The Best Tankless Water Heaters In Canada 2021 – Review & Guide

10 Best Tankless Water Heaters In Canada - Review & Guide

Tankless water heaters are incredibly handy for use in your home, cabin or vacation home, RV, camper, or wherever else you are looking to use hot water. They are far more space-saving than standard tank heaters, as they heat the water directly as it flows into them. Whenever you need hot water, you just turn on your tap to enable cold water to flow through the tankless water heater, which heats it using either propane gas or an electric element.

The best tankless water heaters in Canada are designed with efficiency and cost-effectiveness in mind. They can be used whenever you need a continuous supply of hot water, providing between 2 and 5 gallons per 60 seconds of use. You can install separate tankless water heaters in various locations around your home for extra convenience. This review offers an in-depth look into the best tankless water heaters available to buy online in Canada today.

30-Second Review

Our choice for the best tankless water heater in Canada is the Eccotemp L10 Tankless Water Heater. With a 74,500 BTU rating, the Eccotemp is weatherproof and durable, making it ideal for installing outside for outdoor shower use, camping and animal bathing. It has auto-shutoff after 20 minutes for safety, and a battery-powered ignition that makes it perfect for on-the-go use. The simple set-up means you will not have to fuss around with the boring stuff if you are looking for a quick fix, and the system can be hung or mounted for use with a shower or hose. The Eccotemp comes with a range of additional tools and add-ons that may come in useful, including a 9′ CSA approved gas regulator and hose that can be used on a standard 20-pound grill style tank, a stainless steel rain cap, and a half-inch NPT to garden hose adapter.

NameTypeGPM (Gallons Per Minute) Flow Temperature Range
1. Eccotemp L10 Tankless Water Heater (Best Overall)Propane gas2.6 GPM80°-165° Fahrenheit
2. Camplux 10L Tankless Water HeaterPropane gas2.64 GPM60°-120° Fahrenheit
3. Camplux 5L Tankless Water HeaterPropane gas1.32 GPM46.4°-114.8° Fahrenheit
4. Eccotemp 2.5 Gallon Mini Tank Water HeaterElectric2.5 GPM50°-140° Fahrenheit
5. EcoSmart ECO 11 Tankless Water HeaterElectric1.5 GPM80°-140° Fahrenheit

Why Invest In A Tankless Water Heater?

Continuous Supply Of Hot Water

If you need a water heater for showering or filling up a hot tub, you will never have to deal with hot water running out when using a tankless water heater. Providing you have access to an endless supply of cold water, this water will be heated up by your tank and sent through a hose or showerhead at a consistent rate.

Space Saving

Tankless water heaters take up less space than a standard water heater with a tank, which makes them better for use in smaller homes or RVs. There is no need to make room for a whole storage tank; just the actual heating device itself.

A Return On Your Investment

It takes roughly between 3 and 6 years to see a return on your investment with a tankless water heater, depending on the price of the heater itself and your water usage. The best tankless water heaters in Canada use no energy unless you are switching on a faucet with the aim of using hot water, so the less you use your water, the more money you will be able to save in the long run.

Help You Save Money

Many people switch to a tankless water heater because it can help them to save money in the long run. Tank-style heaters cost money just to keep the water in the tank warm, while tankless systems only heat the water that is flowing straight to your faucet or shower. This means you are not wasting money from keeping your water warm while you might not even be at home.

Prevent You From Running Out Of Water

The worst thing about a tank-style water heater is that it has a limited holding capacity for hot water, which means that once the tank runs out, you are going to be left showering or washing your hands in cold water. You can overcome this shortage by investing in a tankless water heater, which will never run cold when you do not want it to.

Best Tankless Water Heaters Canada 2021 Reviewed

1. Eccotemp L10 Tankless Water Heater

Eccotemp L10 High Capacity Outdoor Tankless Water HeaterThe Eccotemp L10 tankless water heater is an easy-install outdoor water heater that provides an endless supply of hot water to a home, RV, or vacation property. It delivers up to 2.65 gallons of hot water per minute, which can be adjusted between 80 and 165-degrees Fahrenheit and can provide enough hot water to support two appliances running at the same time. With a 2D battery cell ignition, the heating functions start only when the water is running, helping to save energy and providing a handy solution for areas with less electricity.

The Eccotemp is fully portable, so you do not necessarily need to connect it up to your home for use. This means you can take it with you on camping trips or to locations where you can connect to a portable water supply. The unit is ideal for showering animals, outdoor showers, and camping use, as it can be connected to any showerhead or hose, and can be used up to 5,500 feet elevation. It also comes with a handy rain cap, plus a regulator and installation accessories. You can purchase the manufacturer’s recommended showerhead or hose with the unit at a separate cost.

  • Very easy to set up
  • Can be used with a range of hoses and showerheads
  • Heats water very quickly
  • Automatic shut-off timer after 20 minutes that may prove a nuisance to some users.

See Price At Amazon

2. Camplux 10L Tankless Water Heater

Camplux 10L 2.64GPM Outdoor Portable Propane Tankless Water Heater

The Camplux 10L 2.64GPM Outdoor Portable Propane Tankless Water Heater is a tankless water heater for use in all seasons. The unit has a summer/winter switch function that lets you choose between full or eco use, helping you to save more gas in the warmer months. With a compact and lightweight structure, the heater is designed to save 11.5% of energy during use. It has a maximum power output of 68,000 BTU, providing instant and endless hot water whenever and wherever you need it.

You can take the Camplux on vacation, to summer houses, cabins or RVs. It is safer to mount outdoors, but it can also be mounted indoors with an additional flue pipe is installed for ventilation. The unit can be turned on with 2 “D” batteries when electricity is inaccessible, which is handy for situations like camping and remote hiking. You need a minimum of 0.4PSI to operate the heater, and a shower house, gas hose, gas inlet connector and shower head all come as part of the price of the unit.

  • Summer/winter setting to help you save fuel in the summer
  • Heats water very quickly
  • Adjustable water flow for convenience
  • Not waterproof and does not include a rain cap, so it can not be left outside in the rain

See Price At Amazon

3. Camplux 5L Tankless Water Heater

Camplux 5L 1.32 GPM Outdoor Portable Propane Tankless Water Heater

The Camplux 5L 1.32 GPM Outdoor Portable Propane Tankless Water Heater is a smaller portable tankless water heater for showering, washing pets or cars, and any other situation where you need hot water away from home. It can be used at campsites, cabins, or in your own home for a quick, convenient supply of hot water. The ideal operating range for this heater is 0.3 to 110 PSI, so even homes with lower water pressures can benefit from the Camplux. With 2D batteries included, you can use the heater in locations that are off the grid and may not have an accessible electricity supply.

Temperature can be adjusted from 46.4-degrees Fahrenheit to 114.8-degrees Fahrenheit, allowing you to choose your perfect level of heat for the job. The portable handle makes it easy to temporarily set the heater up outdoors, and the anti-freezing protection stops the system from becoming damaged in winter weather. With an oxygen depletion sensor, the Camplux can also be installed indoors in well-ventilated areas. The system also works on modified water systems, providing you have a 12-volt water pump.

  • Broad temperature range to choose from
  • Smaller and lighter than other models
  • Battery-powered & can be used in places with no electricity
  • The plastic shower hose is not the best quality, and may not withstand heat from the water

See Price At Amazon

4. Eccotemp 2.5 Gallon Mini Tank Water Heater

Eccotemp EM-2.5 Electric 2.5 Gallon Mini Tank Water Heater, White

The Eccotemp EM-2.5 Electric 2.5 Gallon Mini Tank Water Heater is a lightweight, compact water heater that is floor and wall mountable. It has an adjustable temperature range from 50 to 140-degrees Fahrenheit and can hold 2.5 gallons of water at a time. Rather than being entirely tankless, the idea of the Eccotemp EM-2.5 is to hold smaller amounts of water that are used before the water is allowed to cool. You can easily access the temperature and pressure relief valve, which are on the top of the unit, and can help you to adjust the heater to suit your preferences.

You can use the Eccotemp in RVs, boats, office kitchens and kitchenettes for quick, convenient access to a small supply of hot water. The system has a recovery time of roughly 25-45 minutes, so it is better for appliances that do not need continuous use. The convenient thing about this heater is that you can take it with you and plug it in anywhere that has a 120-volt outlet plug, so there is no need to keep it fixed in one place. With a compact design, you can easily fit the Eccotemp into a small area underneath a sink, and all installation accessories are included for simple set-up.

  • Takes seconds to produce hot water
  • Noiseless while in use
  • Easy-adjust temperature from mild to very hot
  • No drain – if you want to drain water, you have to take the heater off the wall and do it manually

See Price At Amazon

5. EcoSmart ECO 11 Tankless Water Heater

EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology

The EcoSmart ECO 11 Electric Tankless Water Heater is an electric tankless heater that allows you to control your energy output to ensure optimal water heating. Ideal for a small apartment or smaller points of use, this tankless heater can heat 1.5 gallons of water per minute and works in weathers of 67-degrees Fahrenheit or above. It can handle between 2 and 3 appliances at once depending on the climate (warmer climates can handle 2 sinks and a shower, and cooler climates can handle 2 sinks simultaneously).

You can enjoy an endless supply of hot water with the EcoSmart, providing you do not need the hot water to run too many appliances at once. The heater only turns on when you actually need it, helping to cut down on heat and energy loss that can contribute to high monthly bills. With a sleek, wall-mounted design, the EcoSmart can be fitted onto a wall, helping to save space and free up floor space. You need a minimum 125-amp electrical panel for the EcoSmart to run.

  • Helps to save energy in the long run
  • Heats water for multiple appliances to use at once
  • Can be used in hotter and cooler regions
  • Smaller model; will not supply hot water to more than 3 appliances at once

See Price At Amazon

6. Marey Power GA10LP Tankless Water Heater

Marey Power GA10LP Propane Gas Tankless Water Heater 10L 1.5 GPM

The Marey Power GA10LP Propane Gas Tankless Water Heater is a tankless water heater that can be easily installed in almost any location. It heats an unlimited volume of water, so you can use it consistently for as long as you need it. As the unit does not require electricity to work, you can benefit from using it in homes that experience frequent power outages or do not have easy access to electricity. The unit comes with a full user manual and instructions for installation, enabling you to handle assembly and set-up yourself without having to call a plumber.

Activated by water pressure, the Marey heater can help you to save energy by only heating the water that you use. It is space-saving, so you do not need to dedicate an entire cupboard for storing it. At its optimum, it can provide 3.5 gallons of water per minute of use. It comes with a 2D cell battery and all the equipment and components you need to install it and put it to use right away.

  • Heats an unlimited volume of water
  • Only heats water that you use, immediately, helping to save energy
  • Compact and space-saving
  • Not as portable as other models

See Price At Amazon

7. GASLAND 10L Tankless Water Heater

Tankless Water Heater, Gasland BS264CA 2.64GPM 10L Gas Camping Water Heater, Portable Propane Water Heater Outdoor, Instant Hot Water Heaters for RV, Overheating Protection, Easy Installation

The GASLAND 10L Tankless Water Heater is a portable propane water heater with its own gas hose and 5-foot shower hose. Compact and lightweight, this unit is designed with advanced combustion technology, which decreases gas consumption and helps you to save energy. You can easily carry the heater with you on hikes, camping trips or visits to the beach, where you can quickly set it up and use it whenever you need it after a simple installation. The unit has anti-freezing protection to prevent damage from winter weather and also prevents water from heating past 167-degrees Fahrenheit during use.

With a maximum power output of 68,000 BTU per hour, the GASLAND heater provides instant hot water at your desired temperature. You only need low water pressure to start up – the unit will work on pressures as low as 3.6 PSI. The unit can produce 2.64 gallons of water per minute, so you will not need to deal with an annoying showerhead trickle or wait for the water to be produced. You can use the GASLAND heater in below-freezing temperatures, providing you empty out all of the water after each use to prevent internal damage.

  • Comes with a hose and showerhead
  • Produces instant hot water
  • Easy, quick set-up
  • You may need to purchase separate adaptors to use the heater in Canadian properties, as the fittings are not standard North American

See Price At Amazon

8. Camplux ME25 Mini Tank Water Heater

Camplux ME25 Mini Tank Electric Water Heater 2.5-Gallon, 9.5L,120 Volts

The Camplux ME25 Mini Tank Electric Water Heater is an electric water heater with a small 9-litre tank. Rather than heat water as you need it, this heater provides a small amount of heated water at one time, then refills the tank once empty and heats the next batch of water. This makes it more suitable for small homes or people who are looking to use a small supply of water at a time, such as for showering or washing. As an electric heater, the Camplux is easy to maintain and has a glass-lined tank for durability.

You can adjust hot water temperature using the unit’s built-in thermostat. Simply plug the unit into a 120-volt power outlet and ensure that your water pressure is below the maximum of 150 PSI for use. The device provides protection from overheating, so you can safely use it for hot water for as long as you need. It can be shelf or wall-mounted, or you can store it on the floor. The simplest installation method is to set it up underneath your preferred sink, tapping into the cold water line for easy-access water supply.

  • Lightweight and compact, ideal for small spaces
  • Provides hot water at your preferred temperature
  • Freeze protection prevents the heater from becoming damaged in colder months
  • The tank has a limited capacity, so you will have to wait for it to heat up another batch of hot water when you run out

See Price At Amazon

9. RINNAI Ru Series Sensei Se+ Tankless Water Heater

RINNAI Ru Series Sensei Se+ Tankless Hot Water Heater: Indoor Installation

The RINNAI Ru Series Sensei Se+ Tankless Hot Water Heater is a tankless heater with a flow rate of up to 11 gallons per minute. With this heater, you will not need to choose between appliances for using your hot water, because it produces enough water to be used in multiple appliances at once. It recirculates hot water through your pipes, giving you fast access to an unlimited water supply whenever you need it. With its compact design, you can install the heater even in non-conventional locations, like your attic, crawl space or closet.

As the RINNAI is tankless, you can save on your monthly energy bills as the heater will not need to keep a supply of hot water warm – it simply warms up the water as and when you need it. Every part of the heater is replicable, meaning you can easily buy components when it is time for new ones, rather than swapping out your whole heating system. It uses circ-logic technology, which lets you set recirculation patterns that match up to your day-to-day habits.

  • Provides an endless flow of hot water
  • Heats water up within 1 minute
  • Helps save on energy bills in the long run
  • May produce some condensation while heating water

See Price At Amazon

10. EcoSmart ECO 27 Tankless Water Heater

Ecosmart ECO 27 Electric Tankless Water Heater, 27 KW at 240 Volts with Patented Self Modulating Technology

The EcoSmart ECO 27 Electric Tankless Water Heater is a self-modulating 240-volt tankless water heater. It is one of the largest tankless heaters available with EcoSmart’s patented self-modulating technology, and is ideal for use in Canada and North America, or anywhere where incoming water temperatures are particularly low. The Eco 27 can heat up to 3 gallons per minute, even at a temperature as low as 37-degrees Fahrenheit. It can handle up to 2 showers running at the same time, and will not ever run out of water, so you can enjoy hot water for as long as you need it.

In warmer temperatures, the Eco 27 can handle up to 6 gallons of water per minute. It has a digital temperature control that allows you to set your temperature in 1-degree increments, between 80 and 140-degrees Fahrenheit. The unit produces an endless supply of hot water thanks to its tankless design and only heats the water that you need. Even this larger unit is slim enough to be mounted onto any wall in areas where space is limited.

  • One of the larger heaters on the market for producing more hot water immediately
  • Works safely in lower temperatures
  • Produces up to 6 gallons of water per minute
  • Slightly larger surface area may be difficult to install in smaller areas

See Price At Amazon

What Are Some Notable Aspects To Consider Before Buying A Tankless Water Heater?

What Are Some Notable Aspects To Consider Before Buying a Tankless Water Heater?

Gas Or Electric?

Most tankless water heaters run off some form of electric power, but their method of heating may be either gas or electric. Gas heaters will require topping up with propane gas every now and then, but they can be the more powerful option. Electric heaters use an electric heating element to heat water and are usually considered safer and more practical for everyday use inside a home. There is not much difference in price between the two, so it depends on your preferences.


Some of the best tankless water heaters in Canada run off batteries, which is convenient in a number of different ways. Though you will need to change the batteries from time to time, a battery allows a tankless heater to be fully portable. You do not need to connect it up to electricity for it to work, so you can use it in remote areas where electricity might not be readily available, such as in campsites.

Your Planned Usage

Your purpose for using your tankless water heater will ultimately determine which heater is for you. If you plan to use your heater in an RV, for example, you are best finding one that can easily be set up and put away between travel. If you just want a more energy-efficient water heater for your home, you may be better off looking for one that can be permanently mounted to a wall and will provide enough hot water to run several appliances at once.

Your Location

Not all tankless water heaters are designed for withstanding colder Canadian temperatures, so make sure that if you live in a location with particularly chilly winters, you check that a heater is suitable beforehand. Some of the better designs have anti-freeze technology, helping to protect the heater in colder temperatures. Others, however, will crack and freeze up when temperatures drop.

Ingoing Water Pressure

Many tankless water heaters will only work within a range of certain ingoing water pressure. This generally spans between 20 and 100 PSI, but some units can work with lower or higher water pressures. Systems that work with lower water pressure may be better for use with non-conventional water setups, such as in holiday cottages and campsites.


The days of wasting water and dealing with cold showers are long gone. The best tankless water heaters in Canada can provide you with hot water whenever you need it, at an unbeatable value for money. Many brands are selling tankless water heaters online, but doing your research and reading product guides like this one will help you to make the smartest purchasing decisions for your home and your family. The products mentioned in this guide are some of the most popular available in Canada right now.

James is a writer based in Ontario who has a background in IT. In his free time, he loves to travel, swim and make a positive difference in the world.
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