Search  for anything...

2.5 Gallon Mini Tank Electric Water Heater – 1500W 110V Under Sink Instant Hot Water Heater with Digital Display & Pressure Relief Valve, Compact Space-Saving Design for Kitchen, Bathroom, RV & Camper

  • Based on 20 reviews
Condition: New
Checking for the best price...
$109.99 Why this price?

Buy Now, Pay Later


As low as $18.33 / 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: Only 10 left in stock, order soon!
Fulfilled by Amazon

Arrives Thursday, Jul 30
Order within 12 hours and 48 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Model: 2.5Gallons


Features

  • Instant Hot Water On Demand No More Waiting:With 1500W high-efficiency heating element, this 2.5-gallon mini tank water heater provides hot water within minutes. Perfect for kitchens, bathrooms, RVs, and campers eliminates long warm-up time from main water heaters.
  • Compact 2.5 Gallon Design Fits Anywhere:Ultra-compact size (11.3"*11.3"*9.5") fits easily under sinks, in cabinets, or tight RV spaces. Ideal point-of-use solution for small homes, boats, and campers where space is limited.
  • Clear Digital Display & Easy Temperature Control:Built-in digital display shows real-time water temperature. Simple adjustment allows you to set desired heat level from warm to hot intuitive and user-friendly for all family members.
  • Energy-Saving Operation Lower Electricity Bills:Advanced insulation design minimizes heat loss, so the heater runs less frequently to maintain water temperature. Uses standard 110V-120V power efficiently saves energy compared to constantly running a large central water heater for point-of-use needs.
  • Versatile 110V-120V Plug & Play No Complex Wiring:Standard 110V-120V AC power works with most US household outlets. Simple installation no electrician needed for basic setup. Perfect for DIY installation under any sink.

Brand: YONOOQ


Capacity: 2.5 gallons


Power Source: ac


Product Dimensions: 11.3"W x 11.3"H


Special Feature: Anti-Leakage, Overheat Protection, Dry Burn Protection, Precise Temperature Control, Energy-Saving Mode, Eco-Friendly Insulation, Easy Installation, Digital Display See more


Power Source: ac


Special Features: Anti-Leakage, Overheat Protection, Dry Burn Protection, Precise Temperature Control, Energy-Saving Mode, Eco-Friendly Insulation, Easy Installation, Digital Display


Wattage: 1500 watts


Voltage: 110 Volts


Maximum Temperature: 149 Degrees Fahrenheit


Heat Output: 1500 Watts


Mount Type: Wall or Floor


Is Electric: Yes


Smart Home Compatibility: Not Smart Home Compatible


Capacity: 2.5 gallons


Item Dimensions W x H: 11.3"W x 11.3"H


Item Weight: 8.9 Pounds


Item Depth: 10.4 inches


Brand Name: YONOOQ


Model Number: 2.5Gallons


Manufacturer: YONOOQ


Manufacture Year: 2026


Manufacturer Part Number: S313027


Included Components: water heater electric


Unit Count: 1.0 Count


Color: White


Material Type: ABS, Stainless Steel


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jul 30

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.

Top Amazon Reviews


  • Compact Size
Model: 2.5Gallons
Works well. Nice compact size under my kitchen sink which bridges the time it takes for hot water to arrive from my large hot water on the other side of my house.
Reviewed in the United States on May 21, 2026 by Yukon Jack

  • Compact Water Heater
Model: 2.5Gallons
This is a great water heater unit for under the sink. The size is nice because it fits in a small space below the sink plumbing. It has a cord with a plug for supplying power. The biggest issue is most sink installations don't provide electrical outlets under the sink. On mine, I was able to drill a small hole for the cord and plug it into the outlet above the counter next to the sink. ... show more
Reviewed in the United States on April 15, 2026 by Russel G

  • Easy to install, hot water
Model: 2.5GAL
Fairly easy to install, like the instant hot water it provides.
Reviewed in the United States on March 22, 2026 by Elena E. Shields

  • 2.5 Gallon Mini Tank Electric Water Heater
Model: 2.5GAL
Works great for the kitchen sink.
Reviewed in the United States on February 10, 2026 by Edward Bowshier

  • Doesn't stay Hot
Model: 2.5Gallons
Water starts out scalding hot, but after about 1 minute goes to warm, I have the thermostat set at 120. For washing dishes , I would like for it to stay hot. I would not buy again.
Reviewed in the United States on May 26, 2026 by M. P.

  • Instant hot water again
Model: 2.5GAL
I have a bathroom at the far end of my house that takes a genuinely frustrating amount of time to get hot water from the main water heater. I'd been putting up with it for years and finally decided to solve the problem properly with a small point of use unit installed under the sink. This compact tank has worked exactly as I hoped and the difference in daily convenience has been noticeable from day one. Installation was straightforward and didn't require any special wiring since it plugs directly into a standard outlet under the cabinet. Connecting the inlet and outlet hoses was simple with the included hardware and the whole process took me about an hour working carefully and following the instructions. The tip about wrapping the safety valve with waterproof tape before tightening is worth paying attention to, I followed it and have had zero leakage since installation. The heat up time is impressively fast. From cold it reaches usable temperature in well under ten minutes, and since it holds 2.5 gallons it's ready to deliver hot water immediately when I need it rather than running the tap waiting for warmth to arrive. The digital display showing the current water temperature is a feature I appreciate more than expected since it lets me know exactly what's ready without any guesswork. The temperature knob gives precise control across the full range and the auto switch to energy saving mode after heating means it's not running at full power constantly. The compact footprint fits neatly under the sink cabinet without taking up meaningful storage space. A practical and well built solution to a common household frustration. ... show more
Reviewed in the United States on May 1, 2026 by John Smith

  • Solid single fixture unit!
Model: 2.5GAL
Installed under the bathroom sink that is always running cold at start-up because of the distance to my main heater. This heater solved the problem. The best feature of this unit is it is 120vac and can be plugged into a standard 15a house outlet. I have never had an issue with recovery as it just supplies the one sink fixture. Comes with good instructions and is a straightforward install. Temperature is good and all functions are working well after 45 days. No leaks and hot water! ... show more
Reviewed in the United States on April 12, 2026 by Yoop

  • Perfect for under bathroom sink Perfect for under bathroom sink
Model: 2.5GAL
I love this water heater. The size fits right under the sink in the bathroom and will give me hot water on demand instead of waiting for the hot water to travel from the big tank on the other end of the house. It came with all the necessary parts for installation, a good manual and at a more than reasonable price point. This will save on water usage as well as electricity. It functions as a way to get immediate hot water reliably and quickly. This is a wonderful upgrade. ... show more
Reviewed in the United States on April 21, 2026 Reviewed in the United States on April 21, 2026 by MissP

Can't find a product?

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