It’s cheating, a bit, to live in a place that drops 20-40 F at night … but even if we didn’t, the ability to turn every open window into an air conditioner is a great trick.
Yes. It's really amazing. First thing that I did after bought house last summer was to install whole house fan. Due to it we used hvac to cool house for less than 36 hours in July-October timeframe (only at days when temperatures were above 40 for few days in a row or when night temperatures didn't went down below 20)
It’s cheating, a bit, to live in a place that drops 20-40 F at night … but even if we didn’t, the ability to turn every open window into an air conditioner is a great trick.