In Ontario, homeowners have two primary options for heating their homes: furnaces and boilers. Both can keep your home warm through harsh Canadian winters, but they work very differently and each has distinct advantages. Here is how they compare.
How Furnaces Work
A furnace heats air using natural gas, propane, or electricity and distributes it through ductwork. Forced-air systems are the most common in GTA homes built after 1960. They heat up quickly, work with central AC, and are relatively affordable to install and maintain.
How Boilers Work
A boiler heats water and circulates it through radiators, baseboard heaters, or radiant floor systems. Many older Toronto homes, especially those built before 1960, have boiler systems. Boilers provide consistent, even heat without the drafts and noise associated with forced-air systems.
Comparison at a Glance
- Installation cost: Furnace $3,500 – $7,000 vs. Boiler $5,000 – $12,000
- Heat distribution: Furnace uses ducts/vents vs. Boiler uses radiators/radiant floor
- Comfort: Furnace heats quickly with possible drafts vs. Boiler provides even, radiant heat
- Air quality: Furnace can circulate dust and allergens vs. Boiler does not blow air
- AC compatibility: Furnace ducts work with central AC vs. Boiler needs separate AC system
- Efficiency: Both available in 95%+ high-efficiency models
Which Is Better for Your Ontario Home?
If your home has ductwork and you want central AC, a furnace is typically the practical choice. If you have an older home with radiators, prefer quiet radiant heat, or have allergy concerns, a boiler may be the better option. Many GTA homeowners in heritage homes choose to keep and upgrade their boiler systems rather than converting to forced air.
Whether you need a new furnace, a boiler upgrade, or advice on which system is right for your home, ZK Mechanical is here to help. We service and install both furnaces and boilers across the Greater Toronto Area. Contact us for a free consultation.