Best Electric Tankless Water Heaters – Reviews & Guide 2020

For those who love to take a warm bath, hot teas or coffees at almost every time of the day but you stay in an area with low gas supply? Here is an electric water heater that would help you to get over all these worries.

Unfortunately, with more than a dozen of these items, it becomes difficult to get the right water heater in the market. Considering this problem, this article has been written, with reviews from other products, and have come up with the 7 top best electric water heater you can get in the market. That is not all. It also comes along with a buying guide to give buyers the idea of factors to consider before going for an electric water heater.

Top 7 Electric Water Heater Reviews

Ecosmart ECO 11 Electric Tankless Water Heater

Ecosmart ECO 11 is one of the cheapest electric water heaters in the market. Apart from this, it comes in a tankless model that does not take up much space. EcoSmart created a series of tankless water heaters that provide varying levels of GPM support. Another fantastic feature of this model is that it comes with an adjustable temperature. That is a user select the temperature that suits him or her. This is done through the presence of a digital control panel. It can be clean and maintain easily.

On the other hand, this model heats water fast even though it makes noise during this process. It has a compact design and therefore does not take too much of space. With its self-modulating technology, the energy output of the water heater is effectively controlled to give efficient use and result.

It is an effective and efficient water heater with 2-gallon. This model is best selling electric tankless water heater due to this fact; it has the highest number of reviews. Since it is a tankless water heater, the installation procedure is easy, and it helps to save up additionally expenses which might have been spent on installing it. It is Eco-friendly water heated with WaterSense certification. Besides, it comes with a limited lifetime warranty.


  • Features a self-modulating technology
  • Easy installation
  • Eco-friendly model and WaterSense certification
  • Adjustable water temperature
  • Not expensive


  • Makes noise while heating water

Bosch Electric Mini-Tank Water Heater

The Bosch Electric Mini-Tank Water Heater makes it as the runner up with incredible features. It has an easy installation procedure in which the user can install it without much stress or ordering for the service of a plumber. This model is a lightweight nature that can be installed on a shelf, floor or wall mounted.

This product also does not take much space, and it is at the same time durable. The sleek design of this water heater makes it attractive for the users. It has a large gallon capacity which makes it a reliable water heater. Another unique feature about this model is that it heats water in a jiffy for immediate use.

More importantly, this product requires less maintenance, and it is also easy to clean as it is made from high-quality materials. It has a high level of energy efficiency and helps to save up expenses spent on gas. Similarly, this model comes with a temperature indicator for the user to know the level of the water temperature. It comes with a 6-year warranty on the units and a 2-year on the part.


  • Easy installation
  • Compact design
  • Heats up water quickly
  • Less maintenance
  • Has a sleek design


  • Sometimes it drips

Stiebel Eltron 36 Plus Tempra Tankless Water Heater

Stiebel Eltron is a tankless electric water heater. It has a sleek design which makes it attractive to all users. The design of this model is compact, and it can fit into any space of the installation. It features a temperature indicator that gives a user the knowledge of the level of water. Likewise, it has an easy installation process as all the necessary materials for installation comes with the model. This easy installation process also helps a user to save up some cash since the service of a plumber won’t be compulsory. This model features 36 plus Tempra.

Similarly, this product uses less energy of about 20-25% for efficient pressuring of the water. More importantly, this model fills up the tank immediately after use and the fresh water heats up fast for the immediate consumption of the user. It has 7-year leakage and 3-years complete part warranty. Users consider the major downside of this product as it’s pricey nature.


  • Efficient electric water heater
  • Compact design
  • Easy installation
  • Long term durability
  • Features 36 plus tempra


  • Expensive

Camp Chef HWD5 Triton Water Heater

Camp Chef as the name implies is the best outdoor electric water heater. It is most times used at camping, hunting, horse care, car wash, kid pools, tailgating, and a dog wash for an adequate supply of pressurized water. You can install this product easily in any place you find yourself. You only need to attach a garden hose to the water heater then your hot water is ready.

Furthermore, this model like most standard water heater has a large capacity as it has the capability of producing 1.5 gallons of warm water per minute. You just need to turn on the water heater, and your water gets hot instantly. What makes this product unique is that it is lightweight and at the same time a compact design that can be easily moved from one place to another without stress. Despite being a compact design model, its water temperature and flow can be adjusted to the user’s choice. Lastly, it comes with a 1-year limited warranty.


  • Has adjustable heat and water flow
  • Heat water fast and efficiently
  • Has a compact design
  • High hot water producing capability
  • Easy mobility


  • Has limited lifetime warranty

American Standard CE-12-AS 12 gallon Point of Use Electric Water Heater

American Standard CE-12-AS can be installed easily in spaces under cabinets, counters, mop sinks or in other confined areas. Another unique feature of this heater is that it comes with a drain valve on the bottom. With its point-of-use system, this model allows frequent cleaning without much stress.

It is also accessible for urgent use. American Standard CE-12-AS is a sizeable 12-gallon tank and has a responsive system which provides an excellent result for the user. Unlike most electric water heater, this product works for an extended period with fewer repairs. A heavy-duty steel exterior will inhibit corrosion and wear and tear. It features a thick Dura-Glass inside which most of the time is placed in pristine shape for years. This model comes with a variable warranty. For home use, it has a 6-year warranty on parts and tank. While for commercial usage, it has a 3-year limited warranty on the tank and a 1-year warranty on the part.


  • Long term durability
  • Has a large 12-gallon tank
  • Comes with point-of-use
  • Has drain valve
  • Comes with thick Dura-Glass


  • Does not come with adjustable temperature

Sio Green IR260 POU Electric Tankless Water Heater

Sio Green electric water features an infrared heating design that uses 110 volts to heat water fast and effectively. In another sense, this model is a reliable one because it does not give room for coils, corrosion, and sediments. It produces hot water at the capacity rate of 1.5 gallons per minute. This feature makes it an effective one for you pressurized water.

That is not all. Sio Green also comes in a compact design which makes it fit perfectly into any space, either small or large area. It is a user-friendly allowing users to adjust the temperature of the water heater to suit his or her taste. The temperature of this water heater is controlled by the digital control panel that gives a user the room to access the heater without stress. It is a maintenance free heater with easy cleaning processes.


  • Features infrared heating design
  • Gives no room for coil, corrosion, and sediments
  • Compact design
  • Easy operation due to the presence of a digital control panel
  • Maintenance free


  • Complicated installation procedures

Eccotemp EM-4.0 Electric 4.0-Gallon Mini Tank Water Heater

Ecotemp is a mini electric tank water heater. It is making our list as one of the top electric water heaters as a result of its outstanding water pressuring performances. It has a large tank with huge water capacity as it can hold up to 4 gallons of hot water.

Meanwhile, a user does not need to wait for an extended period for hot water as this model produces hot water in a jiffy. Apart from these, it has an easy installation procedure which helps the user to save up some cash which would have been paid for the services of a plumber of the installation had been found difficult. It is also a compact design water heater that can fit into any space.

Surprisingly, it helps to save space and money simultaneously. This product can be installed in a wall mounted manner or a freestanding one depending on the choice of the user. The temperature of this model can also be adjusted to the preference of any user.


  • Large water capacity
  • East installation
  • Compact design
  • Heats water fast
  • Adjustable temperature


  • Sometimes does not fit some sinks

Electric Water Heater – Buying Guide

The information that this article has given would be incomplete without the addition of the buying guide. The buying guide serves as a guide for a user who is going for the best form of an electric water heater. Also, this guide gives factors that should be considered before going for an electric water heater. Some of these factors are:


One of the significant factors to be considered is the capacity of the water heater. A water heater with a large capacity tends to be more effective and efficient compared to a model with a small water capacity water heater. For instance, some electric water heater can heat 1.5 gallons of water per minute. And some have 4-6 gallon capacity.


This is also an essential factor to consider. This is because an electric water heater with easy installation procedures helps to save up some cash that would usually have been spent paying the service of a plumber. Also, consider the area of installation of this model. For instance, some electric water heater can be a freestanding one or a wall or floor mounted form. And some even come in these three different installation methods.

Tank vs. Tankless

Considering between a tank water heater and a tankless one is a crucial factor. A tank model takes a lot of space but has a large water capacity while a tankless one has a compact design and don’t have a large water capacity compared to the tank model. Also, a tankless form tends to be durable for an extended period compared to the tankless form.

Adjustable Temperature and Water Flow

An electric water heater with adjustable temperature and water flow is one of the features of the top electric water heater. A flexible model gives the user the freedom to select the level of water temperature he or she wants to use. It also helps to preserve the energy of the water heater especially when the user only uses average level temperature. So it is paramount to consider this factor for an efficient electric water heater.


This factor is also an important one. Before you go for an electric water heater, you must consider the space where you want to install it. If you have a small area, then a compact design model is advisable. But if you have enough space, then you can go for a model with a large size.