10 Best Mini Electric Tankless Water of 2025

Tested and Reviewed: Top 10 Mini Electric Tankless Water deals with expert ratings from 8.1 to a perfect 10

May 2025 Edition

Editor's Choice

9.7

Save 7%

Daordaer

DAORDAER Mini Electric Tankless Water Heater 3000W 110V Constant Temperature Instant Hot Water Heater with Remote Control Digital Display On Demand Hot Water Heater (110V/3000W - BLACK(with plug))

7% OffFree Shipping

Editor's bottom line:

“This mini electric tankless water is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

INSTANT HOT WATER HEATER - Applied with 3000W heating system, the electric tankless water heater supplies instant hot water, 3 seconds to get hot water without preheating. Instant consistent and endless hot water of the maximum temperature reach to 55/131. It is perfect companion for sinks, bringing you perfect experience of comfort and relaxing.
REMOTE CONTROL OR TOUCH SCREEN - Ultra slim and smooth appearance design, beautiful and elegant. The temperature can be adjusted by remote control and touch control, which is more convenient to use, can avoid wet hands to adjust, and is safer; constant temperature water outlet three-level power adjustment, bid farewell to cold and hot
SAVE SPACE AND ENERGY - Compact design, our tankless Hot Water Heater is only the size of a small suitcase, and the wall-mount design frees up valuable floor space within your home. And tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used.
EASY TO INSTALL - The home water heater has a mini body, easy to install in the bathroom, kitchen, and under the sink.Standard 1/2 interface(inflow or outflow), can be directly connected to household conventional hose connectors.
SAFE TO USE - With high temp protection, dry heating protection, and electrical leakage protection you can rest easily knowing you have safe, on-demand hot water to use on your schedule. The electric and fluid systems are completely separated to prevent electric leakage and water pipe corrosion.

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Picked by 202 people today

Best Value

9.5

Save 40%

EcoSmart

EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology

40% Off

Main Highlights

Endless On-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature.Amperage Draw : 54 A.Special Features: Energy Efficient
Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 11.5 x 8 x 3.75 inches
Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used.
EcoSmart ECO 11 Sizing; 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications; provides between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution

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9.5

Save 5%

DMSIDN

Mini Tankless Water Heater Electric for Under Sink, Instant On Demand Hot Water Heater 110V 3000W with Digital Display, Kitchen, Bathroom, Camping, Black

5% Off

Main Highlights

Tankless electric water heaters provide instant hot water with 3000W large power and fast heat conduction heating tubes, allowing you to experience warmth. Do you live in a place with limited space and worry about insufficient hot water supply? This mini water heater can quickly heat water in just a few seconds and has good safety, allowing you to enjoy a continuous supply of hot water in a limited space. It can make your daily washing and cleaning activities warmer.
A Safe Heater - The various protections such as leakage protection, dry-heating protection, anti-electric wall technology, water-electricity isolation, sensor fault protection, and grounding protection and IPX4 waterproof rate make it safe to use without any worries.
Excellent Material - The instant water heater is made of stainless steel and high-quality ABS materials with injection molding, strong, wear-resistant, corrosion-resistant and durable. Adopting advanced water flow sensing technology, it overcomes the problem of difficulty in using the water heater due to low water pressure, and is suitable for high-rise residential buildings with low water pressure.
Easy to Operate - You just need to control the water flow to control the temperature (large water flow with low temperature, small water flow with high temperature), and you can immediately enjoy the warmth of hot water. The electronic screen will clearly display the current water outlet temperature, and even elderly people can quickly handle it.
Easy to Install - The portable water heater has a miniature body for easy installation in bathrooms, kitchens and under sinks. With the equipped accessories, premade fixing screw holes, English manual, and 1/2 inch standard interface, you can install this heater easily.
Save Space - Tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 4.57*2.8*7.68 inches. It is easy to install and fits every corner of your home, enjoy hot water anytime. This mini water heater is suitable for kitchen water, daily washing, RV, bar, school, hospital, community, hair salon and other places to wash hands, dishes and face.

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9.2

xwdzswgs

Tankless Water Heater Electric 110V, 3000W Instant Water Heater Under Sink, On Demand Hot Water Heater Electric with Digital Display, Electric Mini Water Heater for Kitchen Bathroom Washin

Free Shipping

Main Highlights

MINI INSTANT HOT WATER HEATER - This 110 volt water heater is equipped with state-of-the-art technology, with 3000W power, LED display. The electric tankless water heater 110v can raise the water by 82° F(0.3GPM) -131° F(0.5GPM) in 3-5 seconds, saying goodbye to long waiting times for hot water. The tankless electric water heater can set Fahrenheit or Celsius degrees by holding a power button for 6 seconds.
SAFETY INTELLIGENCE RELIABLE - This under sink water heater has multiple protection functions. IPX4 waterproof, leakage protection, dry-burning protection, automatic power-off in over-temperature and inactive states. Tankless hot water heater electric can meet your outlet temperature requirement. Large water flow means low temperature and small water flow means high temperature. TIP: Install vertically to avoid malfunction of the heating elements (E2).
LIGHTWEIGHT PORTABLE DESIGN - This small water heater compact design, is suitable for installation in the bathroom, kitchen under the sink, etc. The on demand water heater adopts a wall-mounted design, freeing up valuable space for your home, enjoy hot water at any time. This instant hot water heater under sink qualifies for ETL standard, you can expect the outstanding performance of this point of use water heater in the coming years.
EASY TO INSTALL AND APPLICATION - This under sink instant water heater comes with premade fixing screw holes, an English manual, and 1/2 inch NPT standard interface. This small electric water heater is ideal for spaces such as kitchens, apartments, bathrooms, RVs, and camping. The comfortable water temperature generated by this 110V water heater is suitable for cleaning food, bowls, clothes, face, hands, etc.
QUALITY WARRANTY & IMPORTANT NOTE - We provide a 24-month warranty for the electric water heater tankless. If you encounter any after-sales issues regarding the small hot water heater, you can always contact our electric tankless water heaters support team. Tip: This electric hot water heater is recommended to be connected with wires with a cross-sectional area of 2.5 square millimeters, and connected to trip switches of over 32a for use.

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9.0

Save 12%

Generic

Generic Tankless Water Heater Electric, Instant Hot Water Heater Under Sink, 3000W 110V On Demand Mini Water Heater for RV Kitchen Bathroom, White

12% OffFree Shipping

Main Highlights

With 3000W power, the water heater can raise the water by 45° F(0.3GPM) /27° F(0.5GPM) in seconds. You can adjust the water flow to meet your outlet temperature requirement. The Larger water flow, the lower outlet temperature; The smaller water flow, the higher outlet temperature. Not Suitable for Shower(Shower normally requires at least 1.8 gpm). You can set Fahrenheit or Celsius degrees by holding power button for 6 seconds.
IMPORTANCE before purchase: 3000W at 110V draw max 27A, Required breaker 31AMP, Wire gauge 10AWG, Water connection G1/2.
Premium material: 304 stainless steel lining, 316L stainless steel heating pipe, sturdy ABS shell, uni-corrosion brass interface. IPX4 waterproof, dry burning protection, leakage protection, and overheating protection upgrade safety level
Automatic standby mode ensures that you enjoy heated water at any time. One-touch operation provides convenience.
This mini water heater is ideal for limited spaces such as kitchens, apartments, bathrooms, RVs. Not Suitable for Shower(Shower normally requires at least 1.8 gpm)
IMPORTANCE for installation: 1. Install vertically to avoid malfunction of the heating elements (E2); 2. Tighten the pipe connectors with Teflon tape to prevent a short circuit (E2).

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8.8

Blisiour

3000w Electric Tankless Water Heater, Tankless Mini Hot Water Heater with Digital Display, Under Sink On Demand Instant Hot Water Heater for Home Kitchen Bathroom (Black)

Main Highlights

Safe to Use: When the water flow is turned off, it will directly enter the standby mode, making you more at ease. Four protection functions (grounding setting, anti-dry burning, leakage protection, and overheating protection), triangular socket, and IPX4 protection level can effectively ensure safety and let you use it with confidence. It can heat water to 68-122 ° F, so it won't cause burns to you
High Efficient: With the joint efforts of a 3000W power and a fast thermal conductivity heating pipe, it can provide uninterrupted hot water within 3-5 seconds of the faucet being turned on.Its size is only 4.33*2.8*7.87 inches, which can be easily installed under the sink and other narrow spaces
Clear Temperature: When turned on, you can long press the power button for 6 seconds to set the unit between Fahrenheit or Celsius degrees, allowing people accustomed to different units to quickly determine the current temperature
Easy to Operate: You just need to control the water flow to control the temperature (large water flow with low temperature, small water flow with high temperature), and you can immediately enjoy the warmth of hot water. The electronic screen will clearly display the current water outlet temperature, and even elderly people can quickly handle it
Selected Material: The 304 stainless steel lining is pressure resistant and explosion-proof. The 316L stainless steel heating pipe has good thermal conductivity, which can accelerate the heating process. The shell is made of ABS, which is hard and firm. The brass interface is prevents corrosionand wear ensuring good long-term performance

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8.6

Save 16%

VINABUKS

VINABUKS 5.5KW arXic Electric tankless mini Water Heater, 240V 30A instant water heater Undersink water heater Point-of-Use, On-Demand Hot Water Heater with Digital Display - White

16% OffFree Shipping

Main Highlights

Friendly to Small Spaces VINABUKS Electric Mini-Tank Water Heaters are lightweight and compact designed, and can be floor, shelf or wall-mounted, very friendly to any small spaces.
1.5Gallons Capacity 1.5gallons capacity glass-lined tank, stores up to 2.16 gallons water to provide hot water where you need it. Fast recovery rate eliminates long waits for hot water at your sink. Supplies up to 2 sinks at a time.
Reduce Heating Losses Short distance hot water supply, minimize wait time for hot water,saving energy and your bills.Whether as a sole water heating source for a single sink or as a supplement to an existing heater located far from the sink, this premium mini-tank water heater's stand-by loss is minimal !
This tankless water heater heats water only when needed, reducing energy consumption and eliminating standby heat loss. The digital display allows for precise temperature settings and easy monitoring, ensuring consistent and reliable hot water supply.
Details: Featuring 1/2" NPT pipe fittings, the unit allows for easy and straightforward installation. The required wire gauge is 10AWG/2 with grounding, and the mini unit activates with a water flow of 0.475 gallons per minute.
Our ServiceIf: you have any problems with the installation process, please contact us by email and we will solve your problem directly.We provide you with a one-year return and exchange service for our products.
Kindly Note: Required circuit breaker : 1x 2-Pole 30 AMP

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8.3

ECOTINYMACH

ECOTINYMACH 110V Tankless Water Heater Electric, 3000W Compact Water Heater Under Sink, Conveniently Convertible Between Fahrenheit and Celsius

Free Shipping

Main Highlights

Compact Design: ECOTINYMACH's tankless water heater is designed with a compact footprint, offering an efficient solution for heating water without consuming unnecessary space.
Convertible Temperature Scale: Unique feature of our heater allows you to switch between Fahrenheit and Celsius temperature scales conveniently, enabling you to monitor the water temperature in a scale that suits you best.
Easy Installation: Designed with simplicity in mind, our tankless water heater can be installed quickly and easily, saving you time and effort.
Electric and Energy Efficient: Being electric and tankless, this water heater from ECOTINYMACH is not only efficient but also environmentally friendly, helping you save on your energy bills and reduce your carbon footprint.
Installation instructions: Circuit breaker 32AMP, thread size: 1/2 "NPT, wire requires 2.5mm ² (13AWG).

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8.1

Save 14%

Antuony

Tankless Water Heater Electric, 3000W 110V Instant Hot Water Heater Under Sink, On Demand Water Heater With Remote Control, Mini Water Heater Electric Tankless Under Sink for RV, Kitchen (Black)

14% OffFree Shipping

Main Highlights

Safety and Intelligence: Tankless water heater adopts a safe, beautiful, durable, intelligent, ultra-thin and smooth appearance design, which is beautiful and elegant, with simple and direct LCD digital display, intelligent self-inspection, and automatic inspection of working status and performance to ensure safety
Energy Saving: Electric water heater adopts frequency conversion design, which automatically adjusts the power input according to the flow and temperature settings. When the water flow is reduced, the system will consume the least electricity, effectively reducing energy waste, which can help you save a lot of heating costs
Safe and Reliable: The instant hot water heater has a memory function or an automatic alarm function when the power supply position and failure occur. IPX4 waterproof, leakage protection, dry-burning protection, automatic power-off in over-temperature and inactive states.Leakage protection,when leakage ,the protection device will cut off the power supply immediately
Convenience: Multiple gear options, digital display gear and water temperature, easy to adjust, meet seasonal needs, no need to store water, no need to heat or keep warm in advance, hot water can be used as soon as it is turned on, no need to wait,Tankless water heater can keep water out of the water within 24 hours, Energy saving and environmental protection
Space Saving: This water heater has a compact appearance, it can be easily installed under the sink, it is very suitable for every corner of your home, no need to occupy an area, enjoy hot water at any time. Make sure it's the right size for you: 3KW at 110V, product measures 9" x 2.5" x 5"

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8.1

Save 10%

BOSCH

BOSCH Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted

10% OffFree Shipping

Main Highlights

CONVENIENT HOT WATER HEATER: 4 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 13.75 W x 13.75 H x 13.5 D Inches
LONG LASTING QUALITY: This electric water heater is easy to maintain and has premium glass-lined material for a long service life. (Amps 12A, Volts (VAC) 120)
INDEPENDENT INSTALLATION: 36-37" cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source
FAST RECOVERY RATE: Eliminates long waits for hot water at your sink, get on demand hot water at your every need (supplies up to 2 sinks at a time)
EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included); simply tap into the cold water line and install the water heater directly at the sink to provide hot water
RETAIL DISCLAIMER FOR MINI-TANKS: Per industry standards, we recommend inspecting the anode rod annually and replacing at the first sign of degradation. Failure to replace the anode rod may cause the tank to fail and leak. Damage caused to the product, and any subsequent property damage, resulting from not maintaining the anode rod is not covered under the manufacturers warranty.

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Our Best Overall Choice

Best Choice

9.7

Daordaer

DAORDAER Mini Electric Tankless Water Heater 3000W 110V Constant Temperature Instant Hot Water Heater with Remote Control Digital Display On Demand Hot Water Heater (110V/3000W - BLACK(with plug))

7% OffFree Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

INSTANT HOT WATER HEATER - Applied with 3000W heating system, the electric tankless water heater supplies instant hot water, 3 seconds to get hot water without preheating. Instant consistent and endless hot water of the maximum temperature reach to 55/131. It is perfect companion for sinks, bringing you perfect experience of comfort and relaxing.
REMOTE CONTROL OR TOUCH SCREEN - Ultra slim and smooth appearance design, beautiful and elegant. The temperature can be adjusted by remote control and touch control, which is more convenient to use, can avoid wet hands to adjust, and is safer; constant temperature water outlet three-level power adjustment, bid farewell to cold and hot
SAVE SPACE AND ENERGY - Compact design, our tankless Hot Water Heater is only the size of a small suitcase, and the wall-mount design frees up valuable floor space within your home. And tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used.
EASY TO INSTALL - The home water heater has a mini body, easy to install in the bathroom, kitchen, and under the sink.Standard 1/2 interface(inflow or outflow), can be directly connected to household conventional hose connectors.
SAFE TO USE - With high temp protection, dry heating protection, and electrical leakage protection you can rest easily knowing you have safe, on-demand hot water to use on your schedule. The electric and fluid systems are completely separated to prevent electric leakage and water pipe corrosion.

Show Price

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