Tankless Water Heater Recommendations

Having a tankless water heater at home can help you in a lot of ways. More than providing hot water, this product can save you time, energy, and money. This is due to the fact that it only works and provides hot water when you need it to. Unlike traditional water heaters that store water in a tank which is heated and reheated every time you need hot water, which can cost time, energy, and can also add a lot to your electricity bill.

Tankless water heaters are now hitting the market at a high rate. You should also know how to reset a tankless water heater.There are lots of options to choose from since there are different models and each of them consists of different sizes, looks, colors, and features. If you want to buy a tankless water heater for your home but not quite sure how and what to choose, we will help you pick the best tankless water heater for your home.

Things to Consider

Before buying a tankless water heater, there are some important things and features that you need to look into first for you to be able to choose the best one. Here are some of them:


This is an important thing to look into with anything you buy. In fact, some people would choose to pay a bit more for longer-warranty models. A tankless water heater with longer-warranty usually has larger elements which can speed up water heating, plus it also has thicker insulation for less heat loss. Therefore, it’s best to choose the water heater with the longest warranty available.

Digital Display

It’s also great to find a tankless water heater that has a digital display to help you monitor the levels and customize its operation. There are other tankless water heaters that have a vacation mode feature. It allows you to set a vacation mode to your water heater which uses a heat pump for added efficient when you’re not home.

Flow Control

If you run more hot water than your tankless water heater can produce, it can either reduce the flow rate or drop the temperature. To prevent this, find a tankless water heater that offers flow control because it can ensure the first option where you want the majority of hot water to go. For example, you are showering while the dishwasher is also running. Showering in a warm but reduced amount of water is more preferable compared to being drenched in a full-flow ice bath.

High Energy Factor

Energy factor can measure the efficiency of the water heater. Electric tankless water heaters usually have energy factors between 0.96 to 0.99. Gas tankless options, on the other hand, ranges between 0.64 to 0.94. The higher the number, the more efficient the water heater is, and the more expensive as well.

The Best Tankless Water Heaters

Now that you know some of the things to look into when choosing a tankless water heater, we are now going to give you a list of the best ones we can recommend.

Where to Buy
Takagi K4 Tankless Water Heater
Rheem Professional Prestige
Stiebel Eltron Tempra Plus
Rinnai Ultra Series
Atmor Instant Water Heater
EcoSmart ECO 27
Bosch Tronic 3000
Westinghouse 11 GPM
Sio Green IR260
Camplux Portable Tankless Water Heater


1. Takagi K4 Tankless Water Heater

This tankless water heater is considered as the best one for mid-sized homes since it offers a mid-high GPM and a plenitude of customer support. This water heater can supply eight gallons of hot water per minute which is enough for two showers and a sink to run at the same time, even in cold season. This product also produces gas units which are capable of supplying more than 8 GPM, even with extremely cold water.

It also has an anti-freeze technology, so that the units can run smoothly through all seasons, and also a Hi-Limit switch which helps ensure that the water temperature stays within safe levels. Aside from that, this product has great customer support which will answer all your questions, within minutes of dialing.

2. Rheem Professional Prestige

This is another tankless water heater that is great for larger homes. It can generate hot water with maximum efficiency. It boasts one of the highest energy factors of all gas models at 0.96, which is above the expectations for gas efficiency.

It also has a condensing technology feature which prevents hot gas from escaping and reusing it instead to heat more water. However, this feature can cost more upfront, but if you think your household deserves a high flow rate, then having this feature ensures that every drop of the energy is going toward the hot water.

Aside from that, this water heater is also compatible with EcoNet Smart Home Technology. Meaning, you can turn it off even when you’re not at home. When you are on a vacation, just a tap from your phone can ensure you that your water heater isn’t producing hot water on its own.

3. Stiebel Eltron Tempra Plus

This tankless water heater is good for mid-sized homes and is considered as the reigning champ of electric water heating since it offers stellar technology, sleek design, and reliable service. It is also ultra-efficient, however, there are other manufacturers which can come close to this product in terms of GPM and energy efficiency. By being efficient, this product can save you a ton in your utility and electric bills over the life of the heater.

This product comes in a variety of other models, like Tempra and Tempra plus. They have the same six models: 12, 15, 20, 24, 29 and 36, where each one increases in power. Aside from that, you also won’t have to worry about where to put this tankless water heater because this model won’t take up much space due to its small size.

4. Rinnai Ultra Series

Tankless water heaters are known to be energy efficient but if you’re looking for one that can lower the running cost better, then this water heater is the best for you. This runs on natural gas which can help bring down energy bills. Aside from that, this water heater occupies less space.

The Rinnai Ultra Series has an energy rating of 0.95. It can provide a huge hot water flow rate from multiple faucets. However, this tankless water heater costs much higher compared to other models and it is kind of challenging to install. But it is a worth it investment especially when you always need a lot of hot water at home.

5. Atmor Instant Water Heater

This tankless water heater is best for smaller homes because of its compact size. It is easy to operate and can provide a considerable flow rate which suits its price. It is a user-friendly tankless water heater.

This water heater offers a 7-year warranty. It also has digital temperature control. Aside from that, it features a self-modulating technology which can help save energy as well. However, if you have a big house, the water flow rate of this tankless water heater will not be enough for your home.

6. EcoSmart ECO 27

If you want an efficient tankless water heater that can help you save a lot of money, then this one is perfect for you. Based on reviews, the EcoSmart ECO 27 tankless water heater can help save up to 50 percent off your normal water heating costs by using a simple and reliable electric design.

This water heater has a compact design that is small enough to fit in cramp and tight spaces around your home. It also features a digital control that will enable you to set and refine the temperature in one-degree increments to customize how hot you want the water to be. Aside from being energy efficient, this tankless water heater is also reliable and has easy to replace components.

7. Bosch Tronic 3000

If you’re looking for an efficient tankless water heater but you’re tight on budget, then this one can work great for you. It is a smaller option for point of use water heating and it is very simple to set up as well. Just plug its singer power cord into a standard wall outlet and it’s ready to be used.

The design of this tankless water heater is very compact and you can store it under the sink, in a cabinet, or even on the wall. It is a great option for heating water in small homes, boats, and outside kitchens.

8. Westinghouse 11 GPM

This is a gas-powered tankless water heater that can rival traditional storage heaters. It uses natural gas which can act more quickly, reducing your waiting time for the hot water. It has the capability of heating up to 11 gallons per minute. It also has dual stainless steel design that will resist corrosion and the usual wear and tear for longer life.

Even though you are using gas with this tankless water heater, it is still Energy Star certified and still enabling you to save money with an energy efficient design.

9. Sio Green IR260

Aside from heating your water efficiently, this tankless water heater can also help keep your water clean. It uses an infrared quartz element to heat the water. It avoids the natural metallic taste that other options can produce using metals like copper. It can keep the taste of water pure while achieving the same temperatures.

This product comes with built-in temperature control and maintenance-free design. Also, with infrared heating, water will never come in contact with the quartz element. This avoids corrosion that can wear down the inside of the heater.

10. Camplux Portable Tankless Water Heater

Aside from tankless water heaters for households, there are also portable ones which you can bring outdoors and the Camplux portable water heater is one of the best options. You can bring this portable tankless water heater when you camp or travel in an RV. It can heat 1.32 gallons of water per minute, making it a perfect choice for your outdoor needs.

This tankless water heater uses natural gas and it comes with all the connections you need to hook up a gas tank and cold water supply. It also comes with a shower hose and head if you want to bathe with hot water. Its onboard thermostat can be powered by a single pair of “D” cell batteries, allowing you to control the heater’s temperature from the heater itself.

There are varieties of tankless water heaters available in the market today, and each has its own unique and different features. We hope the products we shared will be able to help you find the perfect tankless water heater that will cater to your needs.