A new water heater purchase can be a challenging and perplexing procedure. There may be a lot more to learn about when making a decision because modern hot water heaters come with a ton of high-tech and smart features intended to help you monitor, control, and boost efficiency.
You know, when looking to buy a hot water heater, there weren’t many options available in the past. Gas and electricity were the only two options. The landscape of hot water heaters has altered due to the introduction of new technology, and more options are now available than ever. Customers might think about tankless and hybrid water heaters and gas and electric tank water heaters.
Top 3 Picks
| Best Overall A.O. Smith ENS-40 ProMax  Grab Now | Most Affordable Rheem RTEX-24  Grab Now | Most Popular (Mini-Tank) Bosch ES4 Tronic 3000T  Grab Now |
Besides, it’s an important question what brand of electric water heater is the most reliable? Three major players including AO Smith, Rheem, and Bradford White control the residential water heater market in the US. Together, AO Smith and Rheem were responsible for more than 70% of domestic water heater shipments in the US in 2020. source
In addition, Bosch Thermotechnology, Rinnai Water Heater, GE GeoSpring Water Heater, EcoSmart Tankless Water Heater, and Stiebel Eltron Water Heater are also reliable and popular brands. What is the longest-lasting water heater? A tankless water heater has a 20-year lifespan, and occasionally much longer.
On the other hand, what is the average lifespan of an electric hot water heater? The life expectancy of a water heater is between eight and twelve years, which is based on the manufacturer’s recommended service life. That varies depending on the unit’s location and design, installation quality, maintenance schedule, and water quality.
10 Best Electric Water Heaters to Save Electricity in 2023
What kind of water heater is best? You’ll be glad to know that you have better options because of federal requirements that demand water heaters be more energy-efficient if your water heater is approaching the end of its useful life and you’re thinking of replacing it before calamity occurs.
Nowadays every house has essential home appliances like counter depth refrigerators, bottom freezer refrigerators, or outdoor refrigerators, and kitchen appliances like over-the-range microwaves with exhaust fans, microwaves with toasters, microwaves with stainless steel interiors, etc. that require electricity.
So, to save energy & your money, you must go for the power efficient electric water heater, mustn’t you?
Tankless (on-demand) water heaters are even more efficient than new storage tank water heaters, which are needed to work more effectively. Because electric hot water heaters are far more environmentally friendly than their natural gas equivalents and may be eligible for tax credits or rebates, they are a terrific investment.
| Best For | Products | Go & Grab |
| Popular Choice | Bosch ES4 Tronic 3000T | Buy Now |
| Affordable | Rheem RTEX-24 | Buy Now |
| Tankless | EcoSmart ECO 27 | Buy Now |
| 20 Gallon | Reliance 6-20-SOMS K | Buy Now |
| 40 Gallon | A.O. Smith ENS-40 ProMax | Buy Now |
| 50 Gallon | Bosch Thermotechnology Tronic 5000T | Buy Now |
| Small Family (20-40 Gallon) | Reliance 6-30-EOLBS 100 | Buy Now |
| Large Family (50 Gallon Plus) | AO Smith SUN-80 | Buy Now |
| RV (Recreational Vehicle) | Camplux ME60 | Buy Now |
| Camping | Camplux AY132Max | Buy Now |
1. Bosch ES4 Tronic 3000T
Overall Score: 9 out of 10
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) – Eliminate Time for Hot Water – Shelf, Wall or Floor Mounted
Bosch ES4 Tronic 3000T is the most popular electric water heater in Amazon right now. Three small sizes of the Bosch Tronic 3000 T point-of-use electric mini-tanks are offered; they can be either wall- or floor-mounted and come with a bracket.
They can be installed in a prominent spot and are small and elegant enough to fit under a sink or even in cabinet space. When installed, they perfectly match the décor already in place. To deliver hot water, merely tap into the cold water line and install the water heater next to the sink. Excellent in a variety of settings!
Specifications
- Brand: Bosch Thermotechnology
- Capacity: 4 Gallons
- Power Source: Battery Powered
- Item Dimensions LxWxH: 13.75 x 13.5 x 13.75 inches
- Color: White
- Country of Origin: USA
- Item Weight: 17.3 pounds
- Wattage: 1440 watts
- Voltage: 120 Volts
- Material: Glass
- Item Weight: 17.3 Pounds
Features
- Comfortable hot water heater: Under your sink, a 4-gallon point-of-use mini-tank fits to give hot water exactly where you need it. 98% thermal efficiency. 13.75 inches wide by 13.75 inches high by 13.5 inches deep
- Long-lasting quality: This electric water heater includes a quality glass-lined material for long service life and is simple to maintain. (Amps: 12A, Volts: 120VAC)
- A separate installation: For independent installation or when connected to a sizable hot water source, the 36-37″ chord plugs into a 120-volt outlet.
- Fast recovery rate: Get hot water on demand for all of your needs instead of having to wait for it to heat up at the sink. (provides up to two sinks at once).
- Easily mounted: The water heater can be mounted on a shelf, a wall, or a floor (bracket provided); to deliver hot water, just connect the water heater to the cold water line at the sink.
2. Rheem RTEX-24
Overall Score: 9.5 out of 10
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
Rheem RTEX-24 is the most affordable electric water heater whose performance is so powerful. It saves energy, space, and money. This sustainable option consumes less energy than a tank-type water heater because it only heats water as needed.
Point-of-use Due to their small size, Rheem RTEX-24 tankless electric models can be installed close to a fixture, freeing up important storage space in your home (under a sink, in a bathroom, or in a closet, for example). Whole home models can be mounted on the wall in the heart of the house.
Specifications
- Brand: Rheem
- Power Source: Corded Electric
- Item Dimensions LxWxH: 18.25 x 14.5 x 3.5 inches
- Color: Gray
- Voltage: 240 Volts
- Material: Stainless Steel
- Item Weight: 17.8 Pounds
- Heat Output: 24 Kilowatts
Features
- ON/OFF dial control with a programmable digital thermometer
- Model Flow Rate: up to 5.9 GPM for RTEX-24 Bottom 3/4″ NPT water connectors Self-modulating power control 24kW
- Hot water is available when needed and is constant.
- Powerful Performance – In warm climates, our 24kW model can produce up to 5.9 gallons of hot water per minute (GPM), which is adequate for up to three simultaneous showers. Although at lower flow rates, lower kW models still offer continuous hot water.
- Energy Smart: All models with a power output of more than 6kW feature energy modulation, which means they only use as much energy as is necessary to heat the water you need.
- Point-of-use models are installed close to where you need hot water, so you can get hot water quickly.
- Optimized Operation – Each model’s front-mounted digital temperature controller makes setting the set point a breeze.
- No Venting – Tankless electric water heaters can be installed anywhere in the house because they don’t need to be vented.
3. EcoSmart ECO 27
Overall Score: 9.2 out of 10
Ecosmart ECO Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology, White
Every EcoSmart tankless electric water heater provides limitless hot water while saving you time, money, and space. It also enables you to use less water and energy overall. EcoSmart ECO 27 is one of the best tankless electric water heaters.
The EcoSmart ECO 27 is a 27 KW tankless electric water heater that is best suited for modest whole-home applications with cooler input water temperatures as well as bigger residences in warm climes. Depending on the temperature of the inflow water, it can deliver between 2.7 and 6.5 gallons per minute.
It is designed to withstand extreme cold or high flow rates. Well suited if the temperature of the entering water can dip below 45 F. for use in situations that require additional water. The quantity of energy needed to heat the required amount of water is controlled by self-modulating flow sensor technology. The exit water temperature is displayed on a digital thermometer.
Specifications
- Brand: EcoSmart
- Capacity: 3 Gallons
- Power Source: Corded Electric
- Item Dimensions LxWxH: 3.75 x 17 x 17 inches
- Color: White
- Wattage: 27 KW
- Voltage: 240 Volts
- Item Weight: 4.99 Kilograms
Features
- Unlimited on-Demand Hot Water; Consistent, never-ending hot water when you need it; Efficiency and consistency are guaranteed within one degree of the chosen temperature thanks to continuously monitor water temperature and controlled flow rates.
- Saving space; EcoSmart tankless electric water heaters can be mounted on a wall or at the point of use, and they are 90% smaller than conventional tank heaters. 17 x 17 x 3.75 inches in size
- Save energy; 99% thermal energy efficient EcoSmart tankless electric water heaters only heat water when it is needed, as opposed to tank heaters that keep the water at a constant temperature even when not in use.
- 27-kilowatt tankless electric water heater needed, perfect for providing hot water for whole-home applications, requires 3×40 AMP double pole breakers; depending on the temperature of the incoming water, produces between 2.7 and 6.5 gallons per minute; use the size guide to choose the right option.
- Limited lifetime warranty on the exchanger, element, and electronics; UL-499 certification; ETL listing.
- Users have full control over hot water thanks to digital temperature control with 1-degree increments.
Check More Popular Tankless Electric Water Heaters in 2023
The Department of Energy estimates that whole-home tankless electric water heaters can reduce water heating expenses by up to 34% or up to 50% compared to point-of-use tankless electric water heaters (DOE).
- Stiebel Eltron Tankless Water Heater
- Rheem 18kW 240V Tankless Electric Water Heater
- Rheem RTEX-24 24kW 240V Electric Tankless Water Heater
- EcoSmart ECO 11 Electric Tankless Water Heater
4. Reliance 6-20-SOMS K
Overall Score: 8.9 out of 10
Reliance 6-20-SOMS K 20GAL ELEC WATER HEATER, 20 Gallon
The size of 20-gallon water heaters is unique. They are a great option for high-demand point-of-use (POU) applications, such as bathrooms with showers, and are big enough for smaller houses that don’t need a lot of hot water.
Reliance 6-20-SOMS K is one of the best 20-gallon electric water heaters. Besides, in the USA, two more 20-gallon water heaters are popular including AO Smith EJCS-20 Residential Electric Water Heater and Rheem Performance 20-gal.
Specifications
- Brand: Reliance
- Capacity: 20 Gallons
- Power Source: Corded Electric
- Item Dimensions LxWxH: 20 x 18.8 x 33.5 inches
- Voltage: 120 Volts
- Material: Glass
- Item Weight: 68 Pounds
Features
- Series 606 1650/120V. UL certified.
- There is no dip tube because the bottom inlet negates the necessity for one. 1″ R-value foam insulation.
- The 4,500 watts/hour input of Series 606 electrics is more than enough to meet all of your hot water needs.
- The T&P valve installed at the factory meets NAECA standards for tanks with glass walls.
- For simpler installation in confined places, inlet and outlet connections are on the side. 6-year tank/parts warranty.
5. A.O. Smith ENS-40 ProMax
Overall Score: 9.5 out of 10
A.O. Smith ENS-40 ProMax Short Electric Water Heater, 40 gal
Electric water heaters of the ProMax range provide unparalleled value and quality. The whole product line complies with the Department of Energy’s energy efficiency standards and is eligible for the majority of utility rebate programs. If you consider the perfect one including the best 40-gallon electric water heater, A.O. Smith ENS-40 ProMax can be the overall best choice.
All versions come with Permaglas glass covering, a T&P relief valve that has received certification, and durable low-watt density copper heating components. With the Dynaclean dip tube, lime and sediment accumulation are reduced, ensuring years of consistent hot water. Additionally, ProMax offers a variety of installation options, such as tall, short, and lowboy models.
Specifications
- Brand: A. O. Smith
- Capacity: 40 Gallons
- Power Source: Battery Powered
- Item Dimensions LxWxH: 22 x 22 x 50 inches
- Color: Gray
- Item Weight: 124 pounds
- Wattage: 4500 watts
- Voltage: 240 Volts
Features
- Permaglas glass coating prolongs tank life and prevents corrosion in steel tanks.
- Made of durable PEX cross-linked polymer, the Dynaclean diffuser dip tube maximizes hot water production while reducing lime and sediment buildup.
- Longer than standard steel anodes, CoreGard anode rode’s aluminum core shields the tank from corrosion.
- solid, tamper-proof brass drain valve
- complies with all current National Appliance Energy Conservation Act requirements (NAECA)
6. Bosch Thermotechnology Tronic 5000T
Overall Score: 9.3 out of 10
Bosch Thermotechnology Tronic 5000T 50-Gallon Tall Electric Storage Water Heater (ES50T)
Bosch Thermotechnology Tronic 5000T is the best 50-gallon electric water heater. Have a boiler room or closet with a tall but narrow water heater? The Bosch Tronic 5000T 50-Gallon Tall Large Electric Tank, which measures 20.25″ W x 59.75″ H x 20.25″ L, is ideal for tall, shallow spaces and offers a plentiful supply of hot water for your entire household.
A 10-year tank and components limited warranty is offered with this model. One of the top manufacturers of top-notch comfort and water heating systems is Bosch Thermotechnology. Electric whole-house and point-of-use water heaters, electric heat pump mini split HVAC systems and linked control thermostats are all products offered by the company.
By providing solutions that operate as integrated systems that improve quality of life in a highly effective and ecologically sustainable way, Bosch Thermotechnology is dedicated to being Simply Smart.
Specifications
- Brand: Bosch Thermotechnology
- Capacity: 50 Gallons
- Power Source: Corded Electric
- Item Dimensions LxWxH: 20.25 x 20.25 x 59.75 inches
- Color: Gray
- Item Weight: 133.8 pounds
- Material: Plastic
- Country of Origin: Mexico
- Warranty Description: 10 years
Features
- Dimensions: 20.25″ W x 59.75″ H x 20.25″ L. APPLICATION Perfect size for a crawl area, access closet beneath the stairs, and maintenance closet. ideal for jobs involving replacement.
- Durability: For additional tank defense, two magnesium anode rods. heat trap for dielectrics. Tank made of heavy gauge steel for longer, trouble-free service. Steel tank with a glass lining to help prevent corrosion.
- 10 years Warranty for the tank and parts.
- Efficiency: HFO foam insulation increases energy efficiency and lowers fuel expenses. Energy is saved by using two heating components. components made of Incoloy for a durable unit
- Convenience: Electric hot and cold water hookups are fitted at the factory to enhance tank life. a plastic drain valve that is simple to use for maintenance. Heat traps that are pre-installed minimize heat loss. Relief valves for pressure and temperature are present. Surface-mounted thermostats that are fully automatic.
7. Reliance 6-30-EOLBS 100
Overall Score: 8.9 out of 10
Reliance Water Heater CO 6-30-EOLBS 100 30-gallon Electric Water Heater
Reliance 6-30-EOLBS 100 is the best electric water heater for small to medium size family. If you have only 2 members in your family, then you can go for RHEEM/RICHMOND 6EP15-1. This electric water heater’s capacity is 15 gallons. Besides, Reliance 6-30-EOLBS 100 capacity is 40 gallons, which is enough for a 3 to 4-membered family.
Specifications
- Brand: Reliance Water Heater
- Capacity: 40 Gallons
- Power Source: Battery Powered
- Item Dimensions LxWxH: 22 x 22 x 30 inches
- Color: Gray
- Voltage: 240 Volts
- Material: Aluminum
- Item Weight: 40.82 Kilograms
- Item Weight: 89.8 pounds
- Country of Origin: USA
Features
- Heat-trap nipples with a Pex polymer interior
- 95 energy factor aluminum anode rod
- This heater is electric, medium, dual 5500W, 240V elements, 3″ insulation, 95 energy factor, recovery at a 90 degrees rise-gallons/hours 25, first-hour rating 56, pex polymer lined heat trap nipples, pex dip tube, glass lined tank, duel mag anode rod, unit dimensions: 22″d x 50″h, 12-year tank & parts warranty, complies with new NAECA.
8. AO Smith SUN-80
Overall Score: 9.1 out of 10
A.O Smith 120 Gallon – 4,500 Watt ProMax Residential Electric Direct Solar Booster Water Heater
If you look for a more capacity water heater, then AO Smith SUN-80 can be the best choice for you. Its capacity is 120 gallons which is enough for a large family or heavy users.
Electric water heaters from AO Smith ProMax in sizes 80 and 120 gallons are made specifically to be used as a part of direct solar water heating systems. When the direct solar components are unable to meet system needs, they offer an energy-efficient backup source of water heating power and hot water storage to help maintain constant water temperature.
Specifications
- Brand: Generic
- Capacity: 120 Gallons
- Power Source: Corded Electric
- Color: White
- Material: Aluminum, Stainless Steel, Glass, Brass
Features
- Various Installation Connection Options Flexibility: Connections on the side and top for closed-loop or open-loop systems that use an external heat exchanger
- Dynaclean Diffuser Dip Tube: Increases hot water output by minimizing lime and sediment buildup.
- Constructed from durable PEX cross-linked polymer Long-Lasting
- Low-Watt-Density Heating Element – A low-watt density design disperses wattage over a broader surface area to increase energy efficiency and prolong the life of the heating element.
- Glass Tank Coating with Patented PermaGlas Corrosion and rust are reduced to the absolute minimum with PermaGlas liner.
- Corgard Anode Rod Plus Secondary Anode – An aluminum anode with a stainless steel core that lasts longer than regular anodes to protect tanks from corrosion.
- For even greater protection, a secondary anode was put in the hot water exit. Reduces standby heat loss with a 2″ Thick Environmentally Friendly Non-CFC Foam Insulation (R16 Value) Brass drain valve that is robust and tamper-resistant CSA Approved and ASME Rated
9. Camplux ME60
Overall Score: 8.8 out of 10
Camplux ME60 Mini Tank Electric Water Heater 6-Gallon with Cord Plug,1.44kW at 120 Volts
Yes, nowadays, it’s getting more popular to have an electric water heater for an RV. We have enlisted the best electric water heater for RV which is Camplux ME60.
Besides, based on your requirements, you can also choose Bosch Electric Mini-Tank Water Heater Tronic 3000T, RecPro RV Tankless Water Heater, or Camplux Tankless Water Heater Electric, which are the best-reviewed available on Amazon.
Camplux offers you a simple and effective comfortable way of life. Innovation, energy efficiency, and tankless technology are the three pillars of Camplux products. For your home, a Camplux tiny tank and tankless hot water heater. Enjoy hot water that is available whenever you need it.
Specifications
- Brand: CAMPLUX ENJOY OUTDOOR LIFE
- Capacity: 6 Gallons
- Power Source: Corded Electric
- Item Dimensions LxWxH: 15.75 x 15.5 x 18 inches
- Color: White
- Wattage: 1440 watts
- Voltage: 120 Volts
- Item Weight: 17.46 pounds
Features
- Saving money and energy by reducing heat loss with built-in insulation foam. Hot water is available right where you need it thanks to a 6-gallon point-of-use mini-tank that fits under your sink.
- High-Quality Construction & Elegant Design: The glass-lined tank of the Camplux electric water heater ensures a long service life and ease of maintenance. Beautiful cover with a sleek design that enhanced the beauty of your kitchen.
- Water temperature can be changed thanks to a thermostat control with UL approval for safety. High Limit devices offer overheating safety.
- A 43.3-inch cord can be installed independently or in line with a significant hot water source by plugging it into a 120-volt outlet.
- (CSA listed Temperature & Pressure relief valve incorporated, the maximum water pressure of 150 PSI)
- Can be installed on a shelf, a wall, or the floor (bracket provided); To deliver hot water, merely tap into the cold water line and install the water heater next to the sink. 15.75″ wide by 21″ high by 15.5″ deep.
10. Camplux AY132Max
Overall Score: 9 out of 10
Portable Tankless Water Heater, Camplux 1.32 GPM Outdoor Camping Propane Gas Water Heaters w/ Freestanding Stand and Carry Bag
For camping, you may look for a portable tankless water heater. In this case, we found Camplux AY132Max as the best electric water heater for camping. You can also use it with propane gas.
People are always enthusiastic and happy while they are outside. Camplux offers you an efficient and simple outdoor lifestyle. The three main characteristics of Camplux products are portability, energy efficiency, and innovation. Have Fun in the Outdoors!
Specifications
- Brand: CAMPLUX ENJOY OUTDOOR LIFE
- Capacity: 1.5 Gallons
- Power Source: Battery Powered
- Item Dimensions LxWxH: 11.42 x 4.33 x 14.8 inches
- Item Weight: 19.56 pounds
- Batteries: 2 D batteries are required.
Features
- Transportable and simple. It’s easy to use the Camplux portable water heater for camping, hunting, RVing, pet grooming, equestrian, greenhouses, or anywhere else that you need quick reliable limitless hot water because it has a portable handle, carry bag, and sturdy freestanding stand.
- Set up quickly. You can connect your Camplux with snap-on fittings for gas and water, set down the carry bag, and erect the stand, and you’re all set. The Camplux 5L propane hot water heater also comes with an 11.5 extension long shower line, a 5-foot rapid gas regulator, and a US standard garden hose.
- Rapid connections You can forget about dealing with spanners and thread tape if you have a portable hot water heater with a brass quick connection.
- Operates on a typical 20 lb. The travel-friendly portable water heater has an electrical ignition that is powered by two “D” cell batteries (not included). If there is no water pump or related power supply pump to deliver power outdoors, you may also hang the water bag from a tree. Just make sure it is at least 3 meters away from the water heater.
- The temperature range of the Camplux 5L propane tankless water heater is between 100 and 185 degrees Fahrenheit, with a hot water output rate of 1.5 gallons per minute (GPM).
Grab a More Reliable & Power Efficient Electric Water Heater
According to Statista, consumer evaluations on the reliability or trustworthiness of smart home devices like water heaters in the United States and Canada reported A.O. Smith gained almost 93% positive opinion.
Our Recommendation
Takeaway
New electric water heaters: are they more effective? Due to recently revised efficiency regulations, efficiency increases for water heaters 55 gallons or more range from 25 to 50 percent, depending on the technology utilized (heat pump or condensing). Water heaters under 55 gallons now get a 4 percent efficiency boost.
Don’t forget to choose the right voltage. If you need an electric water heater for your mobile home or RV, then a 120v water heater is okay. On the other hand, for residential purposes, you require 240v typically.
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