This tool estimates whole-home cooling and heating loads based on home size, envelope, and design temperatures, then suggests a system size. Use for quick planning; verify final sizing with Manual J and manufacturer data.
Estimated cooling load: BTU/hr
Estimated heating load: BTU/hr
Recommended equipment size:
These are rule-of-thumb estimates. Final equipment selection should follow Manual J, Manual S, and manufacturer performance data at your actual design conditions.