Quote Originally Posted by micdundee View Post
I guess we are all guilty of that. I am trying to estimate the tonage by the type and size of the ducts (if visible), and supply grilles.
and if the place is cool when I walk in, I look up to see if it will be too cool while siting under a grille.
Probably embarrassing to whoever is with us, because of the people try to figure out "what the hell is looking at".
I tend to do that also...

However I have learned how to do it without being obvious...
Casual conversation, while my eyes are going around.