Top 5 Best Water Heaters: Editor Recommended

The 10 Best Water Heaters Reviews:

1. Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon

Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon

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

Highlighted Features:

  • 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
  • This electric water heater is easy to maintain and has premium glass-lined material for a long service life. (Amps 12A, Volts (VAC) 120)
  • 36-37″ cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source
  •  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)

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2. Ecosmart ECO Electric Tankless Water Heater,

Ecosmart ECO Electric Tankless Water Heater

Configured for cold climates or high flow rates. Well suited where incoming water temperature can drop below 45 F. For use in more demanding water usage applications. Self modulating flow sensor technology regulates the amount of energy required to heat the water needed.

Digital temperature display showing the outlet water temperature setting. Uses (3) 9 KW standard Emerson electric heating elements with brass tops to prevent electrolysis. Copper heat exchanger. Automatic resettable thermostat. (3) 40 DP breakers required. 112A draw.

Required wire: 3 sets 8 AWG. Pipe fitting: 3/4” NPT. Energy efficiency: 99.8%. UL and CSA certified.Weight: 11 lb. It can provide between 2.7 and 6.5 gallons-per-minute depending on the inlet water temperature.

Highlighted Features:

  • 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
  • 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 17 x 17 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. Save up to 50% in water heating costs according to the Department of Energy
  • EcoSmart ECO 27 Sizing; 27-kilowatt tankless electric water heater ideal for providing hot water for whole home applications; provides between 2.7 and 6.5 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution
  • Warranty and Certifications; Limited Lifetime Warranty on electronics, exchanger and element; UL-499 certified; ETL Listed
  • Required Breaker Quantity: Three 40 Amp Double Pole
  • Recommended Electrical Panel: 200 Amps

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3. Rheem RTEX-18 18kW 240V Electric Tankless Water Heater

Rheem RTEX-18 18kW 240V Electric Tankless Water Heater

Rheem 18kW 240V Tankless Electric Water Heater

Highlighted Features:

  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Most advanced self-modulation, adjust power to meet hot water demand
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Simple installation – bottom 3/4 inch NPT water connections
  • Threaded for easy replacement, simple installation, digital temperature display

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4. EcoSmart ECO 11 Electric Tankless Water Heater

EcoSmart ECO 11 Electric Tankless Water Heater

ECO 11 can be used for multiple or single applications depending on your climate. ECO 11 can provide hot water for one shower in colder climates, or two showers in warmer climates.Temperature range of 80-140°F (add in C)

This Smart Technology electric tankless water heater is configured for climates where incoming water temperature is 67 Degree F and above. This model is well suited for heating up to 2-Gallon per minute, which is the equivalent of one shower head (with a 1.5 gpm flow) and one sink with a low inlet water temperature of 67 Degree F.

Digital Temperature Control allows you to set your temperature in increments of 1 Degree. This model can also be used in colder climates as a Point of Use for a sink or other low flow application. Prior to purchase and installation please verify this model is the rights size for your hot water needs and electrical requirements.

Highlighted Features:

  • 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
  • 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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5. Stiebel Eltron 235089 SHC 6 6 Gallon Water Heater

Stiebel Eltron 235089 SHC 6 6 Gallon Water Heater

Stiebel Eltron 235089 Model SHC 6 Mini-Tank Electric Water Heater, 120 Volts, 1300 Watts, 11.3A, 6.0 Gallon, 1300W, Singe Phase, 45 Minutes Recovery Time, 150 psi/10 bar Maximum Operating Pressure

An SHC mini-tank frees up precious space while providing plenty of hot water for hand washing or kitchen applications. Why store 30 or more gallons of hot water when 6, 4, or even 2.5 gallons are sufficient? With its flat back and included bracket an SHC easily mounts right under or near the sink.

Once filled with water it simply plugs into a 120 V outlet. With only an 11 amp current draw, no special wiring is required. Lightweight and compact, the SHC saves space, quickly provides hot water right where it is needed.

Plumbed with cold water and used as a stand-alone supply of hot water, or plumbed with hot water from a remote tank to minimize delays, an SHC always delivers hot water when needed. By putting hot water right where it is used, pipe runs are minimized and water and energy use reduced.

The smaller tank coupled with superb insulation reduces stand-by losses especially when compared with larger tank-type water heaters.

Highlighted Features:

  • The SHC 6 gallon mini-tank 120 V
  • Manufacturer ‎Standard Plumbing Supply
  • Product Dimensions 15 x 15 x 20 inches

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6. Marey GA10LP Power 10L 3.1 GPM Propane Gas Tankless Water Heater

Marey GA10LP Power 10L 3.1 GPM Propane Gas Tankless Water Heater

MAREY GA10LP Indoor Propane Gas Tankless Water Heater can provide up to 2. 7 Gal. per minute for a perfect shower at 115°F output water temperature. It is also called water heater on demand, because it heats water only when needed, saving energy.

It is designed in the USA and it’s perfect to supply endless hot water for up to 2 or 3 points of use simultaneously (for a variety of residential hot-water applications). Its compact design saves space and is easy to install: you will only need 2-D cell battery for the ignition and a venting (not included in the box). MAREY has been on the water heating business since 1955, bringing tradition and innovation together.

Highlighted Features:

  • This unit is flow activate
  • Save up to 60% on electricity bills for water heating
  • Compact design saves space and is easy to install almost anywhere
  • No electrical connection is required so it’s perfect alternative for those homes experiencing frequent power outages
  • Unlimited hot water whenever is needed
  • Provide endless hot water on demand and only as needed
  • Allows water temperature to be controlled

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7. Immersion Electric Water Heater, Submersible Hot Water Warmer

Immersion Electric Water Heater, Submersible Hot Water Warmer

Include: water heater x 1, steel wire ball x 1, temperature tester x 1, matte paper x 1 The heater is made of high-quality 304 stainless steel and fire-resistant fiber plastic materials, which will not rust after long-term use, and prevent serious burns from touching the heating tube. The fire-resistant plastic is safe and not easy to melt.

Immersion heaters is suitable for rapid heating of water in different small-capacity containers such as buckets, basins, tubs, bathtubs, kids inflatable swimming pools, baby mini pool, kiddie blow up pool, small above ground pools etc. The water heater is small in size and easy to carry. It can quickly provide you with hot water during camping and RV travel.

Highlighted Features:

  • 1500W high power immersion electric heater makes the water heating more efficient. It can heat 5 gallons of water to boiling in a few minutes.
  • The immersion electric heater has a 304 stainless steel cover to prevent the heating element from directly contacting people and causing burns.The ring heating tube is much longer than other products, which means that the surface load of the tube is relatively small, so it is safer and more durable.
  •  completely immerse the immersion heater in water, and then connect the 120V power supply. After heating for a period of time, take out the free thermometer and put the probe into the water to test the water temperature.
  • water heater x 1, steel wire ball x 1, thermometer x 1, matte paper x 1, If you have any questions, please feel free to contact our email for help. NOTE: The water heater cannot be used continuously for more than 3 hours.

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8. Camplux Tankless Water Heater Electric

Camplux Tankless Water Heater Electric

The instant hot water heater applied a 3.5kW heating system, the electric tankless water heater offers you instant, endless, and consistent temperature hot water in 24 hours of 7 days.

This tankless water heater electric 110 volts with compact size and sleek design can be mounted at any angle, perfect for kitchen, school, hospital, and hair salon sinks.

The hot water heater electric will only draw the amount of electricity required to produce the hot water, no need for pre-heating to save energy and heat up in seconds. Multiple protection to ensure your safety.

The under sink water heater is leakage proof and over-heat protection will start when the temperature reaches 131°F. Smart control, remember your favorite temperature, and convertible freely for Fahrenheit and Celsius.

The compact size instant electric water heater requires a connection of 1* 40A circuit breaker & 8 AWG wire. Install close to outlet for energy saving. Can be mounted Multi-angled, ideal for kitchen, wet bars, school, hospital, hair salon and boats. Please make sure it is the right size for you: 3.5kW at 120V, product dimensions 7.8″ x 6.3″ x 3.9″, water pipes fitting: 1/2″ NPT male

Highlighted Features:

  • Small water heater designed with smart touch control & LED display, mini size, perfect for under sink installation. The minimum water flow for activation just need 0.4 GPM (Only for one sink)
  • The 3.5kW tankless water heater comes with 5 protections. NFS approved, offer lead-free water. ETL safety certified, leakage and overheat protection device to ensure your safety. Stainless steel and copper component for high efficiency and durability
  • Consistent Hot Water -On demand water heater only heats the water when you need it and no waiting for preheat.The temperature rise of 1.0 GPM is 55°F. Easy to get hot water between 85°F – 131°F in seconds. Enjoy instant and endless hot water
  • Rotatable LED Display: 120V tankless water heater features an upgrade rotatable digital temperature display and touch control panel, show you the easy reading output water temperature at real-time and setting ideal temperature just by finger. Note: This mini water heater is only suitable for sink use, not for bathing

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9. JESTOP Anti-scalding Bucket Heater, Electric Immersion Water Heater

JESTOP Anti-scalding Bucket Heater, Electric Immersion Water Heater

Please do not use it continuously for more than 3 hours!! Please be sure that water in containers submerges the heater!!! It’s forbidden that your body contacts water before unplug the plug! Don’t use extension cord. don’t plug 2 heaters on the same outlet!

JESTOP Immersion Heater let your water heat up in just a few minutes. All you have to do is put the heater in the water and connect it to a 120V power supply. Equipped with a Fahrenheit water temperature gauge, let the water temperature reach the temperature you want to end the work of the heater at any time.

Highlighted Features:

  • The instant hot water heater is suitable for rapid heats water in large size container like bucket, basin, bath tub, mini inflatable swimming pool, etc. The Package includes 1 x digital thermometer, 1 x stainless steel cleaning ball, 1x water heater. It is deal gift for your friends and family during winter.
  • The pool heater with stainless steel protective guard can effectively prevent the heating element from directly contacting the human body, which is more safer. Heat dissipates to the water faster by flowing through the holes in the guard. It can boil 5 gallons of water in a few minutes. d fire. Please use it strictly according to the instructions! !
  • Fully submerge the heater in the water and connect it to a 120V power supply. Check power indicator light to make sure immersion water heater is working then it will heat water continuously. JESTOP heater is perfect for any cold weather application.
  • JESTOP Heater is small and portable. You can easy to carry it to heat your farm animals’ water, your tiling water on the job site, car wash bucket, pail of bath water in a tiny home or camper, window washing water and more!
  • The heater must be completely immersed in water during working! Please take out the heater before touching the water! Please do not use it continuously for more than 3 hours! Please do not plug the two water heaters into the same socket to avoid fire.

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10. Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater

Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater

This electric tankless water heater is a true Point of Use Model because it is specifically designed for under the sink, single applications with a maximum flow rate of 0.5-Gallon per minute (gpm) and includes a 0.5 gpm sink aerator. Its compact size allows for under the sink installations.

The Point of Use models are ideal for: Wet Bars, Strip Malls, Doctor’s Office, Boats, Recreational Vehicles (RVs), Bathroom Sinks. Prior to purchase and installation please verify this model is the rights size for your hot water needs and electrical requirements.

Highlighted Features:

  • 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
  • Max temperature rise @ .5 GMP is 47.8°F Max temperature rise @ 1GPM is 23.9°F Max temperature rise @ 1.5 GPM is 15.9°F

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