circuit to hot wire. Makes a Great Hot Shower. ... show more
Reviewed in the United States on August 21, 2022 Reviewed in the United States on August 21, 2022 by Lion of Babylon

  • Great water heater! Happy I purchased this
Style: 12 Gallon
Easy installation with clear instructions. I was able to install without hiring a plumber, which in effect, paid for this. Connections were the right size, well labeled, with options for a side or top installation. Equipped with a bottom clean out valve. Used about a month with no leakage and it's had great water temperature and so far so good! ... show more
Reviewed in the United States on February 1, 2026 by Ash W.

  • Good
Style: 19 Gallon
It works
Reviewed in the United States on May 13, 2026 by belinda notgrass

  • It works and was easy to install.
Style: 12 Gallon
I do wish that there was a temperature control as usually the temperature is not hot enough that I think it should be after you have ran the hot water for a little while walked away and come back then the water is definitely hotter, but I still have a pot Water in for my dishes and you definitely don’t need to add cold water to your shower. Hot water works fine. Fit perfectly under the counter of my RV and has plenty of water for all my RV needs ... show more
Reviewed in the United States on October 30, 2024 by Willa Reynolds

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