Signs the tank is due
- Water on the floor around the base of the tank.
- Rust-coloured hot water or a metallic smell.
- Popping or rumbling as the burner runs.
- Showers turning cold well before they used to.
- The date on the rating plate is more than ten or twelve years back.
Why tanks wear out here
The lake water Peel sends us is moderately hard. Over years, minerals settle into a layer at the bottom of the tank, and the burner works harder to heat through it. The steel tank is protected by a sacrificial anode rod; once that rod is spent, corrosion starts on the tank itself.
How we replace it
- We confirm the size, venting type and fuel supply of the existing unit.
- We close the gas and water and empty the old tank.
- The new tank is set, with new flex connectors, a fresh relief valve line and correct venting.
- Gas connections are leak-tested before the burner is lit.
- A match or smoke pencil at the draft hood proves the flue pulls, then the thermostat dial goes to about 49°C with you watching.
What moves the bill
Power-vented units, which push exhaust through a side wall with a fan, cost more than conventional chimney-vented tanks. Larger tanks, tight basement access and updating venting to meet current code all add to the job. A permit and inspection may apply to gas work.
Worth asking
Ask whether the same size still suits the household. Ask whether a tankless unit makes sense for your space. And ask about the old tank: who removes it, and whether a rental company expects it back.
What callers want to know
How long does a gas tank water heater last?
Ten to fifteen years is typical, more with care, less with hard water. Flushing the tank once a year helps.
Can a tank be replaced the same day?
Often, yes, when the unit is in stock and the venting does not need major changes.