Interesting thoughts on venting. In the winter I close the vents upstairs so I get heat downstairs. In the summer I close the vents downstairs so I can get things cool upstairs. Vents are great because they allow heat and cold to spread around the home. Without vents we would either freeze or squelter in the heat. There's vents in my car that turn up and down and sideways too, also a bonus. Did you know that we vent from our mouths and also from our butts? Both are a real relief too. One should never try to prevent venting for very long or one might explode, or even worse implode!!