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Are Tankless Water Heaters Practical for Edmonton Homes?

Is your water tank heater coming to the end of its service life, and you’re wondering if you should make the switch to a tankless model? Or maybe you’re interested in learning more, but have heard conflicting information on whether they’re suitable for Edmonton homes. At Weiss-Johnson, we’re passionate about delivering exceptional HVAC service, along with ensuring homeowners have the knowledge they need. 


Below, we’ll cover key considerations to keep in mind, including tankless hot water heater maintenance and the cost benefits. Let’s dive into the details. 

Why Consider a Tankless Hot Water Heater?

Tankless water heaters, also known as on-demand water heaters, are a growing trend among Edmonton homeowners. These HVAC systems are transforming home water heating by delivering on-demand hot water without the need for a large tank. Instead, these water heaters utilize a compact, self-contained design that heats water as it flows through the heat exchanger. 

Does Scale Buildup Impact It?

It’s a common misconception that tankless hot water heater maintenance isn’t necessary. While it is true that these models often require less work, thanks to their self-contained layout, service is still necessary. But why is this the case? If there isn’t a tank to rust or leak, shouldn’t tankless hot water heater maintenance be nearly zero? Well, that’s not exactly the case. 


In areas like Edmonton with hard water, tankless systems can feel a lot of strain. Tankless hot water systems have what’s known as a heat exchanger. As water passes through this system, it heats the water on demand. But over time, water high in minerals (like ours) leaves deposits on this exchanger. If left unchecked, this accumulation can significantly impact efficiency. In fact, a layer that’s just ⅛ inch thick can result in an energy loss of up to 25%. 

What About Winters? 

You may have heard “Tankless water heaters can’t sustain water well enough during Canadian winters”. Unfortunately, this is another common myth that sends shivers down our spines. The truth is that unless your tankless system is installed in an unheated outdoor space, there is very little risk for freezing. 


Despite Edmonton’s below-freezing temperatures, most modern tankless systems include built-in safeguards to prevent freezing. Internal electric heaters, freeze sensors, and insulation are among the most beneficial during the colder months. Most importantly, your best line of defense is scheduling consistent, professional tankless hot water heater maintenance. 

Is the Cost Worth it?

Cost is often the big deciding factor, and understandably so. So, how does the cost stack up to other options? In general, tankless water heaters have a more expensive upfront cost than traditional water heaters. Along with this cost, you should also factor in the possibility of a gas line upgrade. This is because the on-demand nature of tankless models typically requires a greater gas flow rate than traditional tank systems. 


Despite these greater upfront costs, you can expect lower monthly utility bills in the long term. Since this system heats on demand, you’ll only pay to heat the water you actually use, rather than keeping a large tank hot at all times. On average, households that use over 325 litres of water a day can save up to 15% on their bills.

Is a Tankless Hot Water Heater Right for You?

Whether or not a tankless system is right for you depends on your household’s needs. If you’re constantly finding yourself running out of hot water midway through showers, or are interested in only using the water you use, you may benefit from one. 


Like conventional tank systems, a significant consideration is whether you can keep up with tankless hot water heater maintenance. If you’re able to commit to annual descalings and tune-ups, these water heaters are a fantastic choice for many homes. 

Edmonton’s Chosen HVAC Experts

The decision to transition to a tankless water system isn’t one you need to make alone. At Weiss-Johnson, we offer end-to-end support, including tankless hot water heater service, installations, and beyond. Reach out to us today to get a free estimate and book your consultation. Experience first-hand why more than 100,000 Edmonton homeowners have trusted us since 1977. 

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