Revolving Doors Save 74% of Energy Which Can Heat 5.1 Houses For a Year!

On average 8x as much air is exhanged when a swing door is opened as opposed to a revolving door. That’s 8x as much new air that needs to be heated or cooled and that’s why using the revolving door is a great way to reduce energy requirements on campus.

read more | digg story

Advertisements

%d bloggers like this: