When to Replace Your Furnace

A reliable furnace keeps your home warm and safe through Ontario winters. But when a unit starts breaking down or losing efficiency, replacement becomes the smarter choice.

1. The Furnace Is 15 Years or Older

Most furnaces last 15–20 years with proper maintenance. If yours is near that range and repairs are becoming frequent, plan a replacement before a mid-winter failure.

2. Rising Gas or Hydro Bills

An older furnace burns more fuel to deliver the same comfort. A high-efficiency model can lower energy costs by up to 25%.

3. Uneven Heating

Cold spots in bedrooms or basements often mean your system struggles with airflow. A new furnace restores balanced comfort throughout your home.

4. Strange Noises or Frequent Cycling

Grinding, rattling, or short-cycling mean internal wear. These issues often point to a failing blower motor or heat exchanger.

5. Visible Rust or Corrosion

Rust near the cabinet or burners signals age and moisture damage. Once corrosion spreads, replacement becomes the safe option.

Why Replacement Makes Sense

A new, properly sized furnace improves comfort, reduces bills, and increases safety. Modern systems also integrate better with smart thermostats for consistent performance in extreme cold.

Our Process

Mazgan Inc. starts every replacement with a full system evaluation. We check ductwork, gas piping, and venting to ensure the new unit performs to manufacturer and TSSA standards. All work is handled by a licensed G1 Gas Technician with over 20 years of experience.

Ready for a Quote?

Send us your furnace model or a photo of the nameplate. We’ll provide a detailed, no-obligation estimate for a high-efficiency replacement that fits your home and budget. https://www.mazgan.ca/contact