[Greenbuilding] Central vs window AC

[nick pine]

Drew writes:

>occupants ( internal gains) and solar are the big loads, not the shell

Night ventilation can help a lot, with a massy shell.

My simulations using hourly weather data say smart ventilation can keep a 
house near Phila comfortable for all but a few days a year, when a 
water-filled earth tube can help. Using the earth tube too often heats up 
the soil. A house still needs airtightness and a small AC for 
dehumidification.

Nick