4 Gallon Mini Tank Electric Water Heater, 1500W 110V, Under Sink Water Heater with Digital Display & Pressure Relief Valve, Hot water heater for Kitchen Bathroom RV Camper, 1/2 NPT Inlet/Outlet Port
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Availability:
11 left in stock
Arrives
Thursday, Jun 4
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Model: 4.0Gallons
Features
- 4 Gallon Mini Tank Electric Water Heater: Provides hot water under your sink with no waiting time. This compact storage water heater features rapid heating (fully heats in just 5-10 minutes) and a space-saving design, making it the perfect powerful hot water solution for both indoor and outdoor use. Ideal for daily kitchen tasks, bathroom needs, RV, or garage applications.
- Safe reliable small water heater: This electric water heater offers multiple safety features, including anti-leakage, overheat power-off, and dry burn protection for worry-free use. Its smart temperature control allows precise adjustment from 86F to 149F via a simple knob turn. Once heated, it auto-switches to energy-saving mode. The eco-friendly, flame-retardant polyurethane foam insulation retains heat longer, ensuring hot water whenever needed.
- High Quality, High Efficiency:Featuring a thickened, corrosion-resistant 304 stainless steel inner tank for effective rust and leak prevention. The 316 stainless steel heating element achieves an impressive 99% thermal efficiency, rapidly heating water to minimize waiting time and efficiently meet your hot water needs. Precision seamless welding ensures reliable performance even under high pressure, while the built-in digital display provides added convenience and peace of mind.
- Easy and flexible installation: This 110V/120V 1500W storage tank water heater is designed for easy installation, featuring standard 1/2 NPT inlet and outlet connections for quick setup. The included 31.5-inch power cord features a FCC certified plug, allowing direct connection to any standard outlet without special wiring. floor and wall-mounted, or installed under a cabinet, suitable for most home environments.
- Precautions water heaters under sinks: If the safety valve is not tightened properly, it may cause water leakage. We recommend that you wrap waterproof tape around the safety valve and tighten it during installation. Please use the two hoses provided to connect the inlet and outlet. If you encounter any problems or malfunctions during use, please notify us or send us an email, and we will provide you with comprehensive after-sales service solutions.
Brand: YONOOQ
Capacity: 4 Gallons
Power Source: ac
Product Dimensions: 11"W x 14"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
Mount Type: Wall
Is Electric: Yes
Smart Home Compatibility: Not Smart Home Compatible
Capacity: 4 Gallons
Item Dimensions W x H: 11"W x 14"H
Item Weight: 10 Pounds
Brand Name: YONOOQ
Model Number: 4.0Gallons
Manufacturer: YONOOQ
Manufacture Year: 2026
Included Components: Mini Tank Electric Water Heater x 1
Unit Count: 1.0 Count
Color: White
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Jun 4
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
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
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.
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Reviewed in the United States on April 15, 2026 by Russel G
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
Model: 2.5GAL
Works great for the kitchen sink.
Reviewed in the United States on February 10, 2026 by Edward Bowshier
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.
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.
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Reviewed in the United States on May 1, 2026 by John Smith
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!
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Reviewed in the United States on April 12, 2026 by Yoop
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.
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Reviewed in the United States on April 21, 2026 Reviewed in the United States on April 21, 2026 by MissP