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Tankless Electric Water Heater – 110V 3000W Mini Instant Hot Water Heater for Under Sink, On-Demand Heating for Kitchen, Bathroom, RV, and More, Black

  • Based on 11 reviews
Condition: New
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Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon

Arrives Sunday, Aug 31
Order within 22 hours and 21 minutes
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Features

  • FAST, EFFICIENT HEATING: Delivers 3000 W of instant hot water, raising temperature up to 45 F at 0.3 GPM or 27 F at 0.5 GPM for uninterrupted comfort.
  • DURABLE MATERIALS: Combines 304/316L stainless steel, a corrosion-resistant brass interface, and a tough ABS shell to ensure long service life.
  • ADVANCED SAFETY DESIGN: Features dry-heating protection, leak detection, overheat shutoff, and IPX4 waterproofing for worry-free kitchen, bath, or RV use.
  • SIMPLE ONE-TOUCH CONTROL: Intuitive button panel with auto-standby mode lets anyone dial in temperatures from 68 F to 122 F with ease.
  • COMPACT & VERSATILE: Small 4.33 " 4.33 " 7.87 " profile fits under sinks, in apartments, offices, or RVsperfect where space is at a premium.
  • IMPORTANT INSTALLATION NOTES:Install the unit vertically to avoid malfunctions (Error Code E2), as with most tankless water heaters. Always apply Teflon tape to pipe connectors to prevent leaks or short circuits

Description

Stop waiting for hot water and start saving energy. This compact 3000 W heater provides on-demand comfort without the bulk or standby losses of a storage tank. Stainless-steel internals and brass fittings resist corrosion, while multiple safeguards ensure reliable, long-lasting performance. Key FeaturesContinuous, zero-delay heating elementDigital 68 °F – 122 °F selectionOverheat, dry-burn, leak, and pressure protectionCompact 4.33 " × 4.33 " footprint; 7.87 " heightEasy wall-mount design with included hardware Applicable UsesPerfect for kitchens, bathrooms, utility sinks, office break rooms, studio apartments, RVs, campers, tiny homes—any tight space needing dependable hot water. Product SpecificationsPower: 3000 WVoltage: 110 V AC, 50–60 HzDimensions: 4.33 " × 4.33 " × 7.87 "Weight: 2.42 lbTemperature Range: 68 °F – 122 °FWorking Pressure: 5.8 – 174 psi (0.04 – 1.2 MPa)Minimum Flow Rate: 0.3 GPMWaterproof Rating: IPX4Power Cord Length: 3.44 ft Package ContentsCompact instant water heaterWall-mount accessory kitEnglish user manual PrecautionsIndoor use only; avoid rain or direct splashes.Purge air and run water before energizing to prevent dry heating.Use a properly grounded 110 V, 15 A circuit.Disconnect power before cleaning; wipe with a damp cloth only. Conclusion Upgrade any small space with endless, energy-saving hot water. Rapid heating, durable materials, and robust protections make everyday tasks faster, cleaner, and more comfortable.

Brand: WEMAKMAK


Power Source: ac


Product Dimensions: 4.33"W x 7.87"H


Color: Black


Wattage: 3E+3


Brand: ‎WEMAKMAK


Power Source: ‎ac


Product Dimensions: ‎4.33"W x 7.87"H


Color: ‎Black


Wattage: ‎3E+3


Voltage: ‎1.1E+2 Volts (AC)


Efficiency: ‎Energy-efficient


Mounting Type: ‎Wall


Is Electric: ‎Yes


Manufacturer: ‎WEMAKMAK


Item Depth: ‎Less than 4 inches


Item Weight: ‎2.4 pounds


Item model number: ‎2024072702


Included Components: ‎1


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: July 27, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Aug 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.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Would not buy again
Blows the fuse. Yes it is a fuse rated for it and I tried moving to another new breaker. Would not buy again
Reviewed in the United States on April 9, 2025 by I love a good book

  • Most bad reviews are user error rage reviews
Bad reviews are mostly from people who somehow bought it before reading the description and somehow completely missed instructions it came in with. It’s a great, under sink water heater. Pulls too much for an rv but works great in my office bathroom. Remember, it’s tiny, so it will work better on low flow. Idk why people were expecting to shower with this lol. Some people… ... show more
Reviewed in the United States on May 8, 2025 by Areg

  • dose not work
after spending time finding fittings, they do not work. no heat and the indicator light just spins. do not recommend
Reviewed in the United States on February 6, 2025 by Diana

  • Doesn’t work!
After hours of installing and running to Ace for fittings. it does not work. Yes professionally installed. Junk!
Reviewed in the United States on January 8, 2025 by vitamin

  • Replaced a broken RV water heater
Our old RV's water heater went out last year and we wanted a simple solution to replace it (instead of paying $600+ to replace the original). This water heater actually does a great job of supplying warm water to our sink and shower and couldn't have been easier to setup. I do notice significant power usage when it is heating but we just have to manage our other appliances while it is in use. Overall I'm very happy with this heater! ... show more
Reviewed in the United States on November 18, 2024 by Mike MacDonald

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