Gas Furnace Installation in Toronto & the GTA

Furnace capacity should be selected from the home’s heating requirements, not by floor area alone. Insulation, windows, air leakage, layout, climate and the existing duct system all affect sizing. Ask how the recommended capacity was determined.

AFUE means Annual Fuel Utilization Efficiency. It represents the percentage of fuel converted to seasonal heating output under the rating method. It is useful for comparing models, but installation quality, controls and the condition of the home also affect comfort and energy use.

Sometimes, but compatibility must be assessed. Furnace type, vent material, route, termination, condensate requirements, control wiring and connected equipment can require changes. These items should be identified in the installation scope.

Timing depends on access, required venting or drain changes, electrical and thermostat work, duct transitions and whether unexpected conditions are found. The installer should confirm the anticipated schedule after evaluating the home and selected equipment.

TSSA states that fuels work in Ontario must be performed through a registered fuels contractor using technicians certified for the work they perform. Homeowners can verify a contractor in the public TSSA registry before proceeding.

A useful written quote should identify the furnace model and capacity, efficiency, included labour and materials, venting and condensate work, thermostat or electrical changes, removal of old equipment, warranty terms, exclusions and payment conditions.