Ask Bob HVAC and Comfort What size HVAC system do I need for my home?
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What size HVAC system do I need for my home?

HVAC size is measured in tons of capacity. A properly sized system depends on your home's square footage, insulation, window efficiency, and layout. A rule of thumb is about one ton per 500 to 600 square feet, but a professional should do a Manual J calculation for accurate sizing.

Why It Matters

An oversized system short-cycles and wastes energy. An undersized system runs constantly and cannot keep up. Proper sizing is essential for comfort and efficiency.

Related Questions

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