If you’ve spent any time researching a tankless water heater, you’ve probably come across conflicting advice. Some people swear by them, while others insist they don’t work in cold climates, cost too much, or can’t keep up with a busy household.
The reality is that many of these concerns come from experiences with early generations of tankless water heaters. Over the past two decades, the technology has improved dramatically, especially for Canadian homes. Building science expert Matt Risinger recently tackled many of these misconceptions in his popular “Debunking Tankless Water Heater” video. Here are some of the biggest myths homeowners still hear today.
Myth 1: Tankless Water Heaters Don’t Work in Cold Climates
Modern gas tankless water heaters are designed for Canadian conditions. When properly sized, they can easily provide enough hot water for multiple showers, even when incoming water temperatures are near freezing. Thousands of systems are installed across Canada every year for exactly this reason.
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Myth 2: They’re Too Expensive
While tankless units often have a higher upfront cost, the price gap has narrowed considerably over the years. When you factor in energy savings, longer service life, and lower standby energy loss, many homeowners find they offer excellent long-term value.
Myth 3: Venting Makes Installation Too Costly
Modern venting options are much more flexible than they once were. Depending on the system you choose, installation can often be simpler and more affordable than many people expect.
Myth 4: Hard Water Is Worse for Tankless Systems
Hard water affects every type of water heater, not just tankless models. The difference is maintenance. Like any water heating system, regular flushing and servicing help prevent mineral buildup and keep everything operating efficiently.
Myth 5: It Takes Longer to Get Hot Water
A tankless water heater doesn’t change how far water has to travel through your home’s plumbing. The wait time is largely determined by the distance between the heater and the faucet, not whether you have a tank or tankless system. Some models even include built-in recirculation technology to reduce wait times.
Myth 6: Stainless Steel Heat Exchangers Are Always Better
There isn’t one “best” material for every application. Manufacturers choose copper or stainless steel depending on the design of the unit and how the heat exchanger will operate. A quality system uses the right material for the job.
Myth 7: You’ll Need Major Gas Line Upgrades
Not always. Every installation is different, and many existing gas lines are perfectly adequate. A qualified installer can determine whether upgrades are actually necessary rather than assuming they will be. Even if more work is needed, you’ll have access to flexible financing options.
Myth 8: Tankless Water Heaters Are Still New Technology
While they may seem like a recent trend, tankless water heaters have been used around the world for decades and have been installed throughout North America for more than 40 years. Today’s systems are proven, reliable, and designed to provide well over 20 years of service with proper maintenance.
Thinking About Going Tankless?
The best way to separate fact from fiction is to speak with professionals who install tankless water heaters every day. At Ultimate Home Comfort, we can help you compare systems, explain what works best for your home, and recommend trusted tankless solutions designed for Nova Scotia’s climate. Contact us today to get started!
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