If you haven't already figured it out, Roly really,
really, really really, REALLY likes working with wood ( to see the
rest of this remarkable teardrop, click on http://gages-56.com/roly.html
Roly mounted his A/C unit in the front wall, and the bulk of it is
concealed in this beautiful steamer trunk. He added the grille on
the front so the exhaust from the condenser could blow out. He may want to
add some side grilles to the trunk so the condenser has an intake of fresh
air, or else it may be just re-circulating hot exhaust air and building up
head pressure, possibly damaging the unit.
Of course, you could just leave the back half of the A/C unit exposed.
The benefits of this option are: