Older Home (Drafty) · 600–900 ft²
Warm Climate
BTU & Cost Estimate
BTU Required
31,878
BTU/hr
AC Tonnage
2.75
1 ton = 12,000 BTU/hr
Installation Cost
$9,625 - $16,500
USD
How we calculate
Base area (900 ft²) × BTU per sq ft (28)25,200 BTU
× Load Factor (1.15)28,980 BTU
+ Safety Margin (10%)31,878 BTU
Final BTU Estimate31,878 BTU → 2.75 Ton