Older Home (Drafty) · 900–1,200 ft²
Hot & Humid Climate
BTU & Cost Estimate
BTU Required
48,576
BTU/hr
AC Tonnage
4.25
1 ton = 12,000 BTU/hr
Installation Cost
$14,875 - $25,500
USD
How we calculate
Base area (1,200 ft²) × BTU per sq ft (32)38,400 BTU
× Load Factor (1.15)44,160 BTU
+ Safety Margin (10%)48,576 BTU
Final BTU Estimate48,576 BTU → 4.25 Ton