20 Best electric instant water heater

An electric instant water heater is a good choice for anyone who wants instant hot water, even on a budget. Electric instant water heaters utilize a lower energy output than storage water heaters and a lower temperature than tankless heaters. These models can heat a whole house very quickly, and usually for more than its intended use, depending on the model. They are also good for small spaces. Electric instant geyser models are the best option of small geysers, simply because you get instant hot water without needing to wait for it to heat up.

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Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
  • CONVENIENT HOT WATER HEATER: 2.5 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 10.75 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
Instant Electric Tankless Hot Water Heater 110V 3800W Mini Shower Kitchen Bath for Home Kitchen Use
  • 【Instant Hot Water】:3000W rated power 50Hz frequency can provide you hot water range from 35-45℃ , get instant endless hot water easily , As soon as you turn on the tap,you just need to relax and wait for the hot water to come out
  • 【Lightweight Safety Design】: Mini size Approx. 13.5 x 6 x 16.5cm/ 5.31 x 2.36 x 6.59" and lightweight design for your home use. It can bring instant hot water for you at home when washing food or vegetable in kitchen
  • 【Energy Saving】:Compact and light weight structure with extraordinary energy saving technology. This electric water heater are designed with advanced combustion technology to decrease gas consumption and burning noise. Save more when using our tankless water heater
  • 【Safety Protection】: Leakage protection, IPX4 waterproof, Dry heating protection, Water-electricity isolation, Auto power-off at inactive state, Over-temperature automatic power-off
  • 【Worry Free Purchase】: US STOCK, delivery in 3-5 working day. We provide high quality products and great after sales customer service,customers could reach us for any problems and we will reply in 24 hours to solve your problem
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EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
  • Lifetime warranty
  • Save up to 60-percent on your water heating cost with an ECOSMART electric tankless water heater
  • Never run out of hot water with an ECOSMART tankless water heater
  • Patented Self Modulating Technology and design
  • ECOSMART tankless water heaters are 99.8-percent energy efficient.Uniform Energy Factor:0.98
Electric Hot Water Heater 110-120V Compact Mini-Tank Storage,Small Output 2.5-3.0 Gallon, 1.5KW Kitchen Instant Under Sink Point-of-Use, RV 1 PCs 16” Long 1/2”FIP Stainless Steel Water Hoses
  • 【SAFE DURABLE & LONGEVITY】304 Made of stainless steel and never rust,Anti-leakage plug,Multiple safety protection functions protect you from the risk of scald, leakage or other injury.Premium plastic shell is corrosion resistant,This mini hot water heater is ideal for kitchen, bar, school, hospital, community and RV.
  • 【SMART INVERTER FOR ENERGY SAVING】Digital Display,Automatic heat preservation and storage of hot water, 3.0 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%,Maximum temperature167℉,The built-in smart chip heats up to the temperature you set, and automatically Insulation when heated to the specified temperature.
  • 【EASY TO USE】storage tank electric water heater with easy-to-operate knob temperature adjustment design,Easy to control warmth.Vent valve, Tee pipeline, pipes and other accessories are complete for quick installation without additional expenses or preparing time of accessories.
  • 【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,8-15 minutes to heat to your desired temperature).
  • 【COMPACT DESIGN】Can be shelf, wall or floor mounted (Water inlet and outlet upward); Dimensions: 18.0''L x12.6''W x10.2''H; 8.86lbs; 1/2″NPT NPT. 1.5 kW, 110-120 volts. One-year warranty and 24H customer service support, feel free to contact us.
Tankless Water Heater Electric 5.5kw 240V, ECOTOUCH Point-of-Use Hot Water Heater Digital Display,Electric Instant Hot Water Heater with Self-modulating,Overheating Protection,White
  • 【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.
  • 【SAFE and DURABLE】Applied with multiple protection devices, every piece goes through strict tests to ensure 100% safe. Inner water and electricity lines are designed to run separately so as to avoid leakage or harm of scale build up. Approval by ETL and qualifies for UL, you can expect outstanding performance for years to come.
  • 【POINT of USE】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. Please verify it is the right size for you: [email protected]; dimensions 11" x 7.5" x 2.35"; pipes fittings :1/2" NPT.
Immersion Heater, Electric Submersible Instant Water Heater with Metal Guard Cover Portable Bucket Heater to Heat 5 Gallons of Water in Minutes for Bathtub,Inflatable Pool
  • 【Instant Immersion Water Heater】CAMTOA submersible electric heater runs on a more powerful and energy-saving motor.It will boil 5 gallon of the water in minutes and won’t consume too much electricity. All you need to do is just put the heater in to the water then connect the 110V power supply, easy to use.
  • 【Premium & Safe】With high quality stainless-steel protect cover,submersible water heater will effectively prevent the heating element is in direct contact with people or animals and heat dissipates to the water faster by flowing through the holes in the guard.Durable and reusable.It is sturdy enough to use for many times without any damage.
  • 【Easy to Use】Immerse in water at proper level. Plug into any grounded wall outlet. Check power indicator light in plug to make sure travel immersion water heater is on. It will heat water continuously towards boiling. WARNING:1.Make sure completely immersed in water in working condition.2.Do not use it for more than 3 hours continuously! 3.Please do not plug the two heaters into the same outlet to avoid fire hazards. 4.Please take out the heater before touching the water!
  • 【Widely Use】The electric immersion heating element can be used in water, especially fit for heating water in large size container like bucket, basin, bath tub, mini inflatable swimming pool, etc.This immersion heater is handy and super lightweight, making it perfect for travels and road trips.
  • 【100% Guaranteed Customer Satisfaction】We have been working hard to provide you with the highest quality products and provide a 100% free money back guarantee. You can call us for a full refund or resend for free; so you can buy with confidence.
Camplux ME25 Mini Tank Electric Water Heater 2.5-Gallon with Cord Plug,1.5kW at 120 Volts
  • 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.
  • 43.3‘’ cord plugs into 120 volt outlet for independent installation or in-line with a large hot water source.(Max. water pressure is 150 PSI, CSA listed Temperature & Pressure relief valve included)
  • Can be shelf, wall or floor mounted ; Simply tap into the cold water line and install the water heater directly at the sink to provide hot water. Product dimension:11.75" W x 17.25" H x 10.38" D.
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Ecosmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology,White
  • The product is highly durable
  • The product is easy to use
  • Manufactured in China
  • Copper and stainless components
  • Lifetime warranty for residential use
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Electric Water Heater, KSTE 110V 3000W Mini Waterless Instant Electric Hot Water Tank for Washing/washing/dishwashing Kitchen ( Color : Black )
  • [Immediate Water Heater] This is an efficient water heater that heats water to 30-55 degrees in about 5 seconds. Applicable water pressure: 0.4-0.6Mpa.
  • [Easy to install] Mini body, easy to install in the bathroom, kitchen, bathroom under the sink, only for hand washing / face washing / dishwashing, designed for low water flow
  • [Super Display] This LCD digital temperature display has a built-in temperature sensor for the mini electric water heater, which can transmit the temperature in real time and display it on the screen to make the water temperature clear at a glance.
  • [Easy to use] Freely adjust the water temperature through the water flow, and the operation is simple.
  • [Ultra-safety] The heater is safe, saves electricity, saves water, has no pollution, and has no exhaust gas.
Thermoflow 3.5KW Mini Tankless Water Heater Electric, Elex3.5 Point of Use On Demand Instant Hot Water Heater for Sink Wash Only Wall Mounted, CSA Certified 4.7kW at 240 Volts Wall Mounted
  • ➤ [UPGRADED] MUST HARDWIRED small Tankless water heater for single sink wash use only - Save up to 60% on your water heating cost with an Thermoflow electric tankless water heater. Avoid distribution, start-up and technical systems losses as well as circulation and storage losses.
  • ➤ ENDLESS INSTANT HOT WATER - No need to preheat before using. As soon as you open the tap, the water flows out with your desired temperature. High efficient,saving energy.
  • ➤ COMPACT DESIGN - Super compact designed, even smaller than a shoe box. Wall-mounted design for installation at the point of use, frees up floor space for more storage, easy to install into washbasin cabinet and other tight spaces!
  • ➤ EXCEPTIONALITY DURABLE - Instant hot water thanks to rapid and maintenance-free bare wire heating systems. High quality alloy bare heating element has good corrode resistance and acid-resisting performance, with longer lifespan, instantaneous heating efficiency up to 99%.
  • ➤ NOTES - Please verify that this model is the right size for your hot water needs and electrical requirements before purchase & installation. Dimensions: 7.4" x 5.4" x 3.4"; Weight: 3lbs; Pipes fittings: 1/2”NPT, Electrical requirements: 3.5kW at 208 volts or 4.7kW at 240 volts, Nominal pressure: 150PSI. Nominal current: 25A. Required breakers: 1x 2-POLE 25A. Required wire: 1 x 12AWG . ( Breakers and wire are NOT included )
thermomate Mini Tank Electric Water Heater ES400 4 Gallons Point of Use Water Heater for Instant Hot Water Under Kitchen Sink 120V 1440W
  • No More Wait for Hot Water - Point of use 4 gallons mini tank water heater provides instant hot water where you need it with fast recovery, reducing standby loss. Thermal efficiency up to 99%
  • Easy Installations - Dimensions 14.5"W x 14.5"H x 12.9"D compact design, can be wall or floor mounted under sink / counter, plug into a standard 120V outlet, no special wiring required. Nominal current 12amps
  • Adjustable Temperature - Thermostat with 3 temperature level settings, range from 50°F to 149°F with high temperature limit protection, also a freeze mode to prevent tank from freezing
  • UL Certified & Durable - Enamel Coating Glass-lined tank for great insulation and preventing leaking, CASH USA made Temperature & Pressure Relief valve included, UL certified ensuring a safe long service life
  • Specifications and Warranty - Dimensions: 14.5"H x 14.5"W x 12.9"D; Weight:19.8lbs; Water connections: 1/2" NPT, Electrical requirements: 1.44 kW at 120 volts, plug-in connection with 2 feet power cord; Max water pressure:150PSI; Nominal current: 12A. 3-year Limited Warranty for the tank, 1-year warranty for parts and 24hours customer service
Tankless Electric Hot Water Heater 220/240V under sink Kitchen Household, Small Compact Instant No Standby Losses,Hot Water Output of 1.8 GPM,2 PCs 16” Long 1/2”FIP Copper Head Hose(White 7KW) (White)
  • 【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 and bathroom( meet bathing needs except extremely cold winter such as 28℉).
  • 【SMART INVERTER FOR ENERGY SAVING】The hot water heater built-in smart chip to scientifically calculate the minimum required power based on the water flow and temperature thus costing less energy and money. Save up to 70%. The water flow rate and temp is stable under chip's control.
  • 【SAFE DURABLE & LONGEVITY】Multiple safety protection functions protect you from the risk of scald, leakage or other injury. Premium tempered glass shell is corrosion resistant, high-grade and easy to wipe. This mini hot water heater is ideal for kitchen, bathroom, bar, school, hospital, community and hair salon.
  • 【EASY TO USE】 The electric tankless water heater comes with digital display & touch control panel for visual setting. Shower head, water valve, pipes and other accessories are complete for quick installation without additional expenses or preparing time of accessories.
  • 【COMPACT & POINT-OF-USE】It is surprised that this electric hot water heater can be installed 360°(no matter mounted horizontally, vertically & obliquely). Dimensions: 7.4″L x2.5″W x11.0″H; 5.13lbs; 1/2″NPT NPT. 7.0 kW, 220-240 volts. One-year warranty and 24H customer service support, feel free to contact us.
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Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater, [email protected]
  • Can provide hot water for one sink at 0.5 GPM in warmer climates
  • Requires 1 x 30 amp breaker and 10 AWG wire
  • For one sink at 0.5 GPM in colder climates the POU 6 is recommended
  • Amperage Draw 29 amp. kW - 3.5 kW
  • Connection Fittings 1/2" NPT
Tankless Electric Water Heater, 110V 3000W Mini Instant Thermostatic Hot Water Heater for Bathroom Kitchen Washing Faucet Sin
  • 【Thermostatic Water Heater】- The high efficient water heater for the application of changing the cold water into hot water between 30 and 48 ℃ (86-118°F) and it will meet your various needs such as used in kitchen, bath room. Freely adjust water temperature by water flow, simple operation.
  • 【Premium Material】- This Thermostatic water heater is made of high quality stainless steel, sturdy construction, corrosion resistance, rustproof and long service life. Mini design, it is durable, elegant and smart. Mini body, Easy to install under the bathroom or kitchen sink for washing dishes, food, clothes, faces and other functions.
  • 【Safe Protection】- Multiple safety protection measures such as hydroelectric isolation protection, anti-dry protection and enclosure insulation protection. Built-in leakage protection device. Automatically power off without water. Over-temperature automatic power-off, automatic power-off when not working.
  • 【Warm NOTE】- 1.The water heater need a circuit breaker more than 32 amps; the outlet water temperature won't very hot because the power is just 3KW, so it can't be used to bath, it can be use to wash hand or use in kitchen; 2.Freely adjust water temperature by water flow; 3.Please note this item should get the water first and then link the electricity when installing.
  • 【LCD Digital Display】- The temperature sensor transmits the temperature in real time, and the LCD display can directly display the water temperature.
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Ecosmart ECO MINI 2.5 2.5-Gallon 120V Electric Mini Tank Water Heater
  • Sleek and compact design with digital output temperature display
  • ECOSMART tankless water heaters are 99.8-percent energy efficient
  • Manufactured in United States
  • 12 A
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon (ES8) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
  • CONVENIENT HOT WATER HEATER: 7 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 17.5 W x 17.5 H x 14.5 D Inches
  • INSTALLED VERTICALLY OR HORIZONTALLY: This larger model can be mounted vertically (7 gal. of water supply) or horizontally (5.1 gal. of water supply)- vertical orientation is installed with the cold and hot lines on top of the unit
  • RELIABLE WATER SOURCE: Easily hard-wire the 7-gallon model to provide the on-demand reliable water source your home or office needs
  • IMPORTANT INFORMATION: Heating capacity of 1440 watts and a temperature range of 65-145°F max. Operating pressure-150 psi. Water fittings-3/4 inch Male NPT. Electrical requirements (Amp 12A/Volts 120)
  • EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included for vertical orientation only); simply tap into the cold water line and install the water heater directly at the sink to provide hot water
Camplux Electric Tankless Water Heater 18 KW Household Instant Water Heater, Digital Display and Remote Controller, 240V, White
  • SMART & CONSIDERED DESIGN - The point of use tankless water heater design with touch control & digital display, save space, smart and easy to set temperature. Comes with remote smart controller, very convenient even install under sink.
  • RELIABLE AND DURABLE- The 18kW tankless water heater comes with multiple protection. NFS approved, offer lead-free water. ETL safety certified, leakage and overheat protection device to ensure your safety. Stainless steel component for high efficiency and durability.
  • INSTANT ENDLESS HOT WATER - Enjoy instant and endless hot water! The on demand tankless water heater rated power up to 61,500 BTU. Easy to get water between 86°F - 125°F.
  • MINIMUM ACTIVATION WATER FLOW - Camplux electric tankless water heaters just need 0.85 GPM water flow for activation. No need to waiting and pre-heating. Get hot water in seconds.
  • COMPACT DESIGN & MULTI-ANGLED MOUNTING - The compact size electric water heater requires a connection of 2* 50A 2 poles circuit breaker. Install close to outlet for energy saving. Can be mounted Multi-angled, ideal for kitchen, school, hospital and hair salon. Please make sure it is the right size for you: 18kW at 240V, product dimensions 15.15" x 10.23" x 3.66", water pipes fitting: 3/4" NPT male.
Ariston Andris 4 Gallon 6 Year 120-Volt Corded Point of Use Mini-Tank Electric Water Heater
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Ariston Andris 4 Gallon 6 Year 120-Volt Corded Point of Use Mini-Tank Electric Water Heater
  • EASILY ACCESSIBLE HOT WATER: Compact designed 4 gallon mini tank. Provides instant hot water at point of use. 6-year limited warranty on tank, 2-year warranty on parts. Wall or floor mounted unit (wall brackets & rubber feet included).
  • DO IT YOURSELF INSTALLATION: 1440-Watt heating element draws 12 Amp. 65°F-161°F temperature range. Easy installation thanks to a standard 120-Volt outlet.
  • CAN FIT VIRTUALLY ANYWHERE: Dimensions (pipes included): 14.25"W x 14.25"H x 12.75"D; Water Connection: 1/2" NPT
  • ELECTRICAL CONNECTION: Plug-in; Relief Valve: Factory Installed; Recommended Circuit Breaker Size: 15A
  • QUALITY YOU CAN COUNT ON: TitanShield, exclusive technology that fully protects the tanks inner surface against corrosion. Robust environmentally safe foam insulation to increase energy efficiency. Eliminates the need for a recirculation line.
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Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater
  • Sleek and compact design with digital output temperature display
  • ECOSMART tankless water heaters are 99.8-percent energy efficient
  • Manufactured in United States
  • Pipe Fittings:3/4 inch NPT
  • Required Breaker:4 x 40 A
Tankless Water Heater Electric,ECOTOUCH 9KW 240V On Demand Water Heater Self-Modulating Instant Hot Water Heater ECO90 Black
  • 【INSTANT & SUFFICIENT HOT WATER】 Applied with 9kW heating system, the electric water heater ECO90 supplies instant, consistent and endless hot water of 116℉or higher temp shortly, no waiting for preheating nor temp fluctuations in use, perfect companion for sink and faucet.
  • 【SMART SELF Modulation】The hot water heater ECO90 adjusts power input according to flow rate and temp setting in real time, 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 99.8% saves considerable electric charge.
  • 【UPGRADED HEATING ELEMENT】The ECO90 hot water heater is applied with micro-computer control and patent heating technology. Water pipe is completely separated from electricity by cast aluminum module, which also guaranttes no"cold water sandwich" and avoids any corrosion inside pipes so as to extend service life.
  • 【SAFE AND DURABLE】Applied with multiple protection devices, every unit goes through strict tests to ensure 100% safety. Inner water and electricity lines are designed to run separately so as to avoid leakage or harm of scale build up. Approval by ETL and qualifies for UL, you can expect outstanding performance for years to come.
  • 【CONVENIENT USE】The ECO90 tankless water heater comes with digital display & touch control panel so temp setting is easy job. It's space saving, measuring: 15.8″ H x 11.1″ W x 3.1″ D. Plus it has a stylish, modern design that blends in any location. Please verify it is the right size for you: [email protected] (not 110V); pipes fittings : 1/2" NPT.

What Is An Electric Instant Water Heater?

A major advantage of an electric instant water heater is that it takes up less space. Most models fit in the corner of a room or garage. The unit is smaller than traditional tankless water heaters and sits higher. This means that you can place them more easily and in the corners of your home. You can also use these in apartments and tiny spaces, as they can fit into tight places where a tankless heater cannot. If you live in an older home, a tankless water heater may be a better option, as older homes were designed with underground tanks and pipes.

Another benefit of electric instant water heaters is that they do not cost much to run, making them an economical choice. Many models are priced under $200, making them affordable for almost anyone. The fact that they use less energy makes them cost efficient. It also saves you money, as you will not have to pay for the cost of heating water for an entire day when you do not use hot water. An electric heater gives you an endless supply of hot water, so you don’t need to have another source of hot water, as long as the tank is full.

The size of an electric tankless water heater also makes them more energy efficient. In general, you will save money on your monthly electric bill if you choose a larger tank. If you have never heated your own water before, you may find that the first week or so of using your electric instant water heater may take a little longer than you would have expected. This is normal, and as your tankless water heater warms up it will begin to run faster.

If you would like to have your electric tankless heater to maintain a constant temperature, you can opt for a self-modulation heater. A self-modulation heater works on two principles – one is that it takes the same amount of time to heat up water as it does to chill it, and the other is that it runs very quietly while it is heating up water. These are much quieter than traditional tankless heaters and are better for families. Some models can actually be set to run at a single temperature with a timer variable to let you manually adjust the temperature during the day.

An electric water heater that uses electricity to operate should have an outlet near where you intend to put it. If you place it in a location where it will not get power, it will be ineffective. Some models may have to be plugged into an existing outlet to work. Make sure that you read the instructions carefully and do not use an outlet that is already in use. In addition, you want to ensure that there is at least one non-flammable outlet near where you plan to put your instant hot shower.

The best use for your electric instant water heater is when it is not in use. Let the unit cool down completely before turning it on again. Wait at least ten minutes before turning it back on to ensure that any residual electricity is absorbed by the hot water before it is used. Use this time to conduct a standard inspection of the electrical components of the unit. You will most likely find that all of the connections are OK and working.

If there is one area of concern with your heater that you can help with, it is the ability of the pump to control the hot water temperature that it pumps out of the unit. Pumps that are improperly installed or improperly maintained will often prevent the pump from doing its job to regulate the water temperature. It is very important that you keep a close eye on the pump so that it does not get backed up with dirty water and cause the entire system to malfunction.