My hot water only lasts about 10 minutes now - is my water heater dying?

Short hot water duration is typically a sign your water heater needs attention, but it's not necessarily dying. Several issues can cause this problem, and some are repairable while others indicate it's time for replacement.

The most common cause is sediment buildup in the bottom of your tank water heater. Over time, minerals from Ottawa's moderately hard water settle at the bottom of the tank, reducing the available space for heated water and insulating the heating element from the water. This makes your water heater work harder and provides less hot water. A professional can drain and flush your tank to remove this sediment, which often restores normal hot water capacity.

Other potential causes include a failing heating element (in electric units), a malfunctioning dip tube that's allowing cold and hot water to mix, or thermostat issues. If your water heater is over 8-10 years old and experiencing this problem, the internal components may be wearing out. Gas water heaters might have issues with the burner or gas control valve.

In Ottawa's climate, water heaters work harder during winter months when incoming water is colder, which can accelerate wear on older units. If your water heater is showing other signs like rusty water, strange noises, or visible corrosion, replacement is likely the better option than repeated repairs.

Start by checking the age of your unit - most tank water heaters last 8-12 years in Ottawa. If it's newer, a professional diagnosis can often identify repairable issues. If it's older and having multiple problems, investing in a new high-efficiency unit will provide better long-term value and reliability.

For a proper diagnosis of your water heater issue, Ottawa Pro Plumbing offers free consultations to help determine whether repair or replacement is your best option.

---

Find a Plumbing Contractor

Ottawa Plumbing Pro connects you with experienced contractors through the https://justynrookcontracting.com:

• Cp plumbing & renovations ✓
• The Granite shop ✓
• Pure Flow Water Solutions inc. ✓