Your water heater works hard every day, providing hot water for showers, dishes, and laundry. With proper maintenance, a tank water heater can last 10 to 15 years and a tankless unit can last 20 years or more. Neglect it, and you could be facing a premature replacement. Here are the essential maintenance tasks every GTA homeowner should know.
Essential Water Heater Maintenance Tasks
- Flush the tank annually to remove sediment buildup that reduces efficiency and capacity
- Test the temperature and pressure (T&P) relief valve yearly to ensure it is working properly — this is a critical safety device
- Check the anode rod every 2 to 3 years and replace it when it is corroded — this rod protects the tank from rust
- Inspect the area around the water heater for signs of leaks or corrosion
- Set the temperature to 120°F (49°C) to prevent scalding and reduce energy waste
- Insulate the hot water pipes and tank with a water heater blanket to reduce heat loss
Why Flushing Your Tank Matters
The GTA's municipal water supply contains dissolved minerals that settle at the bottom of your tank over time. This sediment acts as an insulator between the burner and the water, forcing the heater to work harder and use more energy. Annual flushing removes this buildup, improving efficiency and extending the tank's lifespan.
The Anode Rod: Your Tank's Secret Protector
The sacrificial anode rod is a metal rod inside your tank that corrodes in place of the tank itself. Once it is fully corroded, the tank starts to rust from the inside. Checking and replacing this rod every 3 to 5 years is one of the most effective ways to prevent premature tank failure.
Tankless Water Heater Maintenance
Tankless units require annual descaling with a vinegar solution to remove mineral buildup from the heat exchanger. In the GTA, where water hardness varies by municipality, some areas may need more frequent descaling. A water softener can help reduce maintenance frequency.
Want to keep your water heater running at peak performance? ZK Mechanical offers professional water heater maintenance across the Greater Toronto Area. Our technicians handle flushing, anode rod inspection, and full system checks. Contact us to book your service.