A water heater rating is a measure of the efficiency of a water heating system. It is used to guide consumers in selecting an appropriate water heater for their needs. Water heaters are rated based on several factors, including energy efficiency, warranty, safety, durability, and performance. The ratings are based on the same standards used by research and testing organizations, such as the Department of Energy and the Environmental Protection Agency. Water heaters with higher ratings are generally more efficient and cost-effective. When shopping for a water heater, be sure to look for a model with a high rating to ensure that you are getting the best value for your money.
Top 10 Favorites & Best Water Heaters Ratings, Expert-Approved Choices
1#. HAIYEATBNB Tankless Water Heater Electric 110v，5.5kw On Demand Water Heater Under Sink With Remote Control
Features
Instant Hot Water: Experience the convenience of instant hot water with our Tankless Water Heater Electric 110v. Say goodbye to waiting for the water to warm up! This compact and powerful unit delivers hot water on demand, providing a quick and efficient solution for your daily needs.
Space-Saving Design: Designed with American living habits in mind, this tankless water heater is perfect for maximizing space in your home. With its compact size, it can be easily installed under the sink, freeing up valuable floor space in your bathroom. Enjoy hot water whenever you need it, without sacrificing precious square footage.
Energy Efficient: As energy conservation is a priority for many American users, our tankless water heater electric is designed with energy efficiency in mind. The 5.5kw power rating ensures optimal performance while consuming minimal electricity, helping you reduce your energy bills and environmental footprint.
Convenience: With the included remote control, operating and adjusting the water heater has never been easier. From the comfort of your couch or bed, you can effortlessly turn the unit on/off, adjust the temperature, and customize the settings to suit your preferences. Enjoy the luxury of controlling your hot water without leaving your seat.
Installation Instructions: The wire requires 6mm ² (9AWG), circuit breaker ≥ 60AMP, thread size: 1/2 “NPT,please contact a license electric person to help you complete this project.
2#. FMATOZ Mini Electric Tankless Water Heater 4000W 110V Constant Temperature Instant Hot Water Heater with Remote Control Digital Display On Demand Hot Water Heater for Home Kitchen Indoor
Features
INSTANT HOT WATER HEATER – Applied with 5500W heating system, the electric tankless water heater supplies instant hot water, 3 seconds to get hot water without preheating. Instant consistent and endless hot water of the maximum temperature reach to 55℃/131℉. It is perfect companion for sinks, bringing you perfect experience of comfort and relaxing.
REMOTE CONTROL OR TOUCH SCREEN – Ultra slim and smooth appearance design, beautiful and elegant. The temperature can be adjusted by remote control and touch control, which is more convenient to use, can avoid wet hands to adjust, and is safer; constant temperature water outlet three-level power adjustment, bid farewell to cold and hot
SAVE SPACE AND ENERGY – Compact design, our tankless Hot Water Heater is only the size of a small suitcase, and the wall-mount design frees up valuable floor space within your home. And 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.
EASY TO INSTALL – The home water heater has a mini body, easy to install in the bathroom, kitchen, and under the sink.Standard 1/2 interface(inflow or outflow), can be directly connected to household conventional hose connectors.because the power of water heater is high, the rated current is about 30 amp. The maximum load of the general home plug socket only provides 16amp （3000W）Can’t load the power consumption of water heater, so it is not equipped with a plug.It is necessary to use the control line access to the connector that is greater than or equal to 30 amp contacts as the main gate to provide sufficient power and ensure safety
SAFE TO USE – With high temp protection, dry heating protection, and electrical leakage protection you can rest easily knowing you have safe, on-demand hot water to use on your schedule. The electric and fluid systems are completely separated to prevent electric leakage and water pipe corrosion.
3#. Camplux 2.64 GPM Residential Indoor Tankless Water Heater,On-Demand Instant Water Heater with Fahrenheit Digital Display, Liquefied Propane Gas Water Heater for Small Homes, Apartments Use, Black
Features
Compact Design,Saving Energy-The compact size – 12.8″(L)*5.91″(W)*20.28″(H) tankless water heater saves more space than traditional tanks.Trendy and modern design with fahrenheit digital temperature display.Eco and Full gas switch for energy saving and get ideal hot water temperature.
On-Demand Tankless Water Heater-Camplux high efficiency 2.64 GPM propane gas tankless water heater delivers 2.64 gallons per minute of on-demand endless hot water ensures instant hot water for any small homes, cabins or apartments.
Safety Features-Flame-out protection, anti-freezing protection(manual drainage needed),over-heating protection, air flow pressure switch protection to ensure the safety. Safe electronic ignition system, plugs into standard 120V electrical outlet with UL-listed cord.
Easy Installation -The propane water heater uses standard 1/2″ NPT water fitting and gas inlet. Comes with 2″ horizontal vent pipe,ensures efficient power ventilation. Minimum activation rate: 0.65 GPM; Maximum input rating: 68,000 BTU; Water connection location/size: Bottom/0.5-inch NPT. You will need a gas regulator ( Camplux model KR-106A )＆1 pc 5/8″ NPT male to 1/2″ BSP female gas connector adapter if you want to hook this water heater up to a propane tank.
Considerate Customer Service- Here at Camplux, customer service is everything! We offer 24 shift hours customer service make the customer experience easy and fast through our live chat, phone support & our online helpdesk. Have a question? Give us a call at (844) 538-7475.
4#. Airthereal Electric Tankless Water Heater, 9kW, 240Volts – Endless On-Demand Hot Water – Self Modulates to Save Energy Use – for Sink and Faucet, Evening Tide series
Features
☼ 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.
☼ Important Note: In order to install 9kW Electric Tankless Water Heater it would requires 240 Voltage, 40 AMP Circuit Breaker Size. Please check to confirm that your breaker panel meet these specifications.
☼ Safe To Use: With high temp protection, dry heating protection, and electrical leakage protection you can rest easily knowing you have safe, on-demand hot water to use on your schedule. The electric and fluid systems are completely separated to prevent electric leakage and water pipe corrosion.
5#. Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) – Eliminate Time for Hot Water – Shelf, Wall or Floor Mounted
Features
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. Mini-tank water heaters are the perfect solution for a variety of applications such as small homes, garages, offices, in-law suites and anywhere you need hot water produced at the point-of-use.
6#. EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
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
7#. GE APPLIANCES Point of Use Water Heater | Electric Water Heater with Adjustable Thermostat & Drain Valve | 10 Gallon | 120 Volt | Stainless Steel, Gray (GE10P08BAR)
Features
POINT OF USE WATER HEATER – Installs on-location for hot water where you need it
COMPACT DESIGN – Ideal in limited spaces like kitchens, bathrooms, laundry rooms, cabins, RVs, garages, sheds, etc
EASY INSTALLATION – Uses standard 3/4-in NPT water connections and connects into any 120-Volt supply for simple installation
HOT WATER BOOSTER – Works as a standalone unit, or inline with another water heater to boost long pipe runs or washing machines
ADJUSTABLE THERMOSTAT – Easily change temperatures to your desired settings
8#. EWH-01 Electric Water Heater Tune-Up Kit, Includes Two Water Heater Thermostat, Two Water Heater Elements – 4500W 240V (3500W@208V), Universal Type Thermostat as Water Heater Replacement Parts
Features
【ONE YEAR WARRANTY】Z Turn-up Kit Includes (2) 4500W 240V COPPER Water Heater Element, Insert Length: 13-9/16″. 3500W@208V
【ONE YEAR WARRANTY】Includes (1) Upper Water Heater Thermostat, (1) Lower Water Heater Thermostat, 120V ~ 480V
【Interchangeable】Therm-O-Disc Type Thermostat, Can interchange with APCOM type.
【More Durable】Extra Longer Life of Heating Element with Chromed Coating on the Heating Area
【Versatile Fits】The Tune-up Kits in Plumber’s pack Fits Most Water Heaters with Dual Elements – Rheem, A.O Smith, Whirlpool, GE, Richmond, Ruud, BRADFORD WHITE; CRAFTMASTER; GENERAL ELECTRIC; GS WOOD; KENMORE; LOCHINVAR; RELIANCE; RICHMOND; STATE; MOR-FLO; APCOM etc
9#. Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon (ES8) – Eliminate Time for Hot Water – Shelf, Wall or Floor Mounted
Features
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
10#. Stiebel Eltron 233219 2.5 gallon, 1300W, 120V SHC 2.5 Mini-Tank Electric Water Heater
Features
Plugs into standard 120 volt outlet
T and P valve included
Wall-mounted with included bracket
Glass-lined tank and fast recovery
6-Year warranty on tank
