On the right side of the second floor you will see a sleeping porch. These houses were built before air conditioning. The porch was usually on the second floor, and facing the south east to get to breeze from the ocean. The homes had cross ventilation - that means a room would have windows on at least two walls. With such a system you don't have to use the air condition until it is really hot. Some of the neighbors never open their windows and their air conditioner is on all of the time. Some time I can't figure if they are warming or cooling.