Water heaters have been around for a long time and drain owners’ wallets. In fact, if you have a water heater in your home, you should be aware that using it raises your overall bill by 18%! Some individuals may not mind, but most dislike overpaying. Good news for these folks! If you want to spend less on water heaters, you need to use the best electric tankless water heater for whole house. These heaters are not only efficient and cost-saving, but they are smart as well. In this article, we’ll learn more about tankless water heaters.
Here is a comparison of the best electric tankless water heaters for the whole house.
| IMAGE | PRODUCT | DETAILS | CHECK PRICE | |
|---|---|---|---|---|
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OUR TOP PICK
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Ecosmart ECO 18 |
Ecosmart ECO 18 |
|
Check On Amazon |
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Premium Choice
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Titan Tankless Heater |
Titan Tankless Heater |
|
Check On Amazon |
|
Best overall
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Stiebel Eltron 224198 |
Stiebel Eltron 224198 |
|
Check On Amazon |
 |
Eemax EEM24036 |
Eemax EEM24036 |
|
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Camplux TE27 |
Camplux TE27 |
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Marey Power |
Marey Power |
|
Check On Amazon |
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Rheem RTEX-18 |
Rheem RTEX-18 |
|
Check On Amazon |
|
Thermoflow Elex 8 |
Thermoflow Elex 8 |
|
Check On Amazon |
Best Electric tankless water heater for whole house
As the name suggests, these heaters don’t come with any storage unit. Rather, these are standalone heating units that, if connected to the water supply line of your home, can supply hot water to the outlets. Whole-house electric tankless water heaters have several advantages. First of all, as there isn’t any storage unit, there won’t be any unused hot water. Simply put, the heater won’t end up heating excess water that you won’t use. Instead, whatever water you want to use will run directly through the water heater, and you’ll get warm water without overspending.
Another amazing thing that this system brings is that you won’t have to wait for the heater to heat up the water, which is definitely a huge problem for most people. You won’t have to wait for the heater to heat the water before taking a bath. The electric tankless water heater is smart as well. These heaters will be connected to all the showers, taps, and faucets in your home. However, you’ll never get cool water, even if you turn on too many outlets at once.
Most tankless water heaters come with smart technology that allows them to distribute the hot water across different outlets equally. If the number of open outlets exceeds the capacity the heater is said to provide, the heater will decrease the water flow in each of the outlets, keeping the temperature intact. This is why they are called “smart heaters.”
Another amazing thing about these heaters is that they are extremely durable. While a traditional water heater lasts around 10 years, electric tankless water heaters tend to last more than twenty years, making them the budget-friendly option in every way.
Ecosmart ECO 18 (B0047V0KSU)
Product Description:
If you’re looking for a high-quality and durable electric tankless water heater, then the Ecosmart Eco is one of the best choices that you have. The Ecosmart Eco is an 18-kW tankless water heater, and it comes with enough raw power to provide from 1.8 to 4.3 gallons of hot water. How much hot water you receive depends on the heater’s temperature.
Product Design and Quality:
According to the Department of Energy, Ecosmart ECO has the capability of saving 50% of your heating costs. Then again, it’s extremely compact, which makes it easy to store in any position in your home. These units are 90% smaller than the traditional water heater tanks. Furthermore, these heaters can spare you the touch of cold water, as they provide hot water on-demand. In this way, you can reduce the wastage of water as well.
- It saves up to 50% of utility bills.
- 90% smaller than standard heaters.
- It provides hot water on-demand.
- Features 18 kW of raw power.
- Some users report maintenance issues.
- The warranty won’t be available in your home using hard water.
Titan Tankless Heater (B003XRC2IA)
Product Description:
The Titan N-120 is a 220V, 54-amp best electric tankless water heater for whole house that performs like a Titan. The item weighs around 8 pounds, and it comes in white only. This tankless water heater is a great performer that’s free from many of the flaws that are commonly seen in most tankless heaters. Due to its high raw power, it can provide water to all the water outlets in your home. Even though it’s an average-sized water heater and bigger than the previous product, it still saves your utility costs by a whopping 60%, which is more than most other tankless heaters.
Product Design and Quality:
The Titan Tankless N-120 heater will provide you with the most comfort by providing hot water on demand. In fact, you can also cool the water down by using its built-in cooler. If the natural water temperature of your home is above 65 degrees Fahrenheit, then you should use this water heater.
- It has a high raw power of 220V and 54Amps.
- It saves utility bills up to 60%.
- can provide water to all the water outlets efficiently.
- It comes with a cooler as well.
- can’t operate if the breaker is below 60 amps.
- The warranty doesn’t depend on the date of purchase but on the date stamped on the unit.
Stiebel Eltron 224198 (B003QSENZ6)
Product Description:
The Stiebel Eltron 224198 is a whole-house electric tankless water heater that’s made in Germany, and it offers the famous German efficiency. This whole-house electric tankless water heater has advantages that others don’t. This apartment is modest, so storage isn’t a concern. Then again, you won’t need any sort of ventilation to keep this unit cool and running. Plus, it operates completely silently, which is great as it won’t tamper with the peace in your home.
Product Design and Quality:
This whole house electric tankless water heater doesn’t add any extra cost when it’s on standby mode. Then again, you will always get hot water on-demand, which means you won’t have to wait for it. Another amazing thing is that, as it doesn’t store any hot water, there’s no extra expense.
This heater also offers advanced flow control. Now, this is an amazing feature. This feature helps this unit distribute hot water equally across different outlets. It’s true that this unit is a bit smaller and has less capacity than the other heaters, but with this feature, it can make up for it. Due to this feature, you won’t get cold water, as the water flow will be minimized in all outlets. By minimizing the flow of water in each outlet, the heater can ensure that only hot water is being provided to each of them.
- Advanced flow control technology.
- The build quality is small and compact.
- It saves up to 99% of utility bills.
- It comes with a seven-year leakage warranty.
- Depending on your location, high installation costs.
- Expensive repair costs.
Eemax EEM24036 (B01N1Z0EVJ)
Product Description:
The Eemax EEM24036 is a beautiful whole-house electric tankless water heater, and it comes in a beautiful blue color. This is another amazing tankless water heater, and it will surely help you cut the cost of your utility bills. This device has tankless water heater characteristics.
For starters, this unit will help you by providing hot water on demand, and it won’t warm up any more water than you need. Then again, it also comes with water pumps that can wind back the cold water stored in the pipes. This will allow you to enjoy hot water as soon as you open the outlet, and you won’t have to waste cold water first.
Another amazing feature of this best electric tankless water heater for the whole house is that it can control and optimize the energy consumption smartly. Unlike the other water heaters, it won’t use the same amount of electricity all the time. Instead, it will only allocate the amount of energy it needs to operate.
Product Design and Quality:
The Eemax whole house water heater is made of stainless steel, which makes it a water heater of amazing durability. Then again, this item weighs around 23 pounds, which makes it a bit heavier than most water heaters. It’s hefty yet small, so it’s easy to store. This tankless water heater can pump up to six gallons of water per minute, making it one of the water heaters with the highest capacity.
- It can pump up to six gallons of water per minute.
- Very compact design.
- amazing stainless-steel build.
- can control energy consumption smartly.
- It weighs a lot, about 23 pounds.
- It won’t work if your house’s wiring doesn’t support 220V.
Camplux TE27 (B07THZPYKS)
Product Description:
This is a clever, easy-to-access whole-house electric tankless water heater. The Camplux TE27 costs almost the same as every other tankless water heater, but there’s one feature that makes it stand out from the others. Unlike other tankless water heaters, the Camplus TE27 may be managed wirelessly. This makes the water heater truly accessible, as you won’t have to run to the basement, or wherever it’s installed, to change the temperature setting.
Then again, this unit also features a touch screen panel for controlling the machine, which also makes it more modern and easier to use than the other water heaters. You can heat water up to 127 degrees Fahrenheit with this unit, making it a truly powerful water heater.
Product Design and Quality:
Safety is a big concern when it comes to such heating machines, and the Camplux TE27 offers it all. This unit can offer water that’s free from lead, and it’s approved by NFS as well. It also comes with overheat protection, leakage protection, and an ETL safety certificate. This unit is built with stainless steel, making it very durable and long-lasting.
There are some electric heaters that require a high water flow rate to be activated, but not the TE27. This heater will get activated even if the flow rate is as low as 0.85GPM. Overall, this 240V and 27kW Best whole house electric tankless water heater is an amazing choice for those who want not only a tankless water heater, but also a modern experience.
- can be controlled with a remote control or a touch panel on the heater.
- Stainless-steel construction for great durability.
- A very low flow rate is required for activation.
- can be heated to a temperature of 127 degrees Fahrenheit.
- The temperature tends to fluctuate a bit if set too high.
- The installation process isn’t simple.
Marey Power Pak-Plus (B0085Z9T90)
Product Description:
The Marey Power Pak-Plus is a great whole-house electric tankless water heater, and it can be bought at a more affordable price than the rest of the lot. Even though it’s cheaper than most tankless electric heaters out there, it sure gets the job done.
Not only is this effective, but it’s efficient as well. The Marey Power Pak-Plus tankless water heater can control energy consumption. This means that, unlike many other power-hungry tankless water heaters, this one won’t consume the same amount of energy no matter what you do. If you set the temperature to something lower, you will have to pay a lower utility bill. This makes the unit unique. It’s straightforward to use. One dial controls the temperature. Five temperatures are available. However, this feature is definitely a twin-edged sword. If you’re nitpicky about the customization, it’s not for you. It won’t allow you to set a custom temperature, rather, you’ll have to choose from the temperatures that are already set in the machine.
Product Design and Quality:
The Marey Power Pak-Plus whole house water heater comes with a filter built into it. This filter prevents sediment from gathering at the bottom of the machine, making it much easier to clean and maintain. Then again, as it has a smart energy consumption feature, it will allow the user to save up to 60% of their previous utility bills.
It’s a very small unit, so you’ll be able to install it almost anywhere. As it’s a bit more analogous and doesn’t offer any remote-control setting, we highly recommend keeping it close to your bathroom where you can control it easily. A great place to install this is right under the sink. As it’s a compact machine, it will fit right in there, and you won’t even realize that it’s there!
Although this is a great machine, it’s not for you if you want to connect it to many outlets at once. This is a small unit, and if you turn too many outlets on with it, you will experience cold water instead of hot water, and that can be very frustrating. So, we highly recommend setting up two of these, or you can install this if you want to connect it to the outlets of only one bathroom.
- Very compact design.
- smart energy consumption feature.
- Simple and easy-to-use controls.
- One of the most affordable machines.
- It doesn’t offer much room for customization.
- won’t work well if connected to too many outlets.
Rheem RTEX-18 (B01MR7Z39V)
Product Description:
This is one of the finest electric tankless whole-house water heaters available. The Rheem RTEX-18 boasts amazing build quality and tonnes of modern features that you would expect from a whole house electric tankless water heater. This machine’s top right LED displays the temperature. Below that display, there’s a dial, and you can change the temperature easily by dialling it. This not only makes the controls very easy, but it also retains the customizability that you may expect from such a device.
The Rheem RTEX-18 will also help you reduce the electricity bills in your home by using only the energy you require. This self-modulation system makes this unit effective as well as efficient. You won’t have to spend any more than you’re supposed to.
Product Design and Quality:
One of the best parts about the Rheem RTEX-18 best electric tankless water heater for whole house is that it’s very easy to install. All you need is some 34 inch NPT water connections, and you’re all set to install it wherever you want. This stainless steel machine won’t rust or deteriorate. If you’re cautious, it won’t scrape for years. Then again, as it’s easy to install, it’s easy to relocate as well. You can do this by yourself and without the help of an expert, making it a true DIY machine. The raw power of this whole house electric water heater allows it to pump around 4.5 GPM of hot water, which is enough to provide hot water to multiple outlets simultaneously.
- can pump up to 4.5 GPM of hot water.
- It is extremely simple to set up.
- Any temperature can be set with the LED display and the dial.
- Self-modulation allows it to allocate just the amount of electricity it needs.
- The LED display comes with a +1 error.
- Expensive.
Thermoflow Elex 8 (B07CV7ZZJ5)
Product Description:
The last whole-house electric tankless water heater on this list is the ThermoflowElex, and it’s definitely a good one. This unit is said to use 85% less energy than the traditional heaters that come with a tank. For this reason, this machine can save up to 50% on utility costs, which is great. Then again, it doesn’t require much maintenance, according to real buyers who have been using it for a long time. The activation flow rate is average. You need to use at least 0.6 GPM of water for this to get activated, which is reasonable enough.
This machine can be set from 32 degrees to 167 degrees Fahrenheit, making it one of the most versatile water heaters of its time. You can set the temperature using a dial that works with 1 degree of increment, giving you complete control of this machine. There’s also a red-backlit LCD screen in the middle of the dial, and this screen will show the exact temperature in real-time.
Product Design and Quality:
This is an environmentally friendly heater that doesn’t require any sort of ventilation as it doesn’t emit any gas. For this reason, the ThermoflowElex is considered to be 35% more environmentally friendly than the heaters that are run by propane or other types of fuel.
Then again, this unit comes with the Electric Temperature Control, or ETC, feature that’s an exclusive feature of Thermoflow. This function allows this heater to produce continual hot water. No matter how much you’re using this, you’ll experience a steady temperature in the water flow.
- Steady temperature.
- Energy consumption is reduced by 85%.
- It saves up to 50% of utility bills.
- It’s simple to use.
- It comes without a manual. Some people faced problems heating it up beyond 50 degrees.
Buying Guide of Best Electric Tankless Water Heater for Whole House
Length
Sizes of tankless water heaters vary. The ideal one for your home depends on your family size and hot water needs. Having one that is too small means that everyone will have less hot water. Running one that is too big will be more costly than necessary.
Calculate how many fixtures you’ll want to run at the same time and how much hot water each one consumes to get the ideal size for your house. When you add it all up, you’ll have the necessary capacity for your hot water heater.
You may choose between one large tankless water heater for the whole home or multiple smaller point-of-use water heaters for a single appliance or faucet. Point-of-use heaters are often positioned as near as possible to the appliance to which they’re supplying hot water, reducing lag time and removing the need to wait for your water to heat up.
Fuel Type
Both gas and electric tankless water heaters are wonderful options, but each has advantages and disadvantages. Tankless gas water heaters are more costly and need more maintenance than electric tankless water heaters, but they can heat a larger volume of water at any one moment.
Electric heaters don’t need to be vented, so they may be used almost anywhere in the house. However, if you have a lot of hot water, you may need to modify your electrical system to meet the extra electricity your water heater consumes.
Finally, the kind of tankless water heater you choose is determined by your specific requirements. To establish which gasoline type is best for you, consult a knowledgeable specialist.
Maintenance
We recommend getting your tankless hot water heater serviced by a professional at least once a year. If you live in an extremely cold climate or have hard water on a regular basis, increase this to twice a year. Even though electric heaters don’t need as much maintenance as gas heaters, you should still have a professional look at them to make sure everything is in good shape.
Keep this extra cost in mind while shopping for a new tankless water heater. The average fee for a professional service is between $40 and $100.
Conclusion
There are tonnes of whole-house electric tankless water heaters out there, but not all of them perform up to the mark. This article lists machines that provide as promised. However, no machine is perfect, and these ones come with their weaknesses too. We mentioned each one of their weaknesses and strengths so that it’s easier for you to understand which one is perfect for you. Hopefully, you’ll find a suitable machine here.
Frequently Asked Question
8-10 GPM
Both electric and gas tankless whole-house water heaters employ scale-reduction technology to be very efficient and versatile. Whole-house tankless water heaters deliver constant hot water.
High unit and installation costs. Slower hot water delivery. Cold-water sandwich. Multiple outlets cause inconsistent water temperatures.