Using window unit AC's work great but you must compensate for the great amount of heat they put out. I use 2 25,000 BTU window units to cool my sealed room but on the outside of the room the temps are pretty hot.

Hope this helps...

Dodo
DoDoFoShoDoe Reviewed by DoDoFoShoDoe on . A/C Window vs. Portable in Sealed Room?? In a sealed Room which would be Best? Installing a Window A/C unit in the wall (pushing cool air in) or placing a Portable A/C unit (pushing hot air out and blowing cool air) in the Sealed Room. Rating: 5