Tankless Water Heater Electric 110V, 3000W Under Sink Instant On Demand Hot Water Heater, Portable Mini Water Heaters with Digital Display for Kitchen Bathroom RV (Mini White, M)
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Features
- Tankless Water Heater Electric DDAYBF 110V Mini Tankless Water Heater Electric delivers hot water in 3-5 seconds flatno preheating, no waiting around for sink-side hot water! Reaches a max temperature of 55C/131F, providing endless comfortable hot water for washing dishes, hands, fruits, clothes, and more. Perfect for replacing bulky tank-style heaters that waste energy on constant heating
- Multi-Layer Safety Protection Built for peace of mind with IPX4 waterproof rating, leakage protection, dry-burn prevention, overheat protection, and auto-shutoff when idle . The LCD digital display lets you monitor operating status in real time, while intelligent detection ensures consistent performance and safetymeets North American electrical safety standards
- Space-Saving & Versatile Design Compact wall-mounted design frees up valuable counter and storage space, making it ideal for kitchens, apartments, bathrooms, RVs, and camping trips . This point-of-use water heater is portable enough for on-the-go hot water needs, yet powerful enough to handle daily household tasks
- Easy Installation & Dual Temperature Modes Comes with pre-drilled mounting holes, English instructions, and 1/2-inch NPT standard connections for quick DIY setup. Important: Requires 13AWG (2.5mm2) wiring and a 32AMP+ circuit breaker (critical for safe operation). Switch seamlessly between Celsius and Fahrenheit by holding the power buttonperfect for US/Canadian users
- Energy Efficient & 24-Month Warranty Boasts 99% thermal efficiency (far higher than tank heaters) with adjustable power output that adapts to water flow and temperature settings . Reduces energy waste by using only whats needed, cutting utility costs. Backed by a 2-year warranty and 24/7 supportpackage includes heater, 4 mounting screws, and user manual
Brand: DDAYBF
Power Source: ac
Product Dimensions: 4.6"W x 7.8"H
Special Feature: Tankless Design, Multi-Layer Safety Protection, Space-Saving & Versatile Design, Dual Temperature Modes, Energy Efficient See more
Color: Mini White
Brand: DDAYBF
Product Dimensions: 4.6"W x 7.8"H
Special Feature: Tankless Design, Multi-Layer Safety Protection, Space-Saving & Versatile Design, Dual Temperature Modes, Energy Efficient
Color: Mini White
Wattage: 3000 watts
Voltage: 110 Volts
Maximum Temperature: 131 Degrees Fahrenheit
Efficiency: 99%
Mounting Type: Wall
Is Electric: Yes
Manufacturer: DDAYBF
UPC: 725086431738
Item Weight: 2.42 pounds
Item model number: Tankless Water Heater Electric
Size: M
Special Features: Tankless Design, Multi-Layer Safety Protection, Space-Saving & Versatile Design, Dual Temperature Modes, Energy Efficient
Included Components: Tankless Water Heater Electric
Batteries Included?: No
Batteries Required?: No
Date First Available: November 19, 2024
Frequently asked questions
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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
After I had it installed under the kitchen counter, the very first thing that I did was to see how fast it could transform a regular cold stream of water into comfortable hot water. I activated the faucet, pushed the power button on the device, and saw the digital display as the numbers increased. The temperature of the water reached the point that I like for washing dishes in only a little period of time, and the flow remained consistent while I rinsed out the plates and the pans. I am not required to leave the faucet running and periodically check with my fingertips to see if the water is ultimately warm enough. I began to incorporate it into little activities over the course of the following several days, such as rinsing my hands while I was cooking, scrubbing cutting boards, and giving reusable containers a quick rinse. Each time, the tiny heater was able to maintain its performance. The machine reacted without any delay, even when I switched the tap between the on and off positions many times in succession. From the perspective of a user, it seems really natural, much like when you are using a normal sink, with the exception that the hot water is constantly available instead of coming later than expected. I would occasionally forego washing a little batch of dishes because I knew that doing so would require me to put up with cold water or wait a long time for warmth to come, but I have changed my habits in this regard. I am now able to get water by only switching on the faucet, and I can quickly attend to a few things since I am aware that the heater will respond instantly. It has been more straightforward for me to maintain the cleanliness of the sink and to reduce the amount of clutter on my counters as a result of this.
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Reviewed in the United States on November 30, 2025 by CONG CHUA DAU TAY
I live in an old apartment building where the hot water tank is downstairs and it takes a minute and a half of running the tap for the water to finally heat up in my third-floor kitchen sink. That's a ton of wasted water and energy. I put this under-sink instant water heater in, and it completely solved the problem. The fact that it delivers hot water in 3-5 seconds flat means I can rinse dishes, wash fruits, and clean up small messes immediately without waiting. It only heats the water when I turn the tap on, unlike the giant tank heater downstairs that runs constantly. The 99% thermal efficiency claim makes sense; my utility bill should definitely reflect the savings. I’m an apartment dweller, and the compact size is a lifesaver—it doesn't hog the limited space under the counter. The LCD digital display is easy to read. If you’re a renter or living in a condo and dealing with long waits for hot water at a specific fixture, this is an excellent space-saving, energy-efficient upgrade that makes kitchen tasks much easier.
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Reviewed in the United States on November 20, 2025 by Amazoncustomer
This tankless electric water heater is really convenient! I installed it under the kitchen sink. It can be heated as needed. There is no need to wait for the water tank to heat up. It can be used as soon as it is turned on. It does not waste water, and saves time and electricity! The digital display is clear, the temperature is clear at a glance, and it can be accurately regulated, and it is safe to use! I really like its portable mini design, which does not take up space, suitable for the kitchen or bathroom, easy to install, and does not require complicated pipeline transformation! Small and efficient, convenient to use, very suitable for family use, making life more comfortable and convenient, highly recommended!
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Reviewed in the United States on November 25, 2025 by Rich X
This portable water heater is a compact, cylindrical unit about the size of a large water bottle, and it arrived with a standard power cord and a built-in adjustable thermostat, but no additional hoses or attachments. I did not notice any unusual smells, like burning dust or plastic, during its first few uses, which was reassuring. I also really appreciate that it does not attempt to heat a large volume quickly, as its size clearly indicates it's meant for smaller, contained bodies of water like a tub or basin.
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Reviewed in the United States on December 12, 2025 by Amazon Customer
I’ve been using this immersion heater to warm water for small tasks, and it has been very handy. The stainless steel tube feels solid, and the size is close to what the listing describes about 10 inches long with a lightweight cable. When I plug it in, the indicator light lets me know it’s working, and the water starts warming up steadily. I usually use it with a 5-gallon bucket, and it brings the temperature up faster than I expected. The protective cover also helps keep the surface from feeling too hot.
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Reviewed in the United States on December 6, 2025 by Customer Review
I installed this in my travel trailer for the kitchen sink. The size works well in the limited space. Following the wiring instructions was important for safe operation. The water heats up quickly at medium flow settings. I use it for washing dishes and quick rinses. The display is readable in different lighting conditions. After a few months of use, it has handled road vibrations without issues. For smaller spaces where immediate hot water is needed, this unit performs as expected. The purchase included all necessary mounting hardware.
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Reviewed in the United States on November 23, 2025 by Bryna
I like soaking in hot baths, but the water cools faster than I want, so I tried this immersion heater. The size works well in my bathtub without getting in the way. The heating shell is made of stainless steel, which holds up well against water and does not rust easily. It has waterproof protection and a shutoff feature that turns it off if anything unusual occurs, which makes it feel safer to use. The heating speed is quick, and the temperature stays steady instead of rising too much. Now I can warm the bath before getting in and enjoy consistent heat the whole time. It has made my nightly routine easier and more relaxing.
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Reviewed in the United States on November 20, 2025 by Andromeda