Double Hung vs Single Hung Windows? Any suggestions?

[Greg P.]

Hello, I am wondering why some go for the double hung vs the single hung when the single hung looks almost the same and is significantly less? As a homeowner looking to buy I wouldn't think they would notice a difference. Is there a reason to go with the double hung vinyl windows? Thanks.

[Christian Morency]

In a room with only one window, a double hung window can ventilate the room through convection. Hot air goes out the top and cold air comes in the bottom.
In a room with two windows, you have to open both and hope there is a breeze.