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

Visit our site to find reviews on water heater review consumer reports. We have the top best water heater review consumer reports comparison 2025 and you can make an informed decision!

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
Bestseller No. 3
Fisoceny 4 Gallon Mini Tank Water Heater Under Sink Instant Hot Water,1500w 110V 120V Small Hot Water Heater,Pressure Release Valve RV Kitchen,Shelf,Wall Floor Mounted White
  • Easy to install and Widely Use:Fisoceny 4 gallon 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:Fisoceny 110v 4 gallon water heater 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.Good quality and applicability ensure that your 4 gallon waterer heater can be used normally all year round
  • 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 4 gallon 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. 5
Fisoceny 2.5 Gallon Water Heater,Under Sink Mini Tank Water Heaters 110V 120V Small Hot Water Heaters,1500W Rv Compact Mini Water Heater Kitchen Mini Water Heater 1/2" NPT White
  • Easy to install and widely use:fisoceny 110v mni water heater is suitable for 1/2" npt water hose connection,plug-in connection with ul certificated power cord for 110v/120v ac power supply included,and can be installed easily.2.5 Gallon under sink intant water heater with 11.4"L x 11.4"H x 11"w compact design,saving more space and can be under sink,counter,cabinet,shelves,wall,or floor-mounted (bracket included).Can be widely used in kitchen,offices,rs,and hair salons,etc
  • No more wait for hot water:Fisoceny 110v instant water heater with a heating efficiency of up to 90%,you can get hot water within 6 minutes.even in the cold winter, there is no need to wait for a long time
  • Durable and long service:the internal materials of instant hot water heater 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.Integrated stainless steel tank body,all for your safety and extended service life
  • Energy efficient and perfect insulation:fisoceny under sink instant water heater have excellent energy efficiency level.Our small water heater with fast heating rate,higher energy efficiency,providing on demand hot water.Instant hot water is always at point of use.We have upgraded polyurethane cfc-free filling layer extend the insulation time to 48 hours
  • User friendly 2.5 Gallon water heater:our mini tank water heater supports mechanical knob to adjust temperature, with a range from 86 to 149 ℉,it is easy to operate.We have equipped you with 2pcs connecting water hoses, 1pc pressure relief valve, and a transparent water guide pipe. You don't need to purchase any other accessories to easily install and use it
SaleBestseller No. 6
Suburban Advantage RV Tank Water Heater SW10DE - 10 gallon Porcelain Lined Steel Tank with Direct Spark Ignition (DSI) and Incoloy Electric Element (5243A)
  • DURABLE CONSTRUCTION: Engineered with a porcelain-lined steel tank, the Suburban 10 Gallon Tank Water Heater is designed for durability, mimicking the longevity of residential tank water heaters, ensuring years of reliable hot water.
  • ADVANCED CORROSION PROTECTION: Equip with a replaceable anode rod and this water heater provides enhanced protection against tank corrosion. The anode rod also doubles as a drain, simplifying maintenance and extending the lifespan of the unit.
  • FLEXIBLE POWER OPTIONS: Featuring an optional electric element, this allows you to utilize campsite or generator power for heating water, offering unmatched versatility.
  • EXCLUSIVE HEAT TRANSFER TECHNOLOGY: Suburban's exclusive flue tube design slows the combustion process, optimizing heat transfer and ensuring the water in the tank heats efficiently, saving energy and providing hot water faster.
  • SPECIFICATIONS: Product Dimensions - 16.22" x 16.22" x 20.50"; Cutout Dimensions - 16.38" x 16.38" x 20.50". BTU/h - 12,000. Optional electric element input - 1,440. Recovery rate electric only (Gallons/Hour) - 6.1; Recovery rate gas only (Gallons/Hour) - 10.1. Backed by a 2-year limited warranty and a 3-year tank limited warranty.
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
SaleBestseller No. 8
CAMPLUX Tank Water Heater Electric,10 Gallon Point of Use Hot Water Heater (ME100B) 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. 10
Tankless Electric Water Heater, ECOTOUCH 18kW Instant Water Heater On Demand 240V Under Sink Water Heaters 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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