Generally, a tankless water heater is installed to appliances or faucets requiring hot water. The shower, washing machine and kitchen are some of the common places where a water heater is used.
Unlike the traditional model, a tankless water heater is able to offer a long list of features and advantages. Opting for the best tankless water heater 2020 is a smart investment for your home.
Many use this product because it is energy-efficient, available in different sizes, a space-saver, and an environment-friendly machine.
However, the market is flooded with many tankless water heaters in different brands and models. This makes it hard for you to choose the best one.
We have compiled reviews of some of the top rated tankless water heaters and tips on how you can select the most suitable water heater suitable to your needs. Let’s dive in!
Tankless Water Heater Comparison Chart
|Image||Tankless Water Heater||Fuel Type||GPM||Price|
|Eccotemp L5||Propane||1.4||Check Price|
|EcoSmart ECO 27||Electric||6.0||Check Price|
|Stiebel Eltron Tempra 24 Plus||Electric||5||Check Price|
|Takagi T-KJr2-IN-LP||Propane||6.6||Check Price|
|Rinnai RUC98iN||Natural Gas||9.8||Check Price|
|EcoSmart ECO 11||Electric||2.0||Check Price|
|Takagi T-H3-DV-N||Natural Gas||10||Check Price|
|Eccotemp L10||Propane||2.65||Check Price|
|Camplux 5L||Propane||1.32||Check Price|
|Rheem RTE 13||Electric||4.0||Check Price|
Top 10 Tankless Water Heater Reviews
1. Eccotemp L5
Easy maintenance, easy installation, durable, and simple to use – these are some of the good things people say about the Eccotemp L5. If you are looking for the best tankless water heater, this particular model can be the one thing you need.
The product takes pride of its industrial-strength features and accessories. The Eccotemp L5 is known as a portable tankless water heater you can easily set up within minutes.
With this model, you will have endless supply of hot water anywhere you are. Since the water heater is portable, it is perfect for washing your horse, taking a hot shower, washing your boat or car, and more.
Moreover, it comes with an electronic ignition that is powered by 2 “D” cell batteries. It takes pride of its 20-minute automatic safety shutoff timer and easy 3-step setup. Whether you are camping with friends or family, you can rely on this tankless water heater all the time.
It is true that the Eccotemp L5 has a great list of advantages, but it also has some downsides. This water heater is for outdoor use only.
Aside from this, some users complain that the heater has no real temperature control. On the other hand, some say that rain and wind can drown or blow out the burner.
2. EcoSmart ECO 27
The EcoSmart ECO 27 is praised for its durable construction and high performance when it comes to heating the water. It is considered to be one of the most powerful tankless water heaters available today.
With its features and specifications, it has the capacity to produce hot water for large tubs, large single-family homes, etc. It is energy-efficient equipment you can use at home.
As a matter of fact, it allows you to save up to 50 percent on water heating costs. This model is a highly advanced, self-modulating technology that gives you hot water in seconds.
The EcoSmart ECO 27 boasts its stylish and advanced design. On the other hand, this tankless water heater has copper and stainless components for added durability and efficiency.
For better accuracy, the water heater is designed with a digital temperature control. It has a minimum temperature setting of 80 degrees F. Meanwhile, it has the ability to maintain the water temperature up to 140 degrees F.
While most customers are impressed with the performance and durability of the EcoSmart ECO 27, some people are disappointed with some of its features.
There are owners who complain about a slight delay before hot water is made available. According to them, you may need to wait for a few extra seconds before it comes out.
3. Stiebel Eltron Tempra 24 Plus
The Tempra 24 Plus has impressed many homeowners because of its proven reliability and sleek design. With its fantastic features, it is a dependable water heater.
To give you ease and convenience, it is equipped with Advanced Flow Rate control and digital temperature control. This electric water heater has a maximum GPM rate of 4.0.
When it comes to the design and construction, it is very well-made and of high quality. If you are looking for the best tankless water heater, it is a good choice for you.
Many people are impressed with how energy-efficient the heater is. In fact, it boasts 99 percent energy efficiency. It is also known for its good water flow. Moreover, the product is available with a 3-year warranty.
It is true that the Tempra 24 Plus is able to offer a great list of advantages; however, it comes with disadvantages at the same time.
Some owners complain that the product is slightly more expensive compared to other brands or models. Moreover, this tankless water heater may require additional electrical work.
4. Takagi T-KJr2-IN-LP
If you are looking for a highly durable and dependable tankless water heater, the Takagi T-KJr2-IN-LP is a good option to take into consideration. It is specifically designed to serve a household for as lengthy as ten years.
The unit is equipped with highly advanced switches. These built-in DIP switches give you ease and convenience.
This particular water heater only takes a small amount of space for it to be installed yet efficient enough to perform its tasks. It has thermistor chambers in order to make sure that the water temperature is in check at all times.
Aside from this, this tankless water heater has about 6.6 gallons of water per minute flow rate. Moreover, it has a 0.5 GPM activation rate plus 110V of power supply in order to initiate the proceedings.
The Takagi T-KJr2-IN-LP is loved for its list of great features and advantages, but it comes with some drawbacks at the same time. The product has an expensive installation if you do not know how to install it yourself.
On the other hand, if you have a huge residence, you might need to have two separate units in order to accommodate everything in the house.
5. Rinnai RUC98iN
It is the dream of homeowners to have the best tankless water heater for household use. If you are one of them, the Rinnai RUC98iN is a great option for you.
This compact water heater allows you to save more space. Since it is an eco-friendly product, it is safe for the environment. With its features and advantages, the product is considered a masterpiece.
It is perfect for modern homes because it is portable and dependable. Weighing 82 pounds, the Rinnai RUC98iN comes with a 9.8 GPM flow rate.
Its adjustable temperature system allows you to adjust the temperature of the water depending on your preference. With this tankless water heater, you’ll have fresh hot water in minutes.
The Rinnai RUC98iN is known for its fantastic features and advantages, but you also need to remind yourself that it comes with some drawbacks. According to some homeowners, this tankless water heater has an expensive installation cost.
On the other hand, it has a limited flow rate. This means that you cannot rely on this unit if your household has a heavy use of hot water all at the same time.
6. EcoSmart ECO 11
With its digital temperature control and stylish, highly advanced design, the EcoSmart ECO 11 is a dependable tankless water heater for your home. If you are searching for an energy-efficient water heater, it is a good option for you.
The unit takes pride of helping you save up to 50 percent on water heating costs. Since the water heater is electric, you don’t have to worry about connecting the unit to any propane tanks.
It has the ability to heat water up to 105 degrees Fahrenheit. On the other hand, you can expect the product to be a space-saver because of its compact size.
One of the interesting things about this equipment is that it is one of the most affordable tankless water heaters on the market.
It is true that the EcoSmart ECO 11 has a list of fantastic features and advantages; however, there are some drawbacks about this unit. According to homeowners who have already tried the product, it is not suitable for larger households.
If you really need this water heater for your home, it may require you to purchase two separate units. Also, some say that during simultaneous usage, there are possibilities of slight delays of flow and pressure.
7. Takagi T-H3-DV-N
If you are searching for a powerful water heater unit, you can rely on Takagi T-H3-DV-N. This tankless water heater is equipped with some of the best features and specifications to make it a high performance product.
One of the interesting features of the unit is its ability to offer 10 GPM water flow. If you are in need of fresh hot water fast, the Takagi T-H3-DV-N can give it to you.
If you want hot water for your dishes, clothes and shower, the unit is able to provide a water temperature of up to 185 degrees F.
The machine is reliable enough to handle simultaneous showers and sinks. In other words, it is a powerhouse unit.
Specifically built to be durable and dependable, it is high performance equipment but the Takagi T-H3-DV-N has its downsides as well. One of them is the fact that it is more expensive compared to other brands and models.
In other words, if you are looking for an affordable tankless water heater, this unit is not for you. On the other hand, it may require you to spend money just for the installation specifically if you cannot install the unit yourself.
Moreover, some users complain that the GPM has the tendency to falter in colder climates.
8. Eccotemp L10
Easy to store, compact, lightweight, and dependable – these are some of the good things to say about the Eccotemp L10. It is one of the reliable tankless water heaters available today.
If you are in need of hot water at your lake home, farm, cabin, or summer cottage, the unit is able to deliver hot water of up to 2.6 GPM. Plus, it has the ability to heat water ranging from 80 to 145 degrees Fahrenheit.
Another thing is, the equipment is packed with 2 “D” cell battery. With this, there are no possibilities of overheating. The product boasts a 20-minute automatic safety shutoff timer.
When you purchase the water heater, the package includes a garden hose adapter, stainless steel rain cap, CSA regulator and a 1-year manufacturer warranty.
Another interesting thing about the Eccotemp L10 is its 85 percent energy efficiency. If you want a water heater that lets you save energy and money, it is an excellent choice.
The Eccotemp L10 is specifically designed to offer you durability and high performance. However, just like other tankless water heaters on the market, it comes with some downsides. The unit is not suitable for indoor use.
In fact, it is made for outdoor recreational use only. You cannot install it in any permanent place. It cannot be plumbed into showers, sinks, etc.
9. Camplux 5L
Equipped with highly advanced technology, the Camplux 5L is one of the most flexible and energy-efficient tankless water heaters you can find.
It takes pride of its one-of-a-kind portability. With this, you can transport the unit from one place to another. You will love how energy-efficient the machine is. It is able to operate with minimum energy needs.
This tankless water heater is excellent for those people who travel a lot. On the other hand, it utilizes 2 D Cell batteries for ignition that is why there is no need to worry if there is no available electricity source.
Also, the Camplux 5L offers 1.32 GPM. On the other hand, it boasts a low pressure startup. It only requires 2.0 PSI of water pressure for the tankless water heater to start up.
Just like any other tankless water heaters on the market, the Camplux 5L comes with many advantages. However, it doesn’t go without any disadvantages.
The water heater is said to have a slower water supply than other heaters. Another complaint about the unit is that it has a hard time reaching higher altitudes.
10. Rheem RTE 13
If you are searching for an efficient, easy to install, easy to use, and a space-saving tankless water heater, the Rheem RTE 13 can come to the rescue.
The unit is especially designed to have a compact body. That is why it is suitable for boats, offices, apartments, homes and other places requiring hot water. Despite of its small size, this tankless water heater is highly durable and dependable.
One of the most interesting features of the equipment is its temperature control system. This particular feature gives you the freedom to set the unit’s temperature without the need to pull the heater.
At full flow, the unit is able to offer 4 GPM. It is also equipped with a modulating power feature. With this, the machine is able to provide you with continuous flow of hot water while saving energy.
When using the Rheem RTE 13, you will know whether the unit is in standby mode or active through its LED indicators.
With all the great features and advantages it can offer, the Rheem RTE 13 is praised by its users. However, it doesn’t go without any downsides.
Some consumers complain that the product requires you to purchase some additional components for it to become fully functional. In this connection, you may need to spend more money on it.
How to Choose the Best Tankless Water Heater
Selecting the best tankless water heater can be quite stressful specifically if you have different brands and models to choose from. Just like other products on the market, they are available in different prices.
To help you pick the most suitable water heater for your needs, here is a list of various factors to take into consideration as you shop for it.
1. Determine the number of devices you want to run
One of the essential factors to consider is the maximum number of devices or fixtures you want to run as well as their overall flow rate. The next thing to do is sum up all of their flow rates.
This is considered as the preferred flow rate you will need for the demand-type water heater. For instance, let’s say you intend to use 2.6 GPM flow rate for a shower plus 0.75 GPM flow rate for a faucet all at once, the unit should have a 3.26 GPM at the minimum.
If you want to lessen the flow rates, installing low-flow water equipment is a good idea.
2. Determine required temperature rise
Another important thing to do before you buy a tankless water heater is determine the needed temperature rise. In order to do this, you need to deduct the incoming temperature from the preferred output temperature.
For instance, the approaching water has a temperature of 50 degrees F. By utilizing a low temperature appropriation, this won’t undersize your tankless water heater unit.
However, if you have a warm climate in your area, the temperature of your water will likely be much higher.
3. Know needed flow rates
If you are planning to buy a water heater, it would be helpful to ask yourself how much hot water you need at one time. It is important to determine your total simultaneous water needs.
Do you need to run a shower and a couple sinks or 2 showers at the same time?
The average flow rate for a shower is 2.5 GPM, 2.0 GPM for a washing machine, 1.0 GPM for a bathroom, 1.5 GPM for a kitchen sink, 4.0 GPM for a tub, and 1.5 GPM for a dishwasher.
If you need to run 2 showers at the same time, this requires 5 gallons of water every minute from your water heater. On the other hand, you need 4.5 GPM from your water heater if you run a washing machine and a shower at the same time.
The bottomline is, the flow rates of your tankless water heater depend on the volume of hot water you need.
4. Determine the tankless water heater fuel type you need
A tankless water heater is energy efficient equipment for your home. With all the different models and sizes of water heaters on the market, one of the key factors to consider before making a purchase is the fuel type of the equipment.
There are usually two options for you. The first one is natural gas while the other is electric. If you want to choose natural gas, it is necessary to make sure that the gas supply line will be able to support the new water heater you have.
There are possibilities that your old water heater line may not be sufficient. Moreover, there is a need to check if you have proper venting for your new gas tankless water heater.
On the other hand, if you decide to go for an electric water heater, ensure that there is a proper voltage outlet and a circuit. Also, make sure that your home is able to support the amperage draw of the water heater.
5. Read customer reviews
According to statistics, 90 percent of consumers read customer reviews online before making a purchase. More than 80 percent of consumers rely on these reviews just like personal recommendations.
The internet has become a place where you can be influenced on how to conduct business with companies and manufacturers.
If you want to choose the best tankless water heater, it is advisable to read online customer reviews first to see what people say about a specific brand or model. In most cases, customer reviews and testimonials can help you determine the good and bad things about a product.
If you were to shop for a tankless water heater and have a specific brand in mind, you can search for reviews about the product. This way, you will learn how it works, its list of features and advantages, the accessories included in the package, and other significant details about the water heater.
If you are unsure about a certain brand or model, you can make a research and read customer reviews about the product.
A Final Thought
If you choose a high performance tankless water heater, you’ll never have to worry about your hot water needs again. Keep in mind that the best tankless water heater in 2020 is equipped with the necessary features and specifications yet affordably priced.
If you are on a tight budget, you can select from a wide selection of reasonably priced tankless water heaters. Just make sure you do not compromise quality.
With the information you have learned from this buying guide, you’ll be able to make a wise decision before making a purchase. Good luck!