There is a 10K unit in the boy's room that also blows into the 1st room.
There is a 6K in the next room.
The next room has another 6K in it.
My bedroom has a 6K, and the middle bedroom has a 6K.
The 18K in the attic can blow down the steps to top it all off.

So the next day that roasts all will be blasting and should cool the whole house off.