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Top 10 Best Water Heater Review Consumer Reports Reviews & Comparison | Updated

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That’s why we’ve taken 48807 reviews from top experts and organized them according to our rankings for you. 

Bestseller No. 2
Rheem 6.5kW 240V Point of Use Thermostatic Tankless Electric Water Heater
  • 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 - Rheem Professional POU T tankless electric water heaters are 90% smaller than traditional tank heaters, great for point-of-use installation
  • Save Energy - only heats water when in use
SaleBestseller No. 3
Fisoceny Mini Tank Electric Water Heater Under Sink 4 Gallon Instant Hot Water Heater 110V 120V 1500w Small Water Heater,Safety Valve Compact Water Storage for Kitchen,Shelf,Rv Wall Floor Mounted
  • 【Easy to install and Widely Use】Fisoceny mini tank water heater is suitable for 1/2" NPT water hose connection, plug-in connection with 3-feet power cord for 110v/120v power supply included,and can be installed easily.4 gallons small tank water heaters with 14.2"L x 12.2"H x 13.8"W compact design,saves more space and can be under sink,shelves, wall, or floor-mounted (bracket included).Can be widely used in kitchen, office,RV, and hair salon,etc.
  • 【No More Wait for Hot Water】small water heater electric with fast recovery rate can eliminates long waits for hot waters.durable stainless steel tank and excellent insulation lining materials greatly reduce heat loss and provide constant temperature hot water in 5-10 minutes.
  • 【Durable and Long Service】The internal materials of instant hot water heater electric 110v are made of high-temperature calcined layer and enamel layer, which have corrosion resistance, rust prevention,and anti-corrosion properties.Stainless steel heating tubes and built-in magnesium rods can effectively purify water quality and extend service life.Integrated stainless steel tank body and Polyurethane CFC-free filling layer ensure the stability of the tank body and excellent insulation.
  • 【Energy Efficient and Easy to Use】FISOCENY mini tank electric water heater have excellent energy efficiency level. our water heaters with thermal efficiency up to 90%,higher energy efficiency ,Providing immediate hot water at the point of use whenever you need it.instant hot water is always on demand.saving energy and your bills.mechanical knob switch design supports temperature adjustment from 86℉ to 149℉.which is simple and practical.
  • 【Excellent Security】FISOCENY under sink tank water heaters has many safety designs hard stainless steel tank,leakproof design,insulation material,preventing overheat,pressure relief valve,longer service life,all for your safety.Of course, to prevent water leakage, we strongly recommend that customers tighten the nuts connecting the water pipe and inlet/outlet to the maximum extent possible
Bestseller No. 4
110V Tankless Water Heater Electric with Remote, 3000W On Demand Under Sink Hot Water Heater Electric 110V with LED Display - Automatic Control System - Fault Self-Test Function (3000 White)
  • Instant Thermostatic Water Heater - Tankless Water Heater Electric adopts 3000W heating system, no preheating required, rapid heating in 3 seconds, providing instant hot water. Instant, continuous, endless hot water It is the perfect companion to your sink, giving you the perfect experience of comfort and relaxation.
  • 110V~120V Remote Control Water Heater - Instantaneous electric hot water heater adopts ultra-thin and smooth appearance design, which is beautiful and elegant. The water temperature can be adjusted by remote control and touch, making it more convenient to use. Three-level power adjustment of constant temperature water outlet, say goodbye to hot and cold, the temperature can reach 55℃/131℉.
  • Save Space and Energy - Our tankless water heaters are compact and fit easily under your sink, making them perfect for every corner of your home without taking up space. The thermal efficiency of tankless electric water heaters is as high as 99%, allowing you to enjoy hot water at any time and save energy.
  • Safety Protection - Our instant electric water heater has been rigorously tested and has multiple protection functions: water and electricity isolation, IPX4 waterproof, leakage protection, dry boil protection, automatic power off under overheating and inactivity. Prevent leakage and water pipe corrosion.
  • Easy to Install - The domestic tankless water heater adopts a mini design, which is very convenient to install in the bathroom, kitchen and under the sink, etc. where it is needed in the home. Standard 1/2 connection (in or out) for direct connection to conventional household hose connectors. If you still have questions, please feel free to contact us.
Bestseller No. 5
Fisoceny Electric Mini Tank Water Heater 2.5 Gallon Under Sink White Instant Hot Water Heater,110V 120V 1.5Kw Kitchen RV Trainer Compact Storage Heaters Wall or Floor Mounted
  • 【Easy to install and Widely Use】Fisoceny mini tank water heater is suitable for 1/2" NPT water hose connection, plug-in connection with 3-feet power cord for 110v/120v power supply included,and can be installed easily.2.5 gallons small tank water heaters with 11.4"L x 11.4"H x 10.4"W compact design,saves more space and can be under sink,shelves, wall, or floor-mounted (bracket included).Can be widely used in kitchens, offices,RVs, and hair salons,etc.
  • 【No More Wait for Hot Water】small water heater electric with fast recovery rate can eliminates long waits for hot waters.durable stainless steel tank and excellent insulation lining materials greatly reduce heat loss and provide constant temperature hot water at the point of use.
  • 【Durable and Long Service】The internal materials of instant hot water heater electric 110v are made of high-temperature calcined layer and enamel layer, which have corrosion resistance, rust prevention,and anti-corrosion properties.Stainless steel heating tubes and built-in magnesium rods can effectively purify water quality and extend service life.Integrated stainless steel tank body and Polyurethane CFC-free filling layer ensure the stability of the tank body and excellent insulation.
  • 【Energy Efficient and Easy to Use】FISOCENY mini tank electric water heater have excellent energy efficiency level. our water heaters with thermal efficiency up to 90%,higher energy efficiency ,Providing immediate hot water at the point of use whenever you need it,6-minute rapid heating,instant hot water is always on demand.saving energy and your bills.mechanical knob switch design supports temperature adjustment from 86℉ to 149℉.which is simple and practical.
  • 【Excellent Quality&Warranty 】Storage tank water heaters has many safety designs hard stainless steel tank,leakproof design,insulation material,preventing overheat,pressure relief valve,longer service life,all for your safety,7x24h support is always at your service.If you have any problems, please free to contact us.
Bestseller No. 6
Chevrolet 5243A Electric Water Heater SW10DE with Direct Spark Ignition - 10 Gallon
  • Indoor switch for control and operation
  • Capacity: 10 gallons
  • Ignition Type: Direct Spark Ignition
  • Dimensions: 20-1/2" Depth, 16-7/32" Width, 16-7/32" Height
SaleBestseller No. 7
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 (5.1 gal. of water supply) or horizontally (7 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 or floor mounted. Wall mounting available in vertical orientation only (water connections on top) - bracket included. Simply tap into the cold water line and install the water heater directly at the sink to provide hot water
Bestseller No. 8
CAMPLUX Electric Hot Water Heater 10 Gallons, Tank Water Heaters Electric 120V 1500W, Easier Using with Adjustable Thermostat, Save Time, UL Listed
  • Large Capacity Design- 10 gallons of sufficient capacity to meet your home's hot water needs. Unlike other ordinary storage heaters, our electric tank water heater is equipped with advanced rapid heating technology, allowing you to enjoy the convenience of hot water in about 60 minutes. It greatly saves you time waiting for hot water
  • Save Energy & Low Consumption- Experience uninterrupted warmth with our on-demand 10-gallon water heater, equipped with 24-hour insulation. It can be adjusted between 90°F and 150°F through the built-in thermostat. Minimizing heat loss, it delivers hot water at your preferred temperature day or night
  • Save Space- Household electric water heater is an ideal choice designed for providing stored hot water or boosting applications. Its design allows for installation in places where it's impractical to lay long hot water pipes, such as under countertops, beneath cabinets, or other narrow spaces. Product dimension:14.75" W x 24.5" H
  • Long-lasting Enamel Coated Tank- Feature a robust triple-layer enameled inner liner for excellent durability and longevity. The smooth, easy-to-clean surface offers superior resistance to corrosion and abrasion, ensuring a damage-free lifespan of 3-5 years
  • 1500W Heating Power- The submerged extended heating tube efficiently transfers heat directly to water, ensuring faster and more even heating due to its larger contact surface. Achieving a reliable performance of 98% heat recovery efficiency
Bestseller No. 9
Tankless Water Heater Electric 6.5kw 240V, ECOTOUCH Point-of-Use Hot Water Heater Digital Display,Electric Instant Hot Water Heater with Self-modulating,Overheating Protection,Black
  • 【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.
  • 【Safe and Durable Water Heater】Newly updated with protection devices, every piece tankless water heater electric ECO65 goes through strict tests to ensure 100% safety. Inner water and electricity lines are specially designed to run separated so as to avoid leakage risk or scale build up. The on demand hot water heater ECO65 qualifies for ETL standard, you can expect outstanding performance for years to come.
  • 【Point of Use Water Heater】The sleek tankless water heater electric ECO65 is compact as an oatmeal box, making it possible to install any place as point of use water heater to avoid energy and water waste, ideal for kitchen sink, bar, school, hospital, community and hair salon. Please verify it is the right size for you: 6.5kW@240V(ONLY); dimensions 10.3" (W) x 15.4" (H) x 2" (D); plumbing connections :1/2" NPT.
Bestseller No. 10
Tankless Electric Water Heater, ECOTOUCH 18kW Instant Water Heater On Demand 240V Under Sink Water Heater Point of Use with ETL Certificated Self-Modulation ECO180S White
  • 【ENDLESS INSTANT HOT WATER】With a powerful 18kW heating system, the tankless electric water heater 240V supplies sufficient instant & endless hot water of 120℉ or higher in seconds, no waiting for preheating, no temperature fluctuation and never runs out of hot water during your long &comfortable shower time. Also,the instant hot water heater ECO180S is a perfect companion for kitchens, bathrooms, laundry rooms, cabins, RVs, garages, sheds, etc.
  • 【CONVENIENT to USE】The 18kW on demand hot water heater electric comes with a user-friendly touch control panel, making temperature setting such an easy job. Best of all, useful information on the screen helps you get clear understanding of working status of the tankless water heater electric 240V any time. Just set the temp you want and let the smart instant water heater do the rest effortlessly.
  • 【SAFE & DURABLE】This tankless water heater under sink is applied with multiple protections, such as over-temp protection, leakage protection, high voltage protection and dry-heating protection, rest assured, every piece of tankless hot water heater ECO180S goes through strict tests , which ensures 100% safety of you and your families. Besides, inner water and electricity lines in the water heater are designed to run separately, so you don't need to worry about leakage risk and scale build-up. And it is listed by ETL and qualified by UL, you can expect excellent performance for years to come.
  • 【ENERGY SAVING】Featured with smart self-modulation heating system, this electric tankless water heater automatically adjusts exact power input based on water flow rate and temp setting real time. For example, the electric hot water heater consumes less power when you reduce water flow, thus, you get ideal temperature without the risk of burns, ensuring the best balance between comfort and energy saving. Additionally, optimal energy efficiency of 99.8% saves up to 60% on electric charge compared to a typical huge tank water heater.
  • 【POINT of USE WATER HEATER】The white & sleek water heater ECO180S is compact and stylish, making it possible to install point of use to cut down on waiting for hot water and avoid energy waste, which is a perfect hot water solution for sink faucet and shower. Please verify it is the right size for you: 18kW @ 240V, dimensions 12 1/5" (W) x 17 1/4" (H) x 3 2/5" (D); plumbing connections :3/4" NPT. And this water heater electric 240Volt requires 2X40A Double Pole Breaker and 2X8AWG/2 wires with Grounding.

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