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The Best Tankless Water Heater Canada [Electric & Gas] Tested in 2023

The Best Tankless Water Heater in Canada Buying Guides

If you are in the market for the best tankless water heater Canada, you may be wondering if a tankless model is right for you. Tankless water heaters have become increasingly popular in recent years, thanks to their energy efficiency and flexibility. But before you buy one, it’s important to do your research and find the best model for your needs. 

Tankless water heaters can provide a number of benefits over traditional models. For starters, they are much more energy-efficient, which can save you money on your utility bills in the long.

Best Tankless Water Heater Canada
Gas tankless water heater

To help you out, we have compiled some of the best tankless water heater canada from around the web. So read on to learn more about these popular appliances and find the perfect one for your home!

Top Rated Tankless Water Heater in Canada Compared

What You Can Do With A Tankless Water Heater?

There are two main ways to do with the best tankless water heater canada.

Provide hot water for your house

A tankless water heater can handle running 40 showers at one time.  Traditional tanks would become overwhelmed with the amount of hot water being used if everyone decided to have a long shower, but that won’t happen with these systems.  A tankless system does not use a large storage tank in the house to hold hot water, which means that it is not able to keep enough storage to supply the entire home at one time.

Provide hot water portably

A tankless water heater provides hot water portably, so it can be used anywhere you go. It heats the water as soon as it passes through the device, making it unnecessary to store hot water in a tank. Portable models tend to be smaller than other types of water heaters, so they are not able to provide as much hot water at once. They are also more expensive to operate than other types of water heaters.

Top Picks The 10 Best Tankless Water Heater Canada in 2023

Here are the top-rated tankless water heaters in Canada reviews to buy.

Top 1. RINNAI ‎RU199iN Tankless Hot Water Heater

Best Tankless Water Heater Canada
RINNAI Ru Series Sensei Se

The RINNAI RU199iN Tankless Water Heater is the best tankless water heater Canada for home. This is a fantastic way to reduce electricity while maintaining high efficiency. The heating element of this tankless water heater is covered by a 12-year warranty, ensuring that you may use it for a long period.

A device that is placed on the wall is highly convenient and saves a lot of room. ThermaCirc360 Technology is integrated into the device, making each hot water delivery faster than previously. You can easily provide hot water for your bathroom, kitchen, and laundry area with just one unit. This is also the best natural gas tankless water heater Canada, allowing it to produce fewer dangerous compounds while in use.

The ventilation system, which includes concentric and PVC vents, is well matched to keep air consumption low and products safe. With Logic Technology, you can program it to match your daily routine, ensuring that hot water is always available when you need it.


  • Logic Technology programs it to match your daily routine
  • Concentric and PVC vents
  • Save space
  • Save energy


  • Expensive

Top 2. Stiebel Eltron ‎239222 Tankless Water Heater 

Best Tankless Water Heater Canada
Stiebel Eltron Tankless Water Heater

The Stiebel Eltron 239222 is a fantastic way to save a lot of room. This product is relatively small and does not take up much space when mounted on the wall. It comes in a lovely white tone that complements any room. With its incredibly fast boiling water source, it can offer hot water for the entire home, including bathrooms, kitchens, and laundry rooms, despite its modest size.

Because it has the ability to self-regulate and measure the amount of water electronically, it is also an extremely environmentally friendly device that saves the most energy. This appliance ensures that your hot water supply is never interrupted. This Tempra 24 plus product also has water levels that range from 86 to 140 degrees Fahrenheit. The product’s warranty is also quite substantial, lasting up to 7 years.

The Stiebel Eltron 239222 is a very simple device to use. The water heater’s electronic flow sensor is incredibly sensitive, and the interior heating system is solid copper. This product is entirely silent when in use. For your convenience, it also contains a display that indicates the temperature parameters and pre-set heating operations.


  • Compact design
  • Ability to self-regulate and measure the amount of water electronically
  • 7-year warranty
  • Save energy
  • The water heater’s electronic flow sensor is incredibly sensitive
  • Temperature parameters and pre-set heating 


  • The flow sensor doesn’t work too well

Top 3. Camplux ‎CA318W-NG Natural Gas Tankless Water Heater

Best Tankless Water Heater Canada
Camplux Tankless Water Heater 

The Camplux CA318W-NG Tankless Water Heater has a stylish design. It is available in white, which is a very modern color that will go with any apartment. The body’s circular LED touch screen is stylish, sophisticated, and incredibly easy to use. When this machine is mounted on the wall, it looks fairly stylish without being too large.

The Camplux CA318W-NG is ideal for households with two to three persons. It only produces 3.18 gallons per minute, which isn’t a lot, thus it’s better for small families. The temperature of the water will always be between 95 and 149 degrees Fahrenheit. For up to 90% heating efficiency, the product contains an integrated oxygen-free copper heat exchanger and stainless steel burner.

The vent pipe, in particular, allows it to quickly discharge any remaining air. The product only consumes 42 watts and 0.35 amps at a time, allowing it to save energy. Because of its safety features, such as safety shut-off protection when running out of oxygen, anti-freeze protection, and an explosion-proof device, you can use this product with total confidence. You simply need one touch with an exceptionally simple touch screen to increase or reduce the temperature.


  • Modern and stylish design
  • Shut-off protection when running out of oxygen
  • Anti-freeze protection
  • An explosion-proof device
  • Save energy
  • 90% heating efficiency


  • Only suitable with small family

Top 4. Ecosmart ECO27 Electric Tankless Water Heater

The Ecosmart ECO27 is the best electric tankless water heater Canada, and it’s a fantastic option for people searching for a cost-effective and dependable tankless water heater. It has a small footprint and can be mounted on the wall, which is a wonderful way to save room. It is not as large as tankless water heaters, but rather looks like a small box mounted on the wall.

The Ecosmart ECO27 Electric Tankless Water Heater will save you money on energy. The ECO27 is a 27-kilowatt tankless water heater with a capacity of 2.7 to 6.5 gallons per minute at 95 degrees Fahrenheit and 1.5 gallons per minute at 190 degrees Fahrenheit. It’s also ENERGY STAR certified, with an Energy Factor of 0.94, making it one of the most energy-efficient tankless water heaters available today.

This product has a trendy white color and a tiny apartment-friendly design. It’ll last a long time because it’s made of stainless steel. With temperature settings directly on the body, this device is very simple to operate. The ECO27 comes with a five-year warranty, so you can be assured that you will be able to use it for a long time.


  • Trendy white color and a tiny apartment-friendly design
  • A five-year warranty
  • Cost-effective and dependable
  • A capacity of 2.7 to 6.5 gallons per minute
  • Save space and energy


  • The machine may leak water after a long time of use

Top 5. Rheem ‎RTEX-18 Residential Tankless Water Heater

The Rheem RTEX-18 Tankless Water Heater has a timeless style that can fit into any home. It’s a simple water heater that offers endless hot water for all of your home needs. When put on the wall, it features a small design that is not too bulky. It’s made of tough stainless steel that’s both strong and easy to clean.

The RTEX-18 is a contemporary model that is classified as an outdoor tankless water heater for residential usage. It has an energy factor (EF) of 0.82, which implies it uses less energy than most typical storage tanks, but not as much as the RTG-64XLN or RTG-95XLN. This machine can constantly produce 4.4 gallons per minute at its peak flow rate, with a maximum temperature rise of 105 degrees Fahrenheit.

This is sufficient for most homes with normal hot water requirements. The product is also incredibly user-friendly. You can set the temperature you want with just one knob. The temperature you select is also displayed on the LED display. Rheem also provides a variety of alternative models, including ones with built-in pumps and varying degrees of power output, which may be more suited to houses with low water pressure.


  • Produce 4.4 gallons per minute
  • Easy to use
  • A maximum temperature rise of 105 degrees Fahrenheit
  • Convenient LED display
  • Compact design 


  • Water pipes sometimes leak

Top 6. Camplux ‎CM264 Propane Tankless Water Heater for Shower

The Camplux CM264 Tankless Water Heater is no exception to Camplux’s reputation for producing the best propane tankless water heater Canada. The Camplux CM264, like other Camplux items, has a very attractive design. It’s a sleek white input box that mounts to the wall and maximizes your space.

This tankless water heater has a capacity of 2.64 gallons per minute, guaranteeing that your little residence has constant hot water. With 6-in-1 multi-function protection, including anti-freeze, fire, airflow pressure switch protection, overheating protection, and ignition system safety, this product is exceptionally safe to use. The horizontal vent also guarantees that the product is properly ventilated.

This product is also rather straightforward to use. It contains an LED panel that displays the current water temperature. It also features two knobs that may be used to fine-tune the temperature of the water. The water adjustment process is also faster and more energy-efficient than ever before thanks to the Eco and Full gas controls.


  • Modern and compact design
  • An LED panel that displays the current water temperature
  • Eco and Full gas controls
  • 6-in-1 multi-function protection
  • A capacity of 2.64 gallons per minute


  • Must constantly adjust the temperature

Top 7. Camplux ‎CA318 Indoor Propane Gas Tankless Water Heater for 2-3 Persons Bathroom

Camplux is a well-known tankless water heater manufacturer. Their propane-powered variants, such as the Camplux CA318 Tankless Water Heater, are particularly popular because they combine the benefits of tankless water heating with the flexibility of using a portable fuel source. It has a trendy black hue and a very elegant design. The attractive LED touch screen is easy to clean with the unique glass surface.

This best tankless water heater canada has a very large capacity of 3.28 gallons per minute, which is enough to suit the needs of a family of 2 to 3 people for continuous water use. You may use Camplux CA318 with great confidence because it is extremely safe and includes numerous essential security measures. Anti-freeze prevention, overheating protection, and child-safe locking technology are among the features.

This tankless water heater’s touch panel also allows you to easily regulate the temperature with just one touch. The temperature is displayed on the LED display for better control. You have entire control over the temperature, which ranges from 95 to 149 degrees Fahrenheit. During operation, it uses only 42 watts and 0.35 amps, which is a terrific method to save energy.


  • An elegant design
  • The attractive LED touch screen is easy to clean with a unique glass surface
  • A very large capacity of 3.28 gallons per minute
  • Safe with numerous essential security measures
  • Save energy 


  • Sometimes water leaks

Top 8. Bosch ‎ES8 Wall or Floor Mounted Electric Mini Tank Water Heater

The Bosch ES8 Electric Mini-Tank Water Heater is the best electric tankless water heater canada has to offer with the top rating on Amazon. The Bosch ES8 electric mini-tank water heater is a wonderful alternative for individuals searching for a low-cost, high-efficiency water heater. This water heater is ideal for tiny homes or apartments since it can fit under cupboards or in tight locations. It is an excellent choice for people looking to save money on their energy expenses.

The ES8 provides quick and steady heating, allowing you to quickly heat your water. It also has a self-cleaning system that keeps the machine running smoothly. It also comes with a two-year warranty, so you know you’re getting a high-quality item. With a 7-gallon capacity, this little tank can quickly meet your water requirements.

It may be installed immediately beneath the sink and used whenever you need it. With a temperature range of 65 to 145 degrees F and two Max and Min settings, you may manually change the temperature with the knob. This product, despite its low price, lacks an LED temperature display like other tankless water heaters, which is also a drawback.


  • Low-cost and high-efficiency water heater
  • A two-year warranty
  • A 7-gallon capacity
  • Quick and steady heating
  • Can fit under cupboards or in tight locations


  • Small capacity
  • Lack an LED temperature display

Top 9. Gasland ‎BE158B Outdoor Portable Gas Water Heater

The best gas tankless water heater Canada is the Gasland BE158B, which is incredibly convenient and portable. It’s an excellent option for folks who need hot water when they’re not at home, camping, or in the automobile. With a minimalist but modern black tone, this device features a rather compact shape. It also has a handle to make it easier for you to maneuver.

It also has a shower, which is incredibly useful. It also comes with a wire that you may use to connect to the throttle valve. You can use the handle to hang the goods up high for simpler use when you take it out. Its 1.58 liters of hot water per minute may be delivered continuously. With a flame retardant, anti-freeze, and over-temperature protection, this product is exceptionally safe to use.


  • Compact and portable
  • 1.58 liters of hot water per minute may be delivered
  • A flame retardant
  • Anti-freeze
  • Over-temperature protection


  • Max temperature is not too high

Top 10.‎ Gasland ‎BE158R Outdoors Portable Gas Water Heater

The Gasland BE158R Tankless Water Heater is comparable to the Gasland BE158B Tankless Water Heater in that they are both incredibly convenient gas tankless water heaters. These two devices have a similar design, however the Gasland BE158R has a vibrant red tone. The best gas tankless water heater canada is small, easy to transport, and does not take up a lot of room. It features a hook on the back so you can hold it while on the road or hang it up high for easy access.

The shower and a valve that connects to the gas tank are included in the package. As a result, you may go out and play, go camping, or organize outdoor activities without worrying about running out of water. The Gasland BE158R Tankless Water Heater provides 1.58 gallons of water every minute, ensuring that your demands are met on a consistent basis. Advanced combustion technology allows you to save as much energy as possible.


  • Compact and portable
  • Can deliver 1.58 gallons of hot water per minute
  • A flame retardant
  • Advanced combustion technology
  • Over-temperature protection


  • Max temperature is not too high

Factors to Consider When Buying The Best Tankless Water Heater Canada

There are many factors to choose the best tankless water heaters in Canada.

  1. Brands

Rinnai is one of the most well-known tankless water heater manufacturers. They offer many standard-sized units to choose from, but if you are looking for best tankless water heater canada that will fit your specific needs, they also allow you to customize the unit by choosing the exterior color and even which water connections you need on it so that it works with your plumbing system. Products from the Camplux brand are diverse and quality, so you should not ignore this brand.

2. Energy Factor levels

Tankless water heaters can be as low as 86% energy efficient, but some newer models have up to 97% efficiency. Even if you live in an area that is known for relatively high utility rates, the extra money you will save by buying a more efficient unit will easily pay for itself over time.

3. Capacity

If you have a large family, then perhaps an 80-gallon unit would be right for you. If not, then a smaller tankless heater might still be enough to meet your needs. Some of the larger models can even hold over 100 gallons of water at a time and with one quick press of a button you can have as much as 40 gallons of piping hot water at your fingertips.

4. Saved space

Tankless units are typically very small and take up almost no space at all. If you live in a tiny apartment or even just don’t have the extra room to spare, consider getting one of these units and freeing up some space.

5. Energy Efficient

Since tankless heaters use electricity, the more efficient they are, the less money you will need to spend on your monthly utility bills. You can easily find out how much an electric model would cost you to run by multiplying its kilowatts per hour (kWh) by your expected rate of usage.

What Is a Tankless Water Heater?

best tankless water heater canada

Simply put, a tankless water heater is an electric appliance that heats and stores hot water and provides it on demand. It operates much like a traditional storage tank-based water heater but doesn’t use up valuable floor space or require additional venting, making it the perfect choice for most homes. 

A tankless water heater provides a continuous supply of hot water by generating and storing heat when energy is in surplus, such as when the sun is shining on a solar-powered home. During colder periods, when energy is in deficit, tankless water heaters use stored energy to meet the demand for hot water.

What Types Of The Tankless Water Heater?

There are several types of tankless heaters that have different heating methods, different capacities, and work in different conditions. The heating methods for tankless heaters include natural gas, gas, solar power, and electric resistance. 

Best Tankless Water Heater Canada

Natural gas

A natural gas tankless water heater is a device that heats, stores, and distributes hot water in a household or office building. It is installed at the point of use; it is a more energy-efficient alternative to a boiler system because its smaller size allows it to be located closer to where the hot water will be used rather than storing hot water in a tank.


A gas tankless water heater is a type of plumbing appliance that heats and stores unlimited amounts of hot water until it is needed, instead of heating water only as it passes through the machine via a pipe. In terms of space efficiency, there are three main types: condensing tankless water heaters, indirect-fired tankless water heaters, and direct-fired tankless water heaters.

Solar power

This solar-powered tankless water heater uses a unique combination of both solar and natural gas power to provide a virtually unlimited stream of hot water. The unit can be used both indoors and outdoors. Equipped with two heat exchangers, the unit is able to simultaneously provide extremely hot water, while also preheating domestic cold water. 

Electric resistance

Electric tankless water heaters or simply an electric on-demand water heater or a tankless coil is a device that heats the water to its boiling point in order to provide hot water in homes and businesses. Electric on-demand, also known as the tankless coil is a piece of equipment in which it helps in providing the user with hot water when they need it. 

How Does A Tankless Water Heater Work?

Tankless water heaters use a gas burner, an electric heating element, or another heat-exchange system to heat water and convert it into steam or hot vapor. Heat is stored in insulated tanks and used as needed to keep the heated items – such as showers, sinks, and washing machines – at the desired temperature.

Take, for instance, a family of four that uses 40 gallons of hot water per day. A traditional storage tank-type heater can only hold up to 55 gallons, leaving the family with either cold showers or an inconvenient “wait” for hot water in the morning when they need it most. A tankless heater, on the other hand, heats any amount of water instantly and constantly.

Advantages of the Best Tankless Water Heater

Here are the top three advantages of owning a tankless water heater:

Hot water is available

A greater volume of hot water is available immediately when you need it. Tankless heaters provide an endless supply of hot water which means no more running out of hot water at inconvenient times. They output an endless amount of constant hot water, which allows you to take more time in the shower or just enjoy more hot water without having that feeling of being scalded.

Save on energy costs

A tankless water heater saves on energy costs. When compared with storage-type heaters, they are generally about 20% more efficient (however this will obviously depend on how much you use your water).

Last longer

Tankless heaters last longer. The hot water is constantly circulating and there is little opportunity for the minerals and sediment to accumulate on the bottom of a tank or inside pipe walls, which can cause corrosion and potential leaks. Also, since they heat water as it passes through instead of heating it in a tank, you use less energy and the heater works more efficiently.

How To Use A Tankless Water Heater Step By Step?

If you need to know how to use a tankless water heater, here are some helpful steps:

1. Check the supply of power to the device by locating its circuit breaker. 

2. Open up all faucets throughout your house or apartment, ensuring that all water is turned off beforehand. Turn on each individual faucet until water flows freely from them. Do not run any showers during this step, as there are some units that cannot handle the increased strain on them.

3. Check that both of your hot and cold water lines are turned all the way up, this step is located on each individual faucet.

4. Make sure you have read through all safety warnings, as water heating can be dangerous if not handled correctly. 

5. Cycle the power to the device on and off three times. This will clear any air out of your system, preventing noise and other malfunctions from occurring.

6. Open up the cold water line to check for consistent pressure throughout, this step can also be done to flush debris from the lines. If you notice a great deal of fluctuation in the pressure, call your local service center for assistance. 

7. Check both the hot and cold water lines to ensure that they are not leaking or dripping, if any leaks or drips are present it will be necessary to call in professional help.

8. Enjoy your new tankless water heater! Remember that you should regularly check on your unit every few months to ensure that the performance of the device is not hindered.

How to Install a Tankless Water Heater 

Frequently Asked Questions (

To acquire the most valuable information about the best tankless water heater Canada, follow the commonly asked questions.

  1. How to maintain a tankless water heater last longer?

Maintaining a tankless water heater is much easier than expected. Once you’ve installed one, there are a few things to keep in mind and do during the life of your unit.

Step 1: Protect your investment by using a water softener. Hard water, which is rich in calcium and magnesium, can collect inside the unit. This causes mineral buildup that will lead to problems such as reduced heat output and poor efficiency. A water softener solves this problem and prolongs the life of the unit.

Step 2: Protect your investment by using a hot water recirculation system. A hot water recirculation pump is installed in the home’s plumbing and works as an automatic washer-dispenser. It pumps heated water from the main tank and distributes it to any tap or faucet that needs it.

2. What are the disadvantages of using a tankless water heater?

Despite the convenience and efficiency associated with these appliances, they do have some notable disadvantages.

  • Less Hot Water Available: Tankless water heaters only provide hot water when you need it; however, if several people are showering or using other hot water appliances, then there may not be enough available for everyone. Make sure your tankless water heater is large enough to meet the demands of your household.
  • Higher Initial Costs: While tankless water heaters do save money over time because they don’t need to reheat old water, it can be a pricey investment. Also, installation costs can be high. If you’re looking to save money on your water heating bills, then a tank model is more affordable in the long run despite the higher monthly payments.
  • Inability to Use Appliances at the Same Time: Tankless water heaters don’t have enough capacity to power appliances at the same time. For instance, you won’t be able to run your dishwasher and take a shower at the same time; however, gas-powered tank water heaters can usually handle these tasks simultaneously.
  • Decreased Resale Value: Although some home buyers like tankless water heaters for their convenience and efficiency, others find them irritating because they cannot run several hot water appliances simultaneously. If you sell your home, then tankless water heaters may be a deterrent to potential buyers.

3. How do you get the sediment out of a tankless water heater?

Every water heater needs to be drained and flushed at least once a year, but did you know that every time you flush the toilet or run a load of laundry in your washing machine, sediment is also getting trapped in your tankless water heater?

Sediment can clog up the heating chamber, making it harder for heaters to efficiently transfer that heat into your water. This can be a problem because that won’t just cause your heater to work harder, it will also make the heater less efficient and not last as long.

To reduce problems like this you should get in the habit of draining and flushing your tankless water heater every three months or so. It’s easy to do, and if you follow the step-by-step instructions below it won’t cost you anything.

Note that this article is not intended for tankless water heaters with electric ignition. If your heater has an electric ignition switch, then you need to get in touch with a plumber. Electric ignition units require specific care, detailed knowledge of electricity and gas, and safety precautions.

4. Do tankless water heaters heat water instantly?

Tankless water heaters do not heat the water instantly. Depending on the model you purchase and its installation location, it can take anywhere from a few seconds to several minutes for the hot water to flow out of your faucets when using a tankless water heater.

Tankless water heaters heat the water on demand. That means that when you open a hot water faucet, cold water enters the tankless appliance and it heats that water to your desired temperature within 1-2 seconds. The unit continues to supply hot water until either the inlet or outlet temperatures reach an unacceptably low level. At this point, the unit shuts down until the inlet temperature rises again to an acceptable level.

Conclusion about best tankless water heater canada

Choosing the best tankless water heater Canada is not an easy task. There are a lot of factors to consider, such as heat output and installation type. The more information you gather about your needs and preferences, the easier it will be to find the perfect match for your home or business!

In this article, we reviewed the top ten of the best tankless water heaters in Canada on the market. We also highlighted some key features to look for in a great unit and gave you an overview of what sets it apart from a traditional storage-tank heater. If you’re looking for a new system that will help conserve energy and save money on your utility bills, then one of these models might be perfect for your needs. The decision is ultimately yours but hopefully, our reviews have helped make things more clear!

Suggested in detail, if you are looking for the best natural gas tankless water heater Canada, RINNAI ‎RU199iN is the perfect choice for you, which is highly convenient and saves a lot of room. Besides, Gasland ‎BE158B is the best gas tankless water heater Canada that you should not miss with a secure design, portability, and an extremely affordable price tag!


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