Night Ventilation Cooling Calculator

Calculate cooling potential from night ventilation using thermal mass.

Total thermal capacity of structure.
BTU/°F
Average nighttime temperature.
°F
Desired daytime indoor temperature.
°F
Airflow during night cooling.
CFM

Results

Cooling Potential-BTU
Equivalent Cooling Capacity-ton-hours
Required Ventilation Hours-hours
References: ASHRAE Handbook - Fundamentals, Chapter 16 (Ventilation and Infiltration); DOE Passive Cooling