Older Home (Drafty) · 2,200–3,000 ft²
Cold Climate
BTU & Cost Estimate
BTU Required
132,825
BTU/hr
AC Tonnage
11.25
1 ton = 12,000 BTU/hr
Installation Cost
$35,000 - $60,000
USD
How we calculate
Base area (3,000 ft²) × BTU per sq ft (35)105,000 BTU
× Load Factor (1.15)120,750 BTU
+ Safety Margin (10%)132,825 BTU
Final BTU Estimate132,825 BTU → 11.25 Ton