Best 220 V Water Heaters in 2025

CONTINUOUS FLOW – Advanced Flow Control patented technology invented by Stiebel Eltron, automatically maintains water temperature for constant comfort. It’ll reduce flow slightly if hot water demand exceeds capacity. Hot showers will never be interrupted again

SPACE & ENERGY SAVER – Its small, sleek white design saves space yet still provides endless hot water for your whole house, and no venting is required. Eco friendly unit saves energy with auto-modulation and the ability to electronically control water flow. Savings monitor even shows how much you save on energy costs

EASY OPERATION – Electronic switch activates the hot water heater and it’s noise free while in use. Has a digital temperature display and preset temperature and memory buttons, while the interior solid copper heating system does all the power work

External adjustable digital thermostatic control with LED display (+/1 degree accuracy

Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control

Simple installation – 1/2 NPT adapters included; side 1/2 inch Compression water connections

Saving Energy & Money - Built in insulation foam, reduces heat loss. 2.5-gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it.

High Quality Built & Elegant Design- Camplux electric water heater has glass-lined tank for long service life and easy to maintain. Elegant streamline design cover, made your kitchen more pretty.

UL Approval Safety - Thermostat Control allows adjustment of water temperature. High Limit device provide protection while overheating.

【INSTANT & SUFFICIENT HOT WATER】 With real powerful 18kW smart heating system, the tankless hot water heater electric ECO180B supplies sufficient instant and endless hot water of 120℉ or higher in seconds, no waiting for preheating nor terrible temp fluctuation during shower time any more and no worry of running out of it. Perfect companion for whole house use, including shower, sink faucets, dishwasher, washing machine, etc.

【SELF MODULATION INSTANT WATER HEATER】The electric on demand tankless hot water heater ECO180B adjusts exact power input based on current flowrate and temp setting. For example, less power will be consumed by the smart water heater when you reduce water flow, thus, you get ideal temperature instead of scalding hot, which ensures comfortable experience and excellent energy efficiency. Also, optimal energy efficiency of 98% saves considerable electric charge for you.

【CONVENIENT USE】The electric tankless water heater 18kW comes with digital display & touch control panel so temp setting is easy job. Best of all, useful information on the screen helps you get full understanding of the working status of the 240v water heater tankless, you needn’t go through hard lesson of temp setting. Now turn on the faucet and let the smart instant hot water heater do the rest.

【INSTANT & SUFFICIENT HOT WATER】Applied with 5.5KW heating system, the electric water heater supplies instant, consistent and endless hot water of 116℉or higher temp shortly, no waiting for preheat nor terrible temp up & down, perfect companion for sinks. Time to get rid of those "lukewarm" toys.

【SMART SELF ADJUSTMENT】The hot water heater adjusts power input based on flow rate and temp setting in real time. For example, less power will be applied by the system when waterflow reduced, thus you still get ideal temperature instead of scalding hot water, which means comfortable experience. Optimal energy efficiency of 98% saves considerable electric charge.

【CONVENIENT USE】The tankless water heater comes with digital display & touch control panel so temp setting is easy job. Now turn on the tap and let the smart unit do the rest, you needn’t go through hard lesson about temp setting by a mixer tap without any hint. The Black model comes with Remote control, useful for installation under sink.

☼ Endless Hot Water: Imagine you are the last one in your family to take a shower before heading out for the day. You turn on the faucet and the water is freezing cold. Too bad you don’t have an Airthereal Electric Tankless Water to provide endless hot water on demand with no preheating, temperature fluctuations, or running out of hot water in the tank.

☼ Save Space: That water heater in the basement or utility closet takes up a ton of space. This wall-mounted water heater uses 90% less space than a traditional hot water heater with a tank.

☼ Save Energy: Water is only heated when you need it, not stored in a hot water tank. The self-modulating temperature technology only uses energy to heat up water while you are using it to save up to 50% on water heating costs compared to a typical tank water heater.

☼ Endless Hot Water: Imagine you are the last one in your family to take a shower before heading out for the day. You turn on the faucet and the water is freezing cold. Too bad you don’t have an Airthereal Electric Tankless Water to provide endless hot water on demand with no preheating, temperature fluctuations, or running out of hot water in the tank.

☼ Save Space: That water heater in the basement or utility closet takes up a ton of space. This wall-mounted water heater uses 90% less space than a traditional hot water heater with a tank.

☼ Save Energy: Water is only heated when you need it, not stored in a hot water tank. The self-modulating temperature technology only uses energy to heat up water while you are using it to save up to 50% on water heating energy compared to a typical tank water heater.

ON/OFF Dial Control with adjustable digital temperature display

Self-modulating power control

8kW Model Flow Rate: up to 1.95 GPM

Power setting and constant temperature function with the mini size water heater, 3 power levels(5.5KW 4.5KW 3.5KW), 10 power settings per level

Super low water pressure start-up, and microcomputer memory, anti-dry functionality, water leakage and earth leakage prevention.

Digital LCD temperature dispaly with touch control in 1-degree increments allows control of hot water

Includes FREE wall support/tube - a $12.99 value

Other offers on Amazon show support tube but small print says not included

220 volts - EXCLUSIVE 3 POWER SETTING SELECTOR

The 220V eco 18Kw unit requires (2) 50 amp breakers and must be installed by a professional plumber or electrician to ensure safety and quality

German-designed with high quality stainless steel water channel and heating chamber

Smart technology: easy management and simple adjustments on a LCD panel allows you to program the exact desired water temperature thereby optimizing electricity consumption

➤Under Sink Heater- For the small place under the sink, this water heater helps produce lasting stable water follows in the place where you need it. Temperature range 45°F-167°F (Relief Valve has been upgraded)

➤Save Energy - Advanced thermostop technology from Germany results in low cost of standby loss power consumption and money. EPS foaming technology for better insulation. 1.5KW low-power.

➤Long Life - Stainless Steel tank do prevent corrosion from water, is not easy to bump and crack, is not easy to leak water, and be lighter, stronger, more durable.

NOTE: Due to the negligence of the workers, some water heaters have no manuals, please contact customer service if necessary, and the customer service will send you an electronic version of the manual！

Since each product has been quality tested before leaving the factory, a small amount of water remains inside each water heater!

【ENDLESS WATER HEATER】3 seconds to get hot water without preheating. Instant consistent and endless hot water of the maximum temperature reach to 131 ℉. Tankless electric water heater on demand suits for sinks，Not suitable for bathing.

【Electric Water Heater on Demand】Applied with 6.5kW heating system, the instant water heater electric ECO65 supplies instant, sufficient and endless hot water of 110℉ or higher temp in seconds, no waiting for preheating nor terrible temp fluctuation, perfect companion for sink faucet. Time to get rid of those 110V "lukewarm" toys.

【Smart Self Modulation】The tankless water heater electric ECO65 adjusts power input based on flow rate and temp setting in real time. For example, less power will be applied by the smart instant hot water heater when water flow is reduced, thus, you get still ideal temperature instead of scalding hot, comfortable experience for sure. Optimal energy efficiency of 98% saves considerable electric charge.

【Simple Tankless Water Heater】The electric tankless water heater ECO65 comes with digital display & touch control panel so temp setting is easy job, you needn’t go through hard lesson of getting full understanding of working status of the 240v water heater tankless. Now turn on the faucet and let the smart tankless hot water heater do the rest.

【Tips】 The instant hot water heater does not store water (Water Temperature Range: 30-55℃,Can’t change to Fahrenheit, Voltage:AC 110V;Wire Requirements:6mm² Copper wire (#9 awg wire); )Trip switch:≥63A(Otherwise it will trip).Applicable Water Pressure：0.04-1.2Mpa.The outlet water temperature depends on the inlet water temperature and water flow. The larger the water flow, the lower the temperature, the smaller the water flow, the higher the temperature.

【Instant Heating】 Applied with 5.5KW heating system,24 hours ready to continuously supply instantaneous hot/warm water at preset temperature throughout your home only when needed. NO standby energy consumption. NO wait for tank to fill up. Temperature ranges from 86°F- 131°F, requiring 63A Circuit Breaker and 1/2"NPT water connections.

【Light Weight】8.8"W×8.2"H×3"D,The sleek tankless water heater is compact as an oatmeal box, making it possible to install anywhere close to outlet and avoid energy waste. It can be mounted horizontally, vertically, obliquely, ideal for kitchen, bar, school, hospital, community and hair salon.

Consistent Hot Water: The under sink water heater only heats the water when you need it and no waiting to preheat, saving up to 50% in energy consumption. The temperature rise of 1.0 GPM is 50°F. Easy to get hot water between 85°F - 131°F in two seconds

Smart Adjustment: Easy to read the real-time temperature, according to the sink flow rate to adjust your temperature increase or decrease through a LED touch display

Safe Use: With a 304 food-grade stainless steel water tube design, you don't need to be concerned about scaling reducing the functional life span of the unit when you use hard water. At the same time, this small water heater is accompanied by more safety features: anti-leakage, waterproof, over-heating protection, dry combustion protection, troubleshooting self-test, etc

❄️ ❄️ INSTANT ELECTRIC WATER HEATER - Equipped with 6.5KW heating system, supplies instant, endless hot water of 50℃(122℉) shortly, no waiting for preheat, perfect for home shower. Instantaneous water heater can be quickly heated for 3 seconds without preheating and high thermal efficiency. The touch screen water heater gets very hot in 3 seconds, no need to wait for a real thermostat. Tankless electric water heater with 6500W output reduces long waiting times

❄️ ❄️ SAFE AND DURABLE - Tempered glass, heat, insulation, anti-corrosion, anti-deformation, copper galvanized inlet and outlet, durable, anti-rust. Applied with multiple protection devices, every piece goes through strict tests to ensure 100% safe. Safe and intelligent, no water flow stops heating. For those with a bad memory, tankless instant heat water heaters are more energy efficient, you don't have to worry about wasting electricity by not unplugging

❄️ ❄️ CONVENIENT USE - The tankless water heater comes with digital display & touch control panel so temp setting is easy job. Now turn on the tap and let the smart unit do the rest, you needn’t go through hard lesson about temp setting by a mixer tap without any hint. You can touch operate the black indoor water heater freely. Easy installation, can be hung up. It is suggested to mount vertically, ideal for bathroom, hair salon, kitchen, bar, school, and hospital

💧【INSTANT ELECTRIC WATER HEATER】No need to preheat before using the tankless water heater. Whenever you turn on the faucet, the water flows at the temperature you want. No stand-by heating loss. Microcomputer control, multi-power setting, suitable for different temperatures needed in different seasons.

💧【SAFETY】Adopt the technology of water and electricity isolation, and electric insulation walls to protect people from electric leakage damage. With multiple protection devices such as dry heating protection, leakage protection, over temperature protection, sensor trouble protection, etc

💧【SMART】The water heater comes with an LED digital display and touches control panel, freely adjustable the temperature between 86℉-131℉. And the temperature memory function can avoid repetitive work.

【Compact & Lightweight】The tankless water heater propane has been specially designed to be compact and lightweight (14 lbs) so it can be taken as a companion to camping, RV living, cabins, farms and anywhere else you want to go. You can enjoy comfortable hot water shower like at home when you are outside with GREATBEAR propane water heater.

【On Demand Hot Water】With a heat output of 37000BTU/h, you can expect a decent flow of hot water from the MT158 portable propane water heater. Best of all, you can get instant and endless fresh hot water from it at any time. No preheating required. It ensures you get a relaxed and perfect ending after a long day of outdoor activities.

【Simple Knob Design】The gas knob and water knob are designed to be simple. The water temperature will rise if you turn one of the knobs clockwise or decrease if one of the knobs to be turned counterclockwise. Our GREATBEAR propane tankless water heater aims at continuous innovation and improvement and believe that it is the best way to be user-friendly.

【5500W Instant Constant Temperature Tankless Water Heater】The 5500W fast constant temperature heating system is adopted. The electric water heater without water tank provides instant hot water, which can be obtained in 3 seconds without preheating. Instantly stable and endless hot water with a maximum temperature of 55 ° C/131 ° F It is the perfect companion of the sink, bringing you the perfect experience of comfort and relaxation.It is recommended to use 220v voltage for power supply, so that the water heater can reach the maximum heating power. If 110v voltage is used, the heating efficiency of the water heater may be reduced.

【360°Unrestricted Easy Install】The internal integrated cast aluminum structure allows this water heater to be installed without any restrictions. It can be installed 360 degrees in any narrow space, such as the bathroom, kitchen, and sink. In addition, the water heater with complete electrical and water flow partition can be installed either vertically or upside down, depending on your needs. Standard 1/2 connector (flow in or flow out), which can be directly connected to the household conventional hose connector.

【Safety Hydroelectric Divisional Operation Structure】The internal integrated cast aluminum heating design of this water heater completely separates the electrical and fluid systems, so as to prevent electric leakage and water pipe corrosion while greatly improving the safety. With double electric wall, dry burning prevention, overvoltage protection, grounding protection, thermostatic scald prevention, IPX4 waterproof, over temperature protection and other powerful functions, you can rest easily because you know you have safe hot water to supply on demand.

【INSTANT & SUFFICIENT HOT WATER】Applied with 6.5KW heating system, the electric water heater supplies instant, consistent and endless hot water of 86-131℉, no waiting for preheat nor terrible temp up & down, perfect companion for sinks. Time to get rid of those "lukewarm" toys.

【SMART SELF ADJUSTMENT】The hot water heater adjusts power input based on flow rate and temp setting in real time. For example, less power will be applied by the system when waterflow reduced, thus you still get ideal temperature instead of scalding hot water, which means comfortable experience. Optimal energy efficiency of 98% saves considerable electric charge.

【CONVENIENT USE】The tankless water heater comes with digital display & touch control panel so temp setting is easy job. Now turn on the tap and let the smart unit do the rest, you needn’t go through hard lesson about temp setting by a mixer tap without any hint.

Instant Hot Water - Provides on demand hot water for point-of-use applications, perfect for under / over sink placement, minimal wait time to meet your hot water needs. 24 Hours standby. Draw 25Amp @ 240V

Sleek Compact Size - 10.95" x 7.4" x 2.52", Small water heater conveniently designed to fit in tight places within your home or business, like under cabinets and sinks, hair salons, bar counters and hotel receptions, saving valuable storage space

Long-lasting Quality - Cast aluminum heating element uniquely desgined to separated from water while heating, significantly reducing scale, corrosion and mineral buildup, achieving long-life service with low maintenance. SUS 304 stainless steel water tube

<p>💡【FAST HEATING】3 seconds that is hot, really thermostat without waiting.NOTE: This Product Must be Connected with an Air Circuit-Breaker, Not a Plug-in Socket.（Air circuit breakers are not included.) </p >

<p>💡【SAFE AND INTELLIGENT】No water flow stops heating, 0.1 second automatic power-off when leakage.</p >

<p>💡【DURABLE】Copper galvanized inlet and outlet, anti-rust, Tempered glass, heat, insulation, anti-corrosion, anti-deformation, Stainless steel hose explosion-proof.</p >

☸【SUPERB QUALITY】Instant heating, no more waiting for hot water, especially suitable for big families.3 Seconds hot water, Unique fast heating element,no leakage,no need to wait long. No water flow stops heating, safe and intelligent.

☸【INTELLIGENT CONSTANT TEMPERATURE】High precise thermostat ensures a constant temperature.Water quantity stabilization device to reduce water temperature fluctuation.Continuous hot water for a better bathing experience.

☸【RAPID HEATING】This water heater can be started under low water pressure, thus to suit high buildings, small apartments, cabin or suburb area etc.Users on higher floors can also enjoy the shower experience.

[Instant Unlimited Hot Water] - REQUIRE 3 SET x Double-pole 40AMP Breakers to Achieve 240V for this On demand tankless electric water heater, providing hot water in 3 seconds when you need it and as long as you need, eliminating wait time, never run out of hot water again and No More cold shower. Flow Rate 5.27GPM @35°F Rise

[Self-modulating Power] - Self-modulating technology regulating the amount of energy required to heat water only when you need it with 99.8% efficient, saving up to 60% on water heating cost comparing to traditional tank water heater. Wall mounted compact size with no water tank, convenient for any spaces, saving floor space and fitting into tight spaces.

[Stable Water Temperature] - Auto adjusting energy consumption basing on income water temperature and flow, ensuring maximum efficiency, continuous stable temperature and optimal power usage. Digital temperature display allowing adjustment in 1° increment from 80°F to 140°F. Heating element separated from water tube significantly reducing scale, corrosion and mineral buildup on the element, achieving better performance and low maintenance.

3 Seconds That Is Hot, Really Thermostat Without Waiting,Safe and Intelligent, No Water Flow Stops Heating

0.1 Second Automatic Power-off When Leakage,It Heats Water As the Water Passes thru the Unit, Instant Heating, so You Can Use the Hot Water As You like

6500w Output Tankless Electric Water Heater Eliminates Long Time Waiting

★【Excellent Material】This tankless water heater is made of a high-quality ABS shell and cast aluminum heating package, which will not rust in long-term use and will not affect the water quality

★【Fast Heating】This tankless water heater applies a 5.5KW heating system, which provides instant and endless hot water from 30-55℃ (86-131℉) without waiting for preheating, bringing you a perfect experience of comfort and ease.

★【Easy Control】 It is equipped with a touches control panel and a LED display. You can freely adjust the temperature between 30-55℃ according to the situation through the easy-to-use touch screen