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Can I install AC in a house without ductwork

Question

Can I install AC in a house without ductwork?

Answer from HVAC IQ

Yes, you can absolutely install air conditioning in a house without existing ductwork. The most common and cost-effective solution is a ductless mini-split system, which provides excellent cooling without requiring any ducts.

Ductless mini-split systems are perfect for homes without ductwork. These systems consist of an outdoor compressor unit connected to one or more indoor air handlers mounted on walls or ceilings. The indoor and outdoor units connect through a small refrigerant line that only requires a 3-inch hole through the wall. Each indoor unit can cool a specific zone or room, giving you precise temperature control throughout your home.

For Ottawa homes, mini-split systems offer several advantages beyond just avoiding ductwork installation. They're highly energy efficient, often achieving SEER ratings of 20+ compared to 14-16 for traditional central systems. Many models also provide heating capability, making them year-round comfort solutions. The installation is typically completed in one day, and you'll have individual temperature control for different areas of your home.

Installation costs in Ottawa for ductless systems typically range from $3,500 to $6,000 depending on the number of indoor units needed. A single-zone system for one room might cost $3,500-4,500, while a multi-zone system covering an entire home could reach $6,000-8,000. This is often less expensive than installing central AC with new ductwork, which could cost $8,000-12,000 or more.

Professional installation is essential for mini-split systems because they require refrigerant handling, electrical connections, and proper sizing calculations. The outdoor unit needs adequate clearance and proper drainage, while indoor units must be positioned for optimal airflow. Only licensed HVAC technicians should handle the refrigerant connections and system commissioning.

For a free assessment of your home's cooling needs and mini-split options, consider getting quotes from licensed HVAC contractors who can recommend the right system size and configuration for your specific layout.

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