To keep the shop cool in the summer and warm in the winter we got a 13,000 BTU portable air conditioner / heater combo. This is also related to my last post about the garage door curtain. Part of the reasoning of a portable AC/Heat unit is that it can be used as an emergency backup if required.
Instead of using the window vent kit we used a cloths dryer outdoor vent and piped it through the wall:
The AC exaust hose is 5 inch so we got a 5 to 4 inch vent adapter from our home improvment store. Put it all together and taped it up with metal duct tape:
Next is the drainage. Here is a shot of what I got:
And an outside shot: