Best rated electric tankless water heater in 2022 – BestHeaterGuide

1. Stiebel Eltron Tempra 24 Tankless Water Heater

Stiebel Eltron Tempra 24 is a new generation of tankless water heater that is perfect for families who have multiple bathrooms and are looking for great value for money in both the price and its performance. It gives plenty of hot water to support multiple showers at the same time.

Thanks to its self-modulation capability, you can be sure that this unit will have no Standby energy loss and will save you a pretty sum in your bills. But, it doesn’t stop there – the Tempra 24 is incredibly quiet and has a durable copper heating element for higher efficiency and longer life.

Features:

Advanced Flow Control

If you love your shower and don’t want to get any cold water in between then this tankless water heater is the perfect choice for you. Its advanced flow control allows it to modulate the water flow rate to ensure a steady and continuous stream of hot water even if tankless water heater capacity is exceeded. 

Quiet

The Tempra 24 is a high-performing, hot water solution that offers the highest level of comfort and flexibility with its quiet operation. It has a large number of technical options and performance features that consider your experience as the highest priority.

Self-Modulating

A smart setting that adjusts the power usage of the tankless water heater to match the water demand and prevent all kinds of standby energy losses. This way you get the smallest of bills with the same hot water usage.

Warranty

Stiebel Eltron Tempra 24 is accompanied by three year part warranty and a seven-year warranty against leakage protection.

Certifications

CSA and UL certified

      This module needs the following requirements for proper functioning; 

2. ECOTOUCH 5.5KW Tankless Water Heater

In our ranking, the Ecotouch 5.5KW is the finest POU electric tankless water heater. Being a point of use (POU) tankless water heater, it is extremely compact with sufficient power to facilitate a single outlet, which in case of colder climates can support the needs of your sink only, and by no means can it support the needs of the shower which typically need 2-2.5 GPM of flow rate to operate. Hence, if you are looking to buy it for your shower, don’t do so as it only offers a flow rate of 1.5 GPM with a temperature rise of 30°F.

The thing that makes it the best POU electric tankless water heater is its affordable price, a higher than normal hot water output compared to its counterparts, and advanced features like self-modulation. While its attractive glass finish design is a great addition to any home décor.

Features:

Smart Self-Modulation

This water heater is self-modulating which means it can detect when there’s a sudden spike in hot water usage, and boost its output to match demand. The same is also true when there is no water demand or limited demand in which case it will operate at close to no power or at a lower capacity.

Digital display and touch control panel

Its simple and user-friendly design comes with a digital display that allows you to see the temperature value upon which the tankless water heater is set while its touch control panel allows you to adjust the temperature setting according to your desires.

Sleek and compact design feature tempered glass finish

Tankless water heaters are great in providing you with hot water but what if they are stylish as well. If that’s what you want then Ecotouch 5.5kw is perfect for you. It has a sleek design that is compact to fit in the smallest of places as well as its glass finish design is nothing less than an eye grabber.

Overheating and Over-voltage protection

Ecotouch 5.5Kw is not just good but also is very safe to use. It has overheating protection to prevent water from getting to a temperature that is scalding and shuts off automatically if it is done so. Also, its overvoltage protection will protect the unit from damages against irregular voltage fluctuations.

Warranty

Ecotouch offers a 1-year warranty on this unit.

Certified

ETL and UL certified

      This module needs the following requirements for proper functioning; 

3. Ecosmart ECO 27 Tankless Water Heater

EcoSmart ECO 27 is the ideal solution for people that are looking for high performance as well as affordability. It is very popular among tankless users and its advanced features and lifetime warranty make it highly sought after. It is a user-friendly tankless water heater both in terms of its functioning as well as for being easy on the pocket.

It is a powerful unit that gives 7 GPM of hot water output that can easily meet the whole house’s needs. It is rated a 4.4 on Amazon with over 2000 reviews, where customers gave it a 4.1 based on ease of use and energy efficiency.

Features:

Energy Efficient

The Ecosmart ECO 27 is the best solution for you if you want a tankless water heater that uses less energy and gives limitless hot water. As it is equipped with self-modulation capability that enables it to modulate its power based upon your need. This way you get endless hot water at lower energy consumption.

Digital Temperature Control

Digital temperature control is one of the many remarkable features of the ECO 27. Its digital display allows you to see and manage the temperature settings. You can also adjust the temperature with a precision of 1°F so you can have a more consistent water temperature.

Copper Heating Elements

Copper has higher conductivity to heat than stainless steel, which means that it will heat water faster thanks to its heat conductivity which is 20 times that of stainless steel. Hence, ECO 27 will heat water faster than its counterparts which use stainless steel heating elements.

Warranty

You won’t believe it but it’s true. The entire tankless water heater is covered by a lifetime warranty. Hence, you won’t have to be troubled about encountering troubles and being unsure of what to do. However, read all of the warranty terms and restrictions, such as the fact that installing the device yourself voids the warranty. To be honored, it must be installed by a professional.

Certified

CSA, ETL, and UL listed

      This module needs the following requirements for proper functioning; 

4. Stiebel Eltron DHC 3-1 Tankless Water Heater

The best 120v electric tankless water heater on the market is the Stiebel Eltron DHC 3-1 tankless water heater. Designed with a wide range of features like this energy-efficient water heating system will provide you with 50% energy savings on your bills. It does this while being extremely quiet thanks to its hydraulic controls.

Being a less powerful tankless unit doesn’t mean that it will be a disappointment. You will be amazed by the thing it can do which even the most powerful tankless water heaters cannot do.

Features:

Hydraulic controls:

This DHC 3-1 water heater is a high-quality product made for any type of building. It’s simple to operate, and the hydraulic controls keep it quiet. You won’t have to worry about it making a lot of noise when it’s running.

Self-modulation

Stiebel Eltron DHC Series is the latest and most advanced technology in tankless water heaters. It saves energy by only heating the water you need using the minimum power required only at the time you need it.

Easy installations

This high-performance and compact tankless water heater from Stiebel Eltron is the ultimate solution for space-saving installation. Its modern and sleek design fits perfectly into any area of your home. Furthermore, because of its sturdy technology, it is simple to install and requires little to no maintenance.

Hot Water Capacity

Warranty

It comes with a 3-years warranty for the parts, in case you face any part failure, and a 7-year warranty for leakage protection.

Certified

This unit has been certified by WQA, ANSI/UL and CSA certified.

      This module needs the following requirements for proper functioning; 

5. Ecosmart Eco 11 Tankless Water Heater

Ecosmart ECO 11 is the best seller point of use tankless water heater on Amazon. It has over 3000 reviews on Amazon and is rated 4.4 out of 5 stars. This goes to show that the product itself has a solid build quality and great performance that why it is the best seller among the numerous tankless water heater. It self-modulation technology gives you 60% of your water heating bill as a saving thanks to its efficient working making it one of the best tankless water heaters for home use in terms of both hot water supply and energy efficiency.

On the other hand, its digital temperature control is extremely easy to use for adjusting the desired water temperature. In addition, its lifetime warranty is the most attractive factor for its popularity.

Features:

Self-Modulation

It features a self-modulation capability that allows it to optimize its power based upon your water demands. This way you only need to pay for what you get and all this without any input or repetitive action to be taken.

Copper Heating Elements

Copper heating elements are resistant to corrosion which makes them a good choice against scale deposits causing corrosion but the best thing about it is that copper heating elements boost the heating process due to their higher heat conductivity and transferability.

Hot water Capacity

The hot water capacity of a tankless water heater is subject to change based upon the temperature rise that it needs to bring in the incoming water. The below table can give you a better sense of eco 11 hot water capacity based on temperature rise.

Warranty

Just like EcoSmart ECO 27, Ecosmart also offers a lifetime warranty on ECO 11. Similarly, the conditions to honor it are also the same.

Certified

ETL listed to CAN/CSA and UL

      This module needs the following requirements for proper functioning; 

6. Rheem RTEX-18 Tankless Water Heater

Rheem is a well-known brand with over 50 years of expertise. It is a well-known tankless water heater producer all over the world. It has a large selection of products to meet your demands and budget. It RTEX series is especially loved by its users all over the world.

We chose RTEX-18 as the finest tankless water heater for tiny homes in this series. Being a Rheem product, it is made of durable components that give it a longer life. With its flow rate of 4.4 GPM, it is sufficient enough to fulfill all the needs of a tiny house. It will offer you all of the hot water you require without wasting electricity thanks to its Self-Modulation technology.

It can be installed without any difficulty in your home and will prove to be an asset for years to come.

Features:

Precise temperature control

Rheem RTEX-18 features an innovative digital thermostatic control that allows you to efficiently manage your temperature settings with the help of dial-in 1°F increments. Such that the water you receive is never overheated or cold.

Durable Construction

Rheem RTEX-18 is built with durable parts made of copper which are meant for long-lasting use and are durable to wear and tear, and corrosion.

Self-Modulation

Its smart modulation technology automatically adjusts the unit’s productivity levels, to meet your demand in the most efficient way.

Noiseless operations

Rheem RTex-18 operates noiselessly to give you both the comfort of your hot water showers as well as the peace that you so much desire.

Warranty

5-year for heating chamber and 1-year for parts

Certified

ETL, UL, CSA, and WQA certified

      This module needs the following requirements for proper functioning; 

7. Siogreen SIO 18 Tankless Water Heater

The Siogreen SIO 18 tankless water heater for hard water is the most innovative and safest tankless water heater available. It uses quartz heating elements with far infrared technology that doesn’t let scale deposits accumulate over the heating elements. Generally, when hard water is heated minerals are present in it get removed which is accumulated on the heating elements that reduce the tankless efficiency by reducing the heat transfer from the heating elements to the incoming water. But with Siogreen quartz heating elements, it is not the case. Quartz heating elements don’t allow the scale to get deposited on them which leads to them accumulating at the bottom. While its self-cleaning design removes scale deposits at the bottom of each use.

With Siogreen SIO 18 you need to do flush this unit as 4 times less than other tankless water heaters.

Features:

Quartz Heating Elements

SIO Green Tankless Water Heater is the first tankless water heater in the world to employ quartz heating elements. This makes it the most capable tankless water heater to fight against scale deposits accumulation.

Self-Modulation

It is a must-have feature in a tankless water heater. It allows the tankless water heater to modulate its power depending upon your need to ensure that only the minimum energy needed for the task is used. This way you can get higher savings on your energy cost and water heating bills.

Safety:

SIO 18 features overheating protection to prevent the tankless water heater from heating water to such a high level that it may scald you. When it senses that the water temperature has risen above a specific point, it will immediately turn off the electricity.

It also has a leak protection design that eliminates the chance of tankless water heater leaking.

Maintenance-free

The best thing about it is that it is maintenance-free which means you don’t have to keep a tab on the maintenance schedule. Most of the scale deposits are removed as it is used thanks to their self-cleaning design. However, it is still advised that you still do maintenance after every year or two.

Warranty

Siogreen offers a great warranty with this unit. It includes a 5-year Unit warranty and 10-year heating elements warranty

Certified:

WRAS certified, MET (US) certified, and CE certified

      This module needs the following requirements for proper functioning; 

8. Stiebel Eltron 36KW Tankless Water Heater

Large homes have a large demand for hot water which makes it obvious that it is going to need an extremely powerful tankless water heater. Stiebel Eltron 36KW tankless water heater is just perfect for that. Just like any other electric tankless water heater, this 36KW is also the biggest unit in the Stiebel Eltron range of electric tankless water heaters. It offers a flow rate of 8 Gallons per minute which is enough to support 4 showers at the same time. While its advanced flow control ensures that even if you open more than 4 outlets you will still get hot water although with lower water pressure.

Features:

Advance Flow control:

It is a patented technology by Stiebel Eltron that you won’t find in any other tankless water heater. It is great for the fact that it doesn’t let you run into cold water. In case you draw more water than the tankless water heater can provide. It will control the water coming to you by not letting you get the cold water. What it will do is that it will provide you with hot water at all open outlets but only in the lower capacity as hot water is distributed to all open outlets.

Self-Modulation:

Being a powerful unit, you would expect to get a higher bill than true but it is not as much as you think. Thanks to its self-modulation feature, it will operate at the least energy needed to perform its function. Hence based upon the water demand, it will adjust power to bear the minimum needed to match your demand.

Easier Controls:

It features an easier and more precise temperature setting that allows 1-degree increments between 86°F to 140°F.

Warranty

Stiebel Eltron offers a warranty for both leakages and for the part. Where it offers 7-years coverage for leakage and a 3-years period for parts.

Certified

ANSI/UL, CSA, ISO, WQA, and NSF certified

      This module needs the following requirements for proper functioning;