First, we cut off the siding of the house using the multi-master.

Then we assembled the back half of the box.

These are the three window panes that will go on the front of the box.

Here is the box mounted on the wall. We haven't yet painted it or assembled the screening on the outside.

The wiring of the wall was all funky so we had to cut out the wall inside the house and fix it.

Then we inserted the ducts from the box to the room. Then we replaced all the insulation with new insulation.