Question 1

How much does furnace repair cost in Toronto?

Accepted Answer

Most furnace repairs in Toronto range from $150 to $600 depending on the part. A flame sensor cleaning costs $150–$200, an igniter replacement runs $200–$300, and a gas valve replacement is typically $350–$600. EcoFrost charges $0 overtime — the same flat rate applies evenings, weekends, and holidays.

Question 2

How often should I replace my furnace filter?

Accepted Answer

Standard 1-inch filters should be replaced every 1–3 months. Thicker 4-inch or 5-inch media filters typically last 6–12 months. A clogged filter is the number one cause of furnace breakdowns — it starves the heat exchanger of airflow and trips the high-limit switch.

Question 3

What AFUE rating should I look for in a new furnace?

Accepted Answer

In Ontario's climate, look for a minimum 96% AFUE furnace. This means 96 cents of every dollar in gas is converted to heat. Two-stage or modulating models (96–98% AFUE) provide better comfort and lower gas bills versus single-stage units.

Question 4

How long does a central air conditioner last?

Accepted Answer

A well-maintained central air conditioner typically lasts 12–18 years in Ontario. The biggest factors affecting lifespan are annual tune-ups, coil cleaning, and not running the system below 16°C outdoor temperature. Units that skip maintenance often fail in 10–12 years.

Question 5

What is a heat pump and how does it work in Ontario winters?

Accepted Answer

A heat pump is an electrically-powered system that moves heat rather than creating it. Modern cold-climate heat pumps (like Lennox XC21 or Carrier Greenspeed) operate efficiently down to -25°C, making them viable as a primary heat source in Ontario. Most GTA homes pair a heat pump with a gas furnace in a hybrid system for maximum efficiency.

Question 6

What does a red tag on a furnace mean?

Accepted Answer

A red tag means a technician has found a safety issue — typically a cracked heat exchanger, gas leak, or improper venting — and the furnace has been shut off and cannot legally be restarted until repaired. EcoFrost specializes in red tag removal with same-day diagnosis.

Question 7

How much does a new furnace cost installed in Ontario?

Accepted Answer

A complete furnace installation in Ontario ranges from $3,500 to $7,500 depending on equipment efficiency, unit size, and labour. A standard 96% AFUE single-stage Goodman runs about $3,500–$4,500. A top-tier modulating variable-speed Lennox can reach $6,500–$7,500 installed. EcoFrost offers 0% financing.

Question 8

When should I run my AC versus using a heat pump?

Accepted Answer

If you have a combined heat pump and AC (ducted or ductless), the heat pump handles both heating and cooling. If you have a traditional AC plus gas furnace, the AC handles all cooling. For hybrid heat pump + furnace combos, the heat pump cools in summer and heats in spring/fall, while the furnace takes over below about -10°C.

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