Nessxa 8 Gallon Electric Mini Tank Water Heater, 110V 1500W Point of Use On Demand Under Sink Instant Hot Water Heater for Home Kichen Bathroom
Condition: Used - Like New
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This item is eligible for return within 30 days of receipt
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.
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Availability:
Only 1 left in stock, order soon!
Arrives
Friday, Jul 31
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Style: 8 Gallons
Features
- 24H INSTANT HOT WATER - Our mini tank water heater delivers hot water instantly at your sink. With a 8 gallon tank, it provides instant hot water on demand, reducing wait times and water waste. The high-density polyvinyl chloride integral foaming process can uniformly heat the entire internal storage tank, improving durability and performance.
Description
8gallon water heater
Brand: Nessxa
Capacity: 8 gallons
Power Source: Electric
Product Dimensions: 26.6"W x 11.8"H
Special Feature: Energy Efficient, Smart Control
Power Source: Electric
Special Features: Energy Efficient, Smart Control
Wattage: 1500 watts
Voltage: 110 Volts (AC)
Maximum Temperature: 176 Degrees Fahrenheit
Mount Type: wall, floor
Is Electric: Yes
Smart Home Compatibility: Not Smart Home Compatible
Capacity: 8 gallons
Item Dimensions W x H: 26.6"W x 11.8"H
Item Weight: 31.8 Pounds
Color: White
Style Name: 8 Gallons
Brand Name: Nessxa
Model Number: YYJ24039-4
Manufacturer: Nessxa
UPC: 631060186870
Manufacturer Part Number: YYJ24039-4N
Included Components: colloidal particle*1, drain hose*1;hook screws*2, instruction book*1, sealing washers*2, storage electric water heater
Unit Count: 1.0 Count
Item Type Name: 8gallon water heater
Material Type: Acrylonitrile Butadiene Styrene
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Jul 31
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: 1.6Gallons
I’ve been genuinely impressed with how this electric water heater performs. From the moment I installed it under my sink, I noticed hot water much faster than I expected. It’s compact yet powerful, and it fits perfectly in small spaces like my RV kitchen without eating up room. The temperature gets nice and hot quickly, and I love not having to wait for warm water anymore this little unit delivers exactly what it promises. And for a fair price I’d say. What stands out most is how easy it was to set up. Everything I needed was included, and I had it up and running in no time without any professional help. The build feels solid and well made, and the controls are intuitive. It’s clear that this isn’t a flimsy gadget but something designed to work reliably day after day. Even with frequent use, it hasn’t missed a beat and continues to heat water consistently. Overall, this has been one of the best upgrades I’ve added to my space. It’s saved me water, time, and frustration, and it’s ideal for anyone needing instant hot water in a smaller area like a kitchenette, bathroom, or RV. I’ve recommended it to friends and family already because it simply performs beautifully and delivers comfort exactly where you need it. I’ve heard of some people even using it in there studio apartments by the way so this can have lots of applications of where it’s used.
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Reviewed in the United States on January 15, 2026 by Dylan Springstun
Style: 2.64Gallons
I’m really impressed with this mini water heater. The tank provides instant hot water right at the sink and no more waiting for the water to heat up. It’s compact enough to fit neatly under my rv sink,m, small kitchens, or bathrooms. The power heats efficiently and keeps the water consistently warm. Installation was straightforward, and the unit runs quietly. This is a reliable, space-saving solution for anyone needing point-of-use hot water and I highly recommend!
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Reviewed in the United States on March 15, 2026 by Marc
We installed this 1.8-gallon mini tank water heater in the corner of our kitchen next to the sink, and it has made a huge difference! Before, our main water heater was in the garage, so I had to wait 3–4 minutes for the hot water to reach the kitchen. A lot of cold water was wasted just waiting. Now, thanks to this compact and efficient unit, I get instant hot water whenever I need it. It solved the issue of water cooling down in the pipes, and it’s been working flawlessly since installation. Very easy to set up and doesn’t take up much space. Highly recommend this if you’re looking for a quick, energy-saving way to get hot water exactly where you need it!
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Reviewed in the United States on September 9, 2025 by N.В.
Style: 8Gallons
It worked for about 15 minutes and then quit.
Reviewed in the United States on April 24, 2026 by meagan weaver
Style: 1.6Gallons
Excellent 1.6 gal unit, well made, fairly easy to set up. Hot water almost instantly. 1 to 2 seconds! But, several things to be aware of. This unit, like most units like this one have a plastic pressure escape valve so that if the pressure of the hot water builds up too high it will have a way to get out. You have to either let the water escape through a hole in the floor or wall. If you can't do that you will need a bucket or container under the unit to catch the water, and you will have to check this container periodically. Another important thing: You can only use a regular house 15 amp circuit if there is not much else using that circuit. If the circuit you want to use has too many other things already using it, you will have to install a dedicated 15 amp circuit for just the heater alone. We have an unfinished basement so it was fairly easy for my wife and I to run about 40 feet of #12 gauge Romex from the heater to the active juncture box in our basement. If you have little or no electrical ability, you might have to hire this done, and it is not cheap. I had 2 quotes of over $1000 each just to run the Romex and not even wire everything! And I was supplying the Romex! which can cost $20-$50 depending how much you need. Needless to say we just took our time and did it ourselves! If you have a 20 amp existing circuit and are only running a few lights or vacuum cleaner on it you can probably get away with putting your new water heater on that circuit. The 1.6 gal. unit only uses about 10 amps. Run your input water from your hot water line! It will heat faster and will probably not even start your tankless water heater. But if you do start to receive hot water from your tankless heater, or from your regular tank, the new heater will just not need to make its own hot water for awhile. If you use your cold water line for your input water it will be coming from the outside and will be much colder than the house hot water line.
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Reviewed in the United States on February 13, 2026 by Amazon Customer
Style: 2.64Gallons
I installed this 2.64-gallon electric mini tank water heater on my food trailer, and overall it performs well. The water heats up quickly and provides hot water almost instantly, which is a big plus during busy service times. However, I did run into an issue with the pressure valve. When connected directly to a public water hookup, the valve had a constant flow of water coming from it and didn’t function as designed. To fix the issue, I had to purchase and install a different pressure valve. Aside from that, the unit itself works great and does what it’s supposed to do. Just be aware that you may need to upgrade or replace the pressure valve depending on your setup.
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Reviewed in the United States on March 23, 2026 by Robbie
Good fit for my 35 inch undersink Easy to install Looks nice Heats up fast Has enough power to get the water very hot Wish it has a better protection (a cover?) for the temperature control knub since I store other stuff under the sink Recommended for now
Reviewed in the United States on October 31, 2025 by Fong L.
Style: 1.6Gallons
I needed a temporary water heater to use while I wait for a replacement whole home one. This is the cheapest one that I have found at a reasonable size. The rest ware way too pricey for what I need. Heats water pretty fast and has a little knob on the front so you can adjust the temp. Installation is pretty simple just connect the water lines and plug it in. Doesn't leak and doesn't need some unnecessary app. Perfect.
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Reviewed in the United States on March 28, 2026 Reviewed in the United States on March 28, 2026 by Azzure26