Older Home (Drafty) · Up to 600 ft²
Cool Climate
BTU & Cost Estimate
BTU Required
22,770
BTU/hr
AC Tonnage
2
1 ton = 12,000 BTU/hr
Installation Cost
$7,000 - $12,000
USD
How we calculate
Base area (600 ft²) × BTU per sq ft (30)18,000 BTU
× Load Factor (1.15)20,700 BTU
+ Safety Margin (10%)22,770 BTU
Final BTU Estimate22,770 BTU → 2 Ton