Dimensions:........18. 1/2 "-wide ....... 15. 1/2 "- deep ....... 12. 1/2"- tall....... Work great ,,, Blows out very air....Got a lot of setting that you can play with.. The Bad ............ There is a part that slide out on the side of air conditioner that brook off......The rest is ok . Duck tape or cardboard will work great when you put it in window. ...See picks..... Set back and cool off and think all it needed was a little duck tape..,,,, Coo;ing capacity...... 6.000 Btus