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Ductless mini-splits and central AC systems both deliver effective cooling, but they work very differently. Mini-splits provide zone-controlled comfort without ductwork, while central AC cools the entire home through existing ducts. The right choice depends on your home layout, existing infrastructure, and cooling priorities.
| Metric | Ductless Mini-Split | Central AC |
|---|---|---|
| Average Cost | $3,000 - $5,000 per zone | $3,500 - $7,500 whole home |
| Lifespan | 15-20 years | 15-20 years |
| Energy Efficiency | SEER 20-30+ | SEER 14-22 |
| Installation | No ductwork needed — wall-mounted units | Requires existing ductwork |
| Best For | Additions, older homes without ducts, zone cooling | Homes with existing ductwork, whole-home cooling |
| Aesthetics | Visible indoor wall units | Hidden — ducts and vents only |
Choose ductless mini-splits if your home lacks ductwork, you are adding onto your home, or you want zone-by-zone temperature control. They cost more per zone but save energy by cooling only occupied rooms. Choose central AC if your home already has ductwork in good condition and you want invisible, whole-home cooling from a single system. For the best of both worlds, some homeowners use central AC for the main living areas and a mini-split for a bonus room or home office.
Most homes need 1 zone per major room or area. A typical 3-bedroom home might need 3-4 zones: one for the living area, one for each bedroom. Open-concept spaces may need only one high-capacity unit. A qualified HVAC technician can perform a load calculation to determine exact needs.
Yes. Most modern mini-splits are heat pumps that provide both heating and cooling. Cold-climate models can heat efficiently down to -25°C to -30°C, making them viable as a primary heating source for many Ontario homes. This dual functionality is one of their biggest advantages over central AC.
Generally, no — mini-splits are considered upgrades, especially in homes without existing ductwork. They can increase value by providing efficient climate control. However, aesthetics matter: ensure wall units are professionally installed in logical locations. Some buyers may prefer the invisible look of central ductwork.
Find licensed contractors in your area who can help you choose between ductless mini-split and central ac.
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