Electric Mini Tank Water Heater, 8Gallon Under Sink On Demand Hot Water Heater, Wall or Floor Mounted, 1500W Point of Use Instant Hot Water for RV Kitchen Bathroom Restaurant
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Availability:
In Stock.
Arrives
Thursday, Apr 16
Style: 8Gallons
Features
- INSTANT HOT WATER & HIGH EFFICIENCY: Say goodbye to waiting for hot water. This 8gallon (30L) point-of-use mini-tank water heater delivers hot water instantly right where you need it. Powered by a 1500W heating element for fast recovery, its compact design and 99% thermal efficiency significantly reduce standby heat loss compared to large traditional tanks, providing immediate comfort while saving energy.
- TEMPERATURE CONTROL & SAFETY: The under sink water heater's built-in thermostat automatically shuts off and enters energy-saving mode once it reaches your set temperature (up to 167F), then seamlessly restarts heating when the water cools, ensuring an uninterrupted supply. The electric water heater's heating indicator light turns off during standby for clear status. Equipped with a 199F over temperature protection cut-off device.
- USER-FRIENDLY DIGITAL DISPLAY & OPERATION: Designed for effortless control, this under sink water heater features a clear digital display and an intuitive rotary knob. Easily adjust your desired water temperature from 86F to 167F (30C to 75C), with the real-time water temperature shown on the screen. Please Note: The on demand hot water heater electric must be completely filled with water before the instant hot water heater is switched on for the first time to ensure proper operation.
- DURABLE CONSTRUCTION & SUPERIOR MATERIALS: This instant water heater under sink features a robust 1.5mm steel tank lined with a 0.2-0.5mm blue enamel layer, offering excellent insulation and outstanding resistance to rust. The on demand water heater's heating element is made of durable SS316 stainless steel. Housed in a 2.5mm sprayed plastic shell with thick polyurethane foam insulation, it guarantees both structural integrity and maximum heat retention.
- WHAT YOU GET: 1 x electric hot water heater, 1 x accessory pack, 1 x user manual. Size: 17.13" x 17.13" x 14.37", Capacity: 30L / 8 Gallons, Rated Power: 1500W, Voltage: 110V / 60Hz, Current: 10A, Rated Pressure: 0.8MPa, Water Connections: 1/2" NPT, Waterproof Rating: IPX4. We stand behind our calentador de agua electrico with comprehensive customer support. If you have any questions, please feel free to contact us via email at any time.
Description
Electric Mini Tank Water Heater, 8Gallon Under Sink On Demand Hot Water Heater, Wall or Floor Mounted, 1500W Point of Use Instant Hot Water for RV Kitchen Bathroom Restaurant
Brand: Nessxa
Capacity: 8 Gallons
Power Source: ac
Product Dimensions: 17.13"W x 14.37"H
Special Feature: Dry Combustion Protection, High Water Pressure Protection, Leakage Protection, Overheat Protection
Brand: Nessxa
Product Dimensions: 17.13"W x 14.37"H
Special Feature: Dry Combustion Protection, High Water Pressure Protection, Leakage Protection, Overheat Protection
Color: White&Blue
Wattage: 1500 watts
Voltage: 110 Volts
Maximum Temperature: 167 Degrees Fahrenheit
Efficiency: 99% thermal efficiency
Style: 8Gallons
Mounting Type: Wall
Is Electric: Yes
Manufacturer: Nessxa
UPC: 631060185798
Part Number: 25071-30
Item Weight: 25.4 pounds
Item model number: 25071-30
Size: 8Gallons
Item Package Quantity: 1
Special Features: Dry Combustion Protection, High Water Pressure Protection, Leakage Protection, Overheat Protection
Included Components: Instruction Manual, Mini Tank Water Heater
Batteries Required?: No
Date First Available: October 29, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Apr 16
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: 8 Gallons
With a 1500W heating element and 110V design, it quickly delivers reliable hot water right at the point of use—perfect for under-sink installation in kitchens, bathrooms, RVs, or utility rooms. The compact size makes it easy to fit in tight spaces, while the 8-gallon capacity ensures enough hot water for multiple uses such as washing dishes, handwashing, or quick clean-ups. It heats efficiently, maintains steady water temperature, and reduces the waste and energy cost of running water through long plumbing lines. Installation is straightforward, and once set up, it provides consistent, on-demand performance. For households, small apartments, or RV owners needing convenience and efficiency, this mini tank water heater is a reliable upgrade that adds comfort and saves time.
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Reviewed in the United States on August 20, 2025 by Han-koo Yeo
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: 1.6Gallons
I'm so happy to finally have instant hot water in my Florida home. I've already installed it in my bathroom. This 1.6-gallon mini tank water heater, a 1500w storage water heater, is small but powerful. It works perfectly, without any problems, and was easy to install.
Reviewed in the United States on January 9, 2026 by Florence Doty
Style: 2.65 Gallons
This review is for the 1.6 gallon unit. I returned the 2.65 unit since it was larger than described in the ad and didn't fit under my sink. I am very pleased with this unit. It fits perfectly under the sink, was fairly easy to install and works like a charm. It heats rapidly. The digital display is bright and easy to read, although it reads in Celsius and not Fahrenheit. It is completely silent, too. For criticisms, it's Chinese made and doesn't even have the manufacturer's name on it. The directions are very inadequate and poorly translated. It says to descale the heating rods yearly, but doesn't give you a clue as to how. It also mentions draining the unit if it won't be used for a long term, but the is no drain plug. There is a round piece on the back of the unit that rotates. There is no mention of what this is or why it's there. Also, there is a pressure relief valve included. The picture of the unit in the ad shows it attached on the top between the inlet and outlet, but there is no connection point on the actual unit. I made the assumption to attach on the inlet side. All that said, the unit is working fine and hopefully lasts a long time.
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Reviewed in the United States on December 9, 2025 by Jack Mandel Jack Mandel
Style: 2.64Gallons
Work out great, l used it on my rv still working strong. Fit perfect for my application. Set the temp at the middle on the temp nub. Works great holds good amount of water for my application.
Reviewed in the United States on February 10, 2026 by Fair Critic
Style: 2.65 Gallons
*UPDATED* STOPPED WORKING AFTER A WEEK COMPLETELY. WONT EVEN ATTEMPT TO WORK! Very cool tool, that works great in seconds. My older 'instant' hit water boiler took a long time to get hot water to my upstairs sink so I decided to take a chance on this and it worked out great! Very easy to install and adjust. Energy efficient and fast! The water temperature is easy to control so you dont get burned. 10/10 homerun!
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Reviewed in the United States on August 8, 2025 by Ty