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4 Urgent Signs You Need a Hot Water Tank Replacement

Hot water tanks are essential in many of Edmonton’s homes, providing a steady source of hot water for showers, laundry, and everything in between. But frequent usage can lead to wear and tear, which shortens their lifespan. In fact, several signs indicate your hot water tank may be failing. Recognizing these indicators early on can not only prolong the service life but also prevent expensive damage to the rest of your home.


Explore with us at Weiss-Johnson as we take a closer look at some common signs that it’s time for a hot water tank replacement. Since 1977, we’ve delivered superior HVAC solutions and have proudly served over 100,000 happy customers. Keep reading to learn what to watch for and how we can help you next.

#1: A Drippy, Leaking Tank 

A few drips here and there from your hot water tank might seem harmless. But the truth is that your hot water tank is designed to be completely air-tight. If you’re noticing any leaks from the tank, that’s a clear red flag that something is wrong. There are a few reasons why leaking can occur, from an excess of tank pressure to wear and tear. 


If you’re noticing any leaks from your hot water tank or valve, it’s vital that a certified professional looks at it. They’ll be able to accurately diagnose the root of the issue and advise you whether a hot water tank replacement is needed. 

#2: Cloudy, Rusty-Coloured Water

One of the clearest indicators of needing a hot water tank replacement is reddish, rusty coloured water coming out of your taps. You might also notice a metallic smell. Over time, the metal in hot water tanks may begin to corrode and rust. If left untreated, this corrosion can then leak into your main water supply. 


Though rusty coloured water isn’t hazardous in the short term, it still contains bacteria and contaminants. If you’re noticing it, you should make it a high priority to call a certified HVAC technician right away. 

#3: Inconsistent Hot Water 

Unexpected spurts of cold water while showering aren’t just an annoyance—it may mean there’s a deeper issue with your hot water tank. These sudden bursts can sometimes mean a simple repair, such as replacing the heating element or adjusting the thermostat. However, it can also indicate larger issues that require a hot water tank replacement. Whether your water starts hot and then gradually gets colder, or fluctuates between temperatures, the problem will likely worsen if left untreated. 

#4: Sky-High Energy Bills

Even if you haven’t noticed any of the physical signs of a faulty water heater, an undoubtedly noticeable sign is your energy bill creeping higher every month. One of the most common reasons for this is sediment accumulation. Cities like Edmonton have hard water, with high levels of minerals like magnesium and calcium. Over time, these minerals build up at the bottom of hot water tanks. This sediment layer makes it harder for hot water to heat evenly, forcing your tank to use more energy to deliver the same results. The result? An inefficient system that impacts every hot water activity. 


Other issues that can cause higher-than-usual energy bills include:

  • Tank insulation is degrading over time
  • Worn-out heating elements
  • Rusted gas burners (for gas water heaters)

Stop That Leak & Start Fresh with Weiss-Johnson

If you’ve noticed any of these signs, it may be time for a hot water tank replacement. Reach out to our expert support team today and learn more about how we can help you manage your home’s HVAC and plumbing. We can’t wait to connect and show you why Weiss-Johnson has been Edmonton’s chosen HVAC service provider for nearly 50 years.

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