Originally Posted by Cyrus Safdari
You can install the window units over a hatch if you make a 90 degree duct for the cool air to go down the hatch, thus not blocking up the companion way though reducing cool air output perhaps.
This works like a charm and is cheap
. I have done it twice. Once with 1/2" plywood
and once with 1" unfaced polyurethane
foam. A foam box is easier to make needing only a framing square, a bread knife, and epoxy
glue; not a table saw. Foam is a better insulator and does not suffer from condensation
on its outside. In both cases I added an interior
baffle to separate the stream of warm cabin
air coming into the unit from the cooled air returning to the cabin
. The baffle formed a diagonal and added greatly to the rigidity of the box. Properly done the LED display was visible, and and the remote
easily controlled the air conditioner. The window air conditioner rested atop the deck
on blocks of scraps so that it sloped as designed a bit down towards its hot air discharge end. With ratchet straps holding the box down and foam gaskets between the box, the boat
, and the air conditioner, the assembly was (is) rain proof. Without them, a tarp tied over the box made it waterproof. I painted both boxes inside and out with latex house paint
to make them both prettier and easier to clean. With all the gear
outside the boat, there was (is) more room for me inside the boat.