Best Tankless Water Heaters

Water heaters have been around for quite a while. However, one problem associated with them has always been the limited tank storage, which means you are continually running out of water. 

Ever thought of getting a tankless water heater? If you have, you are on the right page. We have reviewed the top models you should consider getting. 

Tankless Water Heater Reviews

Rinnai RL Series 

With enough technology to leave you impressed, the Rinnai is really good. 

Features of this product

  • Circ-Logic Technology: with the presence of this technology, things are made so much easier. This ensures re-circulation patterns. These patterns can be adjusted to suit your preferences. How awesome is that!
  • Warranty: it comes with a warranty of 12 years. This means that you have an extended period to use this product completely guaranteed. 

Why we like this product

  • With up to 9.4 GPM water flow, the hot water will feel amazing. 
  • The warranty will always add a bit of trust. We love the fact that there is a warranty that comes with the product. 
  • We love the fact that it can be used outdoors. This makes using it on your garden possible. 

What we don’t like about this product

  • While we love the outdoor suitability, the fact that it can be used only outdoors is limiting. 

Verdict and Rating

With excellent water flow and a warranty that keeps you smiling, this product is sure to serve you well. 4.9/5

Stiebel Eltron Tempra 

With the ability to set temperatures without fear of deviation, this model stays ahead of the pack. Its features can be described as simply remarkable. 

Features of this product

  • Weight: its shipping weight stands at just 21 pounds. You won’t get a model that is a lot lighter than this. 
  • Warranty: One of its best features is the warranty duration. With seven years warranty on leakage issues and a standard three years warranty, it is a product made in heaven.
  • Power: it packs an amazing punch with 36,000 watts and 240 volts. Simply amazing.

Why we like this product

  • We love its power. With its high performance, you can expect your water to stay heated for some time to come. 
  • We love the warranty it gives. It makes the product less risky to purchase. 
  • Of course, the fact that you can get an uninterrupted continuous flow of hot water makes us adore this product.
  • With substantial copper heating chambers, you are assured of durability at its highest.

What we don’t like about this product

  • The installation process can be a bit expensive. You might also face some issues with installation. 

Verdict and Rating

It’s a great product. We recommend this product. It’s a 4.8/5 for us. 

Rheem 240V 2 Heating Chambers 

The Rheem 240V is a super product. With features such as self-modulation, it takes the competition to the next level. 

Features of this product

  • LED display: it comes with an LED display that helps you regulate the thermostatic condition of the heater. This ensures that you have complete control at all times. 
  • Copper: with the use of copper immersion, you can expect durability at its peak.
  • Installation: the installation process is quite easy. This is made possible by NPT connections that are ¾ inches bottom

Why we like this product

  • We like the fact that this product is quite easy to install. This makes things so much easier in the long run. 
  • We like the light nature of this product. Weighing just 17.8 pounds, it is definitely easy to move from one place to another. 

What we don’t like about this product

  • Most customers have described this heater as a single faucet heater. This can make things a tad difficult for your plumbers. 

Verdict and Rating

Overall, this is a great product. We believe that you can achieve so much with this product by your side. 4.8/5 

EcoSmart ECO 

With a capacity of over 112.5 amps, you can be sure that the EcoSmart will live up to expectations. 

Features of this product

  • Digital Temperature Control: with remarkable temperature control thanks to the digital technology employed, working with this is amazing
  • Size: with the aim of making storage better, this is made to be compact. This ensures that storage is not a problem. 
  • Components: with copper and stainless steel being the principal materials used to make components, it maintains a high level of durability. 

Why we like this product

  • We love the fact that replacement is made easy with this product. It makes the replacement process seamlessly. 
  • We love the compact size of this product. It allows for storage capacities to accommodate it better
  • Heating costs are reduced even up to 50%. Stunning. 

What we don’t like about this product

  • Some customers have complained that it is very vulnerable to corrosion. Keep this in mind when getting this product.

Verdict and Rating

It’s a great product. The compact size makes things even better. 4.6/5.


This product promises instant and continuous hot water. Other features of this product make it quite remarkable. 

Features of the product

  • Touch Display: with a great design combined with a touch display, this product comes prepared to make your tasks so much easier. This product surely serves as an improvement in your home. 
  • Protection: if you are looking for a product that offers immense protection, this is your dream product. 

Why we like this product

  • We love the stainless steel, which is used in creating this heater. We believe that the material ensures durability.
  • We also love the fact that it can be mounted on the wall. 

What we don’t like about this product

  • The delivery date for this product can take up to three days. However, this should not be much of a problem. 

Verdict and Rating

It’s a good product at a modest price. With a rating of 4.5/5, we adore this product. 

Titan Tankless

With a 54 amps power capability and other great features, you are bound to enjoy using this product. 

Features of this product

  • Weighing just 7 pounds, it is definitely one of the lightest water heaters around. 
  • Color: it comes in white color. 

Why we like this product

  • We like the size of this heater. It makes it portable and easier to store. 
  • We like the performance level of this product depending on the task at hand.

What we don’t like about this product

  • With this product coming in one color, the options open to customers is quite limited. 
  • The installation process might prove to be a bit tricky. It’s preferably done by a plumber. 

Verdict and Rating

This product is simple and quite affordable. It might just suit you perfectly. 4.4/5

Marvey Power Gas 

Great price, and with the ability to work with low water pressure, the Marvey is a great buy. 

Features of this product

  • Compact Design: with a great design and compact size, the product is perfect for storage purposes and is very easy to install. 
  • Gas Powered: it is powered by gas. Hence, electricity has no hold on this product.
  • Durable: it maintains an 87% efficiency

Why we like this product

  • We like the price of this product. It’s perfect for someone on a budget. You will find using this product rather satisfying. 
  • It’s easy to install. The ease of operations is something that every product should have. 

What we don’t like about this product

  • Gas-powered appliances will always have limitations imposed on them. The use of gasoline is one inherent limitation. 

Verdict and Rating

Great price as earlier said. This combined with a high-efficiency level makes it a great product. 4.4/5

How to choose the right tankless water heater

Failing to get the right model can have a lot of implications. Topping this list will be the absence of hot water when you need it the most. 

Here are some of the most important things to consider before making a purchase decision. 

Know what you need

The first thing you have to know is to know what you want. The amount of hot water you need will really determine the particular product to get. 

So how can you find out what you need? We recommend making a mental note of every fixture you have that makes use of water. If a mental note is too hard, you can try writing it down. 

It is always important to consider the water flow that goes into each fixture. The principle is that an older fixture will normally take a much higher water flow. However, it is always best to add a little more water flow to your estimation.

Having a balanced idea of what is really needed is the first step to ensuring that you have the right model. 

Power Source

Of course, one of the main things you have to consider will be the power source. As you probably noticed from the products above, the electric source and gas-powered heaters are the most powerful. 

When using a model powered by electricity, one of the things you have to consider will be the pressure on your utility bill. Another thing to consider will be the scope of use. A Whole-house application will often pose a challenge. 

When using a gas-powered version, some of the things you have to consider will be the amount of gas that is needed to power your heater. You will also have to consider your gas supply lines and how effective it will b. 

However, a gas-powered heater is generally used for larger tasks. Electricity powered varieties usually have less power. 


Before you choose a particular product, you have to consider something very important. Maintenance. This will depend on the product you buy. 

We recommend that you keep this at the back of your mind when making a purchase. Also, having an eye on other things such as your warranty and the materials that are being used in creating the product. 

Having these factors in mind will help you make the right decision. 


What’s the advantage of having a tankless water heater?

One of the main advantages of this is you get to have continuous hot water. Thus, the problem of water cooling when stored in a tank is virtually gone. Another benefit is that you get to waste less water. That is a great bonus.

Conventional Water heater or Tankless?

It really depends on what you want. Nevertheless, the tankless models have some big advantages over the more conventional water heaters. 

One of them is water efficiency. A tankless product can save up to 30% energy when compared with the conventional models. 

While you make the final decision, these are some things you should have in mind. 

Can you run out of hot water with the tankless water heater?

While it can produce hot water continuously, it still has a vulnerability. That is the possibility of being overwhelmed with demand. 

For example, having more than a tap turned on can put on extra pressure. This can make it harder for it to function effectively. 

How long can you expect your tankless water heater to last?

Usually, a model that has been appropriately designed should last for at least two decades. Most of them come with warranties that cover the best part of a decade. 

This video will provide some tips that will help you use your product the right way:

Final Thoughts

We absolutely love all the products on display and feel that they are of the highest quality. However, the Rinnai RL series just tops our lists. With an amazing water flow, durable design, and a trusted warranty system, it cannot get better than that. 

We hope that you make a choice that you’d be proud of!