Search  for anything...
Ariston

8 Gallon Capacity, 120-Volt – Ariston Andris Mini Tank Electric Water Heater – Heating Solution for Under Sink, RV, and Compact Spaces, Smart Boost for Versatile Heating, Simple Installation

  • Based on 1,752 reviews
Condition: New
Checking for the best price...
$209.99 Why this price?
Save $490.00 was $699.99

Buy Now, Pay Later

As low as $35.00 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Aug 28
Order within 14 hours and 15 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Style: 8 Gallon


Features

  • Compact and Versatile Design: The Ariston Mini-Tank Electric Water Heater is ideal for supplying heated water to single sinks in small spaces like RVs and under sinks. Its compact design fits seamlessly in tight spaces for convenience.
  • Powerful Heating Solution: Equipped with a titanium glass-lined tank for durability and optimal heat retention, this water heater provides on-demand heated water without the need for large commercial tanks, making it efficient for home and RV use.
  • Versatile Installation Options: This product bundle can be installed as a stand-alone unit or as a booster to an existing hot water system, ensuring a consistent supply of heated water where its needed most. Considerable for sinks, garages, and remote areas.
  • Energy-Saving and Convenient: Designed for easy hardwiring and quick installation, this electric water heater minimizes energy usage while maximizing performance. Its a smart solution for reducing energy consumption without compromising water supply.
  • 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.

Description

The Ariston Andris 2.5 Gallon 120-Volt Mini-Tank Electric Water Heater provides a small amount of stored hot water that can be installed right at the point of use. You will save water by eliminating the wait for hot water to reach the faucet by tapping into the water line and placing your hot water source right under the sink. No need for costly recirculating lines or pumps. Installation is easy and only requires a standard 120-Volt outlet to power the heater. This mini tank is perfect for standalone applications, or as a booster in remote locations for your primary water heating system to get hot water faster. Lightweight and compact, this water heater can be installed in a variety of locations. The mini tank is perfect for smaller properties, including in-law suites, kitchenettes, pool houses and garages, and can even be used for commercial applications like stores, offices, and bathrooms. Created with versatility in mind, the mini tank can be wall mounted with the brackets provided or placed on the floor to fit your desired space. This highly efficient water heater boasts environmentally safe foam insulation. This compact yet powerful hot water heater supplies instant hot water to even the most remote locations: We have almost 100 years of experience in providing sustainable thermal comfort to people worldwide. Through our renewable and high-efficiency solutions, we fulfill our customers' different needs while supporting the energy transition at all stages. We are a global manufacturer committed to addressing a critical need: providing sustainable thermal comfort for people worldwide. We work to deliver high-quality thermal comfort solutions. Ariston Andris 2.5 Gallon 120-Volt Point of Use Mini-Tank Electric Water Heater Ariston Water Heaters are your answer to a convenient, compact, and reliable hot water source where space is limited. Ariston Andris 4 Gallon 120-Volt Point of Use Mini-Tank Electric Water Heater Fits in any space where instant hot water is needed. And with its modern design, it integrates seamlessly into your home or workspace. Ariston Andris 8 Gallon 120-Volt Point of Use Mini-Tank Electric Water Heater It’s the ideal solution for commercial uses or any area that needs a dedicated source of hot water whether it's in your home or office. Ariston 6 Gallons POU Electric Water Heater Easily adjust the thermostat for a consistent and comfortable hot water experience. Ariston 12 Gallons POU Electric Water Heater Ariston Water Heaters take the guesswork out of heating water. Its thermostat control makes adjusting water temperature a breeze. Ariston 19 Gallons POU Electric Water Heater

Brand: Ariston


Capacity: 8 gallons


Power Source: AC


Product Dimensions: 17.5"W x 17.5"H


Special Feature: TitanShield exclusive technology that fully protects inner surface against corrosion


Power Source: AC


Special Features: TitanShield exclusive technology that fully protects inner surface against corrosion


Wattage: 2000 watts


Voltage: 120 volts


Efficiency: Highly Efficient


Mount Type: Wall Mount


Capacity: 8 gallons


Item Dimensions W x H: 17.5"W x 17.5"H


Color: grey,black


Style Name: 8 Gallon


Brand Name: Ariston


Model Number: ANDRIS RS 8U 1.4KW


Unit Count: 8 Count


Manufacturer: Ariston


UPC: 763160007202


Included Components: 8 gallon water heater


Material Type: Glass


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Aug 28

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great Little water heater
Style: 2.5 Gallon
A great under the sink water heater. I’d buy it again in a minute!
Reviewed in the United States on July 17, 2026 by Yeoleretiree
    • This is a life changer and a profound water conservation appliance
Style: 2.5 Gallon
Review Image by chetnlisa
Review Image by chetnlisa
It's earth day and appropriately so I decided to weigh in on the reviews. I've had my Ariston 2.5 gallon water heater installed (I did this personally, big fan of DIY projects) for 4 mos. As an avid cook, I am constantly needing short bursts of hot water to rinse my hands, clean utensils, rinse wine glasses, etc. This is the solution. Never a better home improvement idea has been fulfilled that I can even compare to installing this water heater. Because this is a tank, it can provide water at a very low pressure/volume. The sort of low volume that would otherwise not trigger many tankless water heaters to start heating. More importantly, no more grief as you wait endlessly for the water to get hot. Most people aren't even aware that their dishwashers/washing machines are filling up with cold water (on the "HOT" water setting) because the water from the line is not hot yet and the machine will most likely be full by the time the water is hot. I have my tank connected to my incoming hot water line (from the tankless main unit outside my house) to my kitchen sink/dishwasher using a "T" adapter. I power both with a single outlet also with an adapter. The two can run simultaneously as I've discovered without tripping the breaker. This is truly a great product. It has performed flawlessly, it's compact and genuinely attractive. There's no noise while it's heating up the water and it maintains temperature really well. The other cool thing is that if I'm needing more than (2.5 gallons) what's in the tank, the refill water flowing into it (from my tankless main water heater) will be hot by then. Saves money and electricity, wear and tear, etc. Again, in my case, this unit serves as a flow through ('in line") source of hot water. Before purchasing this, I ran the sink until the water was adequately hot and discovered over two gallons of water went down the drain. In a kitchen, it's really common to require incremental and low volume hot water. Constantly waiting and wasting just to do a quick rinse of your hands is enough to justify adding this to your life. However, saving water and adding convenience is what sells it. Remember, this unit is not coming up to temperature gradually, it is storing water at a constant temperature. Whether you go this route or choose a mini point of use tankless unit, you get hot water instantaneously. It's a game changer. I've been so happy (and enlightened) with this that I've offered to install one for a relative who has the same water wasting set up. It's one way (as is this review to inspire people to get one of these) to pay forward wisdom that changes the planet for the better. Don't procrastinate. This will be one of the best decisions you'll make to add convenience to your otherwise crazy family life like mine. And you'll be patting yourself on the back wondering why you hadn't done this a long time ago. Best of luck!!! ... show more
Reviewed in the United States on April 22, 2021 by chetnlisa
    • Works as advertisted. Not anymore
Style: 8 Gallon
I picked this hot water tank to use in our new outdoor shower. We just wanted something easy to connect and install to heat the shower water for a rinse off, after using the pool or spa. The 8 gallon capacity is enough for 2 washing showers or 4 rinse offs. I'm happy with the purchase. Follow up, the heater continues to trip the reset mode and turns off. You need to remove the front panel each time to reset the unit. My Amazon return window closed. Ariston customer service no longer sends replacement thermostats. After multiple phone calls and emails they are supposedly sending me a refund. I won't buy this unit again. ... show more
Reviewed in the United States on March 17, 2026 by comsumer reporter
    • Worked in my application
Style: 4 Gallon
Worked in my application
Reviewed in the United States on July 15, 2026 by jay schell
    • Do not buy-2 different tanks did not work; installed and un-installed - support was extremely rude
Style: 2.5 Gallon
Review Image by Jim Beadle
Review Image by Jim Beadle
I have purchased many items from Amazon without issue but this has been the worse experience I have had. I purchased this water heater as we have a tankless water heater and wanted something to allow us to have hot water at kitchen faucet. I purchased this unit as it had good reviews, even though it was more expensive than an alternative unit. I received the unit and installed the unit and all the plumbing. The instructions are very clear that you need to have it full of water before you can turn on and operate the unit. The unit had many black marks on the unit despite being wrapped in stretch wrap and looked used but I assumed that was just from the manufacturing floor. After getting it all installed, I plugged it I discovered the unit did not work at all. I took the front end off as suggested in the manual and reset the high limit button and that did not help. The light did not come on and I still waited to see if the water would heat but it did not. I uninstalled the appliance, re-packed it for the return and ordered a replacement thinking I may have just recieved a bad unit which happens. I also used the "contact the manufacturer feature" within Amazon as well but never received a response. I received the replacement unit. This unit also had scuff marks on it but appeared to be in better shape. I installed the appliance completely, not wanting to damage the unit per the manual, and once again, was disappointed to find this unit also did not work. I have not installed and un-installed twice. At this point, I thought it would be important to contact the manufacturer per the instructions on the side of the unit. I was initially on hold for 30 minutes to get through to "customer service". At that point, the customer service person told me they would have to transfer me to "warranty". She said she saw there were three reps open so I would not be placed on hold. Then I was placed on hold. When I finally got through to this person, someone named Ricardo, I was asked for a ticket number which I do not have. I re-explained the situation. He then asked me to provide the serial number. I pulled back out the unit and found the serial number and provided it to him. Once I provided the serial number he said something like oh see this happens and became very agitated with me. He then "explained" to me that I was not their customer but I was Amazon's customer. He was very rude and interrupted me several times. All I wanted was a working water heater and do not think I am being unreasonable after having all the work of this issue being placed on the consumer. After 57 minutes of a phone call, as directed by them on the side of their unit, I was given a website to file a warranty claim. Do not waste your time and energy purchasing this device, trying to install and having to un-install. They obviously have some quality control issues on their end and do not support their products or stand by them at all. They are simply re-shipping out bad units they get back and blaming Amazon. Maybe you'll get lucky and get a working unit but it's a lot of installation work to go through for a gamble. I would expect if you buy a new unit, and pay the new unit price, you should expect to get a new working unit that the company stands behind. I've never been told by a customer service department that I am not their customer. This was a complete waste of my time and effort. ... show more
Reviewed in the United States on January 19, 2023 by Jim Beadle
    • Huge Help for 1 Operator Hair Salon
Style: 4 Gallon
Review Image by Taliah Mason
My salon is located in a traditional office building. Our floor is shared with 3 (multi stall) restrooms and a few other independently owned businesses. Where my suite is located I was not getting enough hot water to provide my clients with a great shampoo experience. My contractor was able to connect to the existing plumbing and hang the heater out of the way. The heater has been in use for almost 3 months and we had to reinforce it to the wall with heavier screws because when the thumps the wall a little each time it is turned off and on. Knowing what I know now, this would not have been a deal breaker. It works really good, I get the hot water I needed, the noise is not startling and the price was great! FYI My contractor charged $300 for the install and it took him a few hours along with some other plumbing concerns I had. I’m sharing a pic of the niche we were able to hang it in. ... show more
Reviewed in the United States on April 21, 2022 by Taliah Mason
    • Great product, easy to install, arrived quickly, and earlier than expected.
Style: 4 Gallon
This is a great little heater. My camper came with one installed when I purchased it 8 years ago. No telling when that one was bought. Mine stopped working, so I got a new one. It came with clear directions; easy to remove the old one and hook up this one to the already existing PEX piping, Watched several YouTube videos about this little heater before in stalling it myself. (female 73 yrs,) If one doesn't have the PEX piping, there are videos for that also. Mine lived a nice long productive life considering I have well water and did not know to flush it out once a year. It gives me instant hot steaming water at the sink, hot enough to make tea and instant coffee. I love it. I had the option to clean or replace the corroded heating rods, but considering the low price I simply replaced the entire heater. ... show more
Reviewed in the United States on February 28, 2025 by Maxine
    • Works Fantastic!
Style: 8 Gallon
I needed a water heater or my ADU and did a bunch of research about the types, sizes etc. I came across this product ans was very hesitant since it was only 8 gallon and I wasn't sure if this would sure if it would be enough for the sink and shower. I decided to try it since it was literally my only option. The product works great, I get hot water instantly and since it was installed next to the sink and shower, there is no time delay for water to get from the tank to the sink or shower. On average, it starts running out of hot water abut 7-8 minutes into a shower but that is a long shower and this way, I am forced to save water. If I use the sink, I may need to wait about 10 minutes for the tank to fill up and heat up again but I have had it a little over a year now and I love it! ... show more
Reviewed in the United States on September 9, 2024 by S P

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...