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The 9 Best Electric Water Heaters for a Healthy Life from the Heat

An electric water heater is an insulated cylinder containing hot water that’s always ready for use. Some heaters only begin to heat the water as it’s pouring out, while others keep it within the tank at a constant temperature of your choice. An electric water heater is something exceptionally convenient to own –, especially in business. You can immediately fill your cup of coffee or noodle pot – all without waiting for the kettle to boil.

Your needs can dictate what the electric water heater that’s best for you will be. What works for someone else might not work for you. What’s more, the electricity consumption is something that could sway your decision one way or another. The best thing you can do is to check out these nine options below then think about what you will be doing once you get your heater. Taking the time to read all about them can help you avoid a whole lot of disappointment.

9. Bosch Electric Mini-Tank Water Heater

Even though there are some issues regarding the longevity of this electric water heater, you can rest assured a quality brand backs its products. Bosch has produced a standout water heater that will be suitable for apartments, kitchenettes, garages, boats, RVs, and more. Essentially, anywhere you need instant hot water but not a lot of it, this electric water heater will tick the boxes.

It’s affordable, which is a pleasant surprise with such a reputable brand, and you can choose the capacity to suit your needs as well. Opt for two-and-a-half, four, or seven-gallon options. To ensure the water remains hot but stable, this unit has a glass-lined interior, as well as being ideal for 120-volt electricity setups.

Bosch understands that not every kitchenette is the same either, so they make sure you have the freedom to install this electric water heater on a shelf, floor, or wall. It has an extra-long cord, so you don’t have to be near a power source, and it will heat water lightning quick.

If anything sets it back, besides the inferior quality parts on some units, it’s the thermostat. The range is extensive so it can take some trial and error to determine which water temperature is suitable for your needs. In saying that, it’s an excellent option for many people regardless.


  • 2.5, 4, and 7-gallon options
  • 98% thermal efficiency
  • Glass-lined construction
  • 12 amps
  • 37-inch cord
  • Shelf, floor, or wall-mountable
  • 120 volts


  • Versatile mounting options
  • You can use it in a kitchenette, RV, boat, basement, garage, and more
  • Various capacities to suit unique situations
  • Heats water quickly
  • Affordable to buy
  • You can link it to more than one sink
  • Minimal standby loss


  • The thermostat has too many options
  • The heating element doesn’t last a long time

8. Eemax Electric Tankless Water Heater

Eemax Electric Tankless Water Heater

This above heater is currently unavailable. Here is a similar heater: Eemax HA013240 240V 13 kW Electric Tankless Water Heater

If you are tired of endless unreliable and sensitive electric water heaters that break long before they are supposed to, then it might be time to upgrade to this unit from Eemax. Even though the blue color of it is an acquired taste and you need a 60-amp breaker, these are just two minor setbacks.

It features self-modulating technology to ensure it doesn’t have to use more power than it needs, and it’s a compact size too. Therefore, if you have limited space – such as on a boat, in an RV, or a small kitchenette, it won’t take up a lot of the available room.

What people also appreciate about this unit is its warranty. Eemax is so confident in the superior construction and parts that it comes with a five-year leak warranty and a one-year parts warranty. If that doesn’t offer peace of mind, then nothing will.

Finally, it’s affordable to buy, effortless to install, and comes with a full range of temperature control options. This electric water heater is leagues ahead of its competition.


  • Blue color
  • Self-modulating technology
  • Compact size
  • 240 volts
  • Five-year leak warranty
  • One-year parts warranty


  • The manufacturer offers generous warranty periods
  • It doesn’t use a lot of power
  • It’s a striking color
  • Affordable price tag
  • Effortless to install
  • The full-range temperature control unit is effortless to use
  • Premium quality parts


  • It only works with a 60-amp breaker
  • Only one color which might not suit your décor

7. EcoSmart ECO 11 Tankless Water Heater

Some people put off buying a new electric water heater because they can be quite expensive. Not only does this one not break the bank, but it comes with a generous warranty that can ensure all concerns fall by the wayside.

This water heater comes with a lifetime warranty, which means that if you strike any faults that the manufacturer caused, you can return the unit for a replacement. Fortunately, it’s unlikely you will need to do so. The water heater features premium parts, is available in six styles, and has some of the best self-modulating technology on the market. It also boasts nearly 100 percent energy efficiency to avoid any surprises on the utility bill.

That’s not all that will have you adding this electric water heater to your shopping cart, either. It doesn’t take up a lot of space, has elements that you can replace effortlessly, and it provides endless hot water by heating it as it passes through. This unit doesn’t store the hot water at all. This water heater will not disappoint.


  • 13 kilowatts
  • 240 watts
  • Six models
  • Lifetime warranty
  • Self-modulating technology
  • 99.8 percent energy efficiency


  • It provides endless hot water
  • It doesn’t use up a lot of electricity
  • It’s compact to take up less room
  • Generous warranty period
  • Competitively priced
  • The elements take minimal effort to replace
  • Some of the best self-modulating technology on the market
  • It heats water as it passes through instead of storing it


  • It requires a 60-amp breaker

6. Rheem Residential Tankless Water Heater

If you want one of the best electric water heaters on the market, then you will get all that and more with this unit from Rheem. Even though you do end up paying a significant sum of money more for this than another, you will undoubtedly see the difference in quality by doing so.

This electric water heater runs on 240 volts of power but requires your house to have at least 100 amps coming in as it can use up quite a bit. It also operates with two heating chambers and within one-degree of accuracy. If you need an ongoing, consistent flow of hot water, then this is the electric water heater for you.

What you will also appreciate is that it uses some of the best self-modulating technology available, while being effortless to install with its universal three-quarter-inch NPT water connections. Even someone with not too much experience might not have trouble installing this water heater.

Its LED lighting on the display is not that necessary, but it’s a flashy touch all the same. Pay through the nose for this electric water heater but expect fantastic results.


  • 240 volts
  • Two heating chambers
  • LED display
  • One-degree accuracy
  • Self-modulating
  • Copper immersion
  • Three-quarter-inch NPT water connections


  • Easy-to-read display
  • Doesn’t take much effort to install
  • Clean and stylish design
  • The power adjusts itself to meet the hot water demand
  • The temperature gauge is exceptionally accurate
  • An endless supply of hot water
  • Heats water quickly


  • Expensive price tag
  • You need at least 100 amps of power coming into your home
  • The LED lighting is not necessary

5. Eemax Blue Tankless Water Heater

If you don’t mind paying a little more for an electric water heater – both for the unit and the ongoing power bill, then check out this funky unit from Eemax. Stylish, compact, and adaptable to suit almost any environment, it’s worth a closer look.

The unique color scheme will be the first thing to stand out to you. It’s striking, vibrant, and will liven up any area. Unfortunately, if you don’t like blue, there are no other options. You then get to enjoy the peace of mind knowing Eemax cover you for any leaks for the first five years of its life, and one year for parts. These warranty periods are exceptionally generous.

It’s straightforward to install, provides hot water quickly, and has an easy-to-read digital display with a high-quality temperature gauge. While you may need to adjust the water flow, and this electric water heater uses a lot of power, it can be a convenient addition to any kitchenette for personal or business use.


  • Blue color scheme
  • Self-modulating technology
  • Digital display
  • 3.5 gallons per minute
  • 240 volts
  • Five-year leak warranty
  • One-year parts warranty


  • Unique style
  • Easy-to-read display
  • Generous warranty periods
  • Provides hot water quickly
  • Straightforward to install
  • Compact size for various environments


  • Expensive price tag
  • You will need to adjust the water flow
  • Uses a lot of power

4. Sio Green Tankless Instant Hot Water Heater

If all you need to do is take one shower and wash your hands, then this affordable electric water heater from Sio Green will be all you need. It doesn’t cost the earth, but it also wouldn’t suit a family or a large space.

If you want hot water, you have to adjust your water flow to slow, which defeats the purpose if you’re going to shower. It also won’t work all that quickly on lukewarm water too. In saying that, this electric water heater is more than suitable for personal or business use. It requires no maintenance, has no troublesome metallic coil elements, and gives you all the control with four power levels and a water flow regulator.

Its infrared style will also be a talking point, as will the fact that it doesn’t build up with limescale or corrode which can cost you money with other units. The 110 volts ensure a low power bill, while it’s effortless to install too. You would not use this electric water heater as your primary water heating source, but for lunch rooms and RVs, it more than meets the mark.


  • Seven model options
  • Corrosion-free
  • Infrared style
  • 110 volts
  • Patented technology
  • Metallic coil element-free
  • Four power levels
  • Water flow regulator


  • Affordable to buy
  • Suitable for boiling and regular hot water
  • It doesn’t build up with limescale
  • It won’t rust
  • It doesn’t need any maintenance
  • Compact size
  • You can choose a power level to suit you


  • You have to adjust the flow to slow if you want boiling water
  • It doesn’t work quickly

3. Thermoflow Elex Water Heater with Self-Modulating Temperature Technology

Thermoflow Elex Water Heater with Self-Modulating Temperature Technology
No products found.

As long as you use this electric water heater for handwashing and dinner rooms, you will have nothing wrong to say about it. It doesn’t cost a lot, does its job, and does it well. It won’t run a shower, but if you don’t need it to, that’s not a problem.

It’s a 240-volt, 12kW unit, comes in six models so you can choose one to suit, and it will activate its flow at 0.6GPM, that’s plenty to start you off. Your electricity bill also won’t send your blood pressure sky high as it has 99 percent heating efficiency to sweeten the deal.

If you are worried about this electric water heater taking up a lot of space, don’t be. It’s compact, sleek, and slim, and even though it doesn’t come with instructions, takes little effort to install it. It uses a half-inch NPT fitting and weighs a mere 5.4 pounds once you put it on the wall.

Sealing the deal is how effortless this electric water heater is to operate. The display is bright with effortless functionality, and it won’t rust or build up with acid so needs no maintenance either. You will find very few things to complain about with this electric water heater.


  • 240 volts
  • 12 kilowatts
  • Self-modulating technology
  • Six models
  • 0.6 gallon-per-minute activation flow
  • 99% heating efficiency
  • 5.4-pound weight
  • 1/2inch NPT fitting
  • 115 PSI rate


  • Provides instant, reliable hot water
  • You can choose from several models
  • Sleek style
  • Compact and lightweight
  • It’s exceptionally energy efficient
  • Easy-to-read display
  • It won’t rust or build up acid
  • Straightforward to install


  • Doesn’t arrive with instructions
  • Doesn’t run a shower

2. Stiebel Eltron Single Sink Tankless Electric Water Heater

If you believe an electric water heater will prove convenient in your staff kitchen, place of business, or in a commercial setting, then check out one of these nine models from Stiebel Eltron. Even though it’s not suitable for home use due to its lack of power for showers and the like, it’s going to suit a commercial premise well.

You can use it for one sink then enjoy its hydraulic controls and minimal power usage on 120 volts. It uses at least 50 percent less power than other similar electric water heaters on the market. There are also many other features you are bound to love about this electric water heater. It comes with a generous three-year warranty, offers a flow rate of 0.5 gallons, and operates on 3,000 watts of power too. Sealing the deal is how affordable it is. If you want reliability, quality, and affordability all in one, then check out this water heater today.


  • Nine models
  • Single-sink compatible
  • Hydraulically-controlled
  • Resettable safety limit switch
  • Three-year warranty
  • 120 volts
  • 0.5 GPM
  • 3,000 watts


  • Affordable to buy
  • Energy efficient
  • Stylish design
  • Effortless to install
  • Generous warranty period
  • Lightweight
  • Heats water quickly
  • Suitable for a range of settings


  • Not powerful enough for regular home use
  • Terrible instructions
  • Powerful flow means your water won’t heat to a high temperature

1. Eccotemp Electric Mini-Tank Water Heater

What you will quickly discover on your hunt for a new electric water heater is that there are several options. Most, however, are large and cumbersome. If you have limited space, this one from Eccotemp is going to suit you better than most. It’s compact, doesn’t take up much room, but will still provide you with almost-instant hot water.

Upon looking at the options, it will please you to know there are three capacity options. Choose from two-and-a-half, four, or seven-gallon options to suit your unique situation. You can then install it in your kitchenette, work break room, garage, boat, RV, or anywhere you need instant hot water.

You can adjust the temperature using the control unit, then use up all the water before it begins to heat again. The recovery time of this electric water heater is around 45 minutes which is a long time but is standard for such a small unit. When you buy it, you also get a pressure relief valve to stop blockages in the lines.

The installation process is effortless, it doesn’t use a lot of power so your utility bills won’t be a surprise, and it’s versatile especially since it’s small. You won’t be able to run your entire house on this small electric water heater, but for adding water to food, cleaning, and other small tasks, it will more than fit the bill.


  • 2.5, 4, and 7-gallon options
  • Adjustable temperature control
  • Pressure relief valve included
  • Wall and floor-mountable
  • 45-minute recovery time
  • 120 volts
  • 1,440 watts
  • 150 PSI pressure


  • Doesn’t cost a lot to buy
  • It doesn’t use a lot of power
  • Straightforward to install
  • It runs on minimal power
  • It won’t take up a lot of room
  • Straightforward to operate
  • Ideal for break rooms, kitchenettes, and more


  • It takes a long time to heat the water once you run out
  • It doesn’t hold a lot of water

Considerations for Purchasing an Electric Water Heater

If you don’t know the details of an electric water heater and what you could need, then you might be inclined to select the first – and most affordable – one you see. Unfortunately, this is more likely to end in disaster. If you need an electric water heater, it’s in your best interests to research what you need it for and what will likely fit the bill. Consider these points before making your final decision.

  1. Gallon Capacity

    Are you going to be using your water heater for adding water to noodles, pouring cups of coffee, and washing your hands? Then a smaller capacity electric water heater is going to be more than suitable. What about showering and general home use? As a rule of thumb, the more hot water you need, the larger the capacity the water heater has to be.

  2. Price

    A high-quality electric water heater can cost a few hundred dollars, but it can often be worth the cost. A few things determine the amount, however. Usually, if it’s a higher capacity unit, you pay a little more as it can hold more water. But, if it heats water quickly or has standout features, you can spend more for that too. Name brands also tend to cost a bit more.

  3. Warranty

    Electric water heaters can be sensitive to many things, and all it takes is for a manufacturing flaw on an installation tool to cause a dramatic failure. If you want to minimize the risk of anything significant happening that costs you a fortune, then ensure the electric water heater you are buying comes with a warranty. Most manufacturers will cover their units for at least a year, while others will even go one step further by protecting you with leak protection for half a decade. Never buy an electric water heater that comes with no warranty at all.

  4. Installation Process

    The installation process for most water heaters is quite similar, but each unit is different which can either stump you or see you come into your element. If you don’t consider yourself to be a plumbing expert, however, then it’s best to call someone to install it for you. On that note, your warranty is often void if you install a water heater yourself and something goes wrong.

  5. Water Heating Capabilities

    The water heating capabilities of each electric water heater differ, so you may like to read the feedback on the unit you are eyeing up to see what people say. There are very few things more annoying then pouring lukewarm water into your coffee then having to suffer through drinking it!

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