Camper rear sliding window was not quite big enough to fit
the smallest window unit so I made an adaptor out of wood. It hangs
the AC unit on the outside of the window, and seals (with foam) the
whole thing to the body. I will describe under each picture.
This picture shows the 2x2 and plywood construction. It is all glued
and screwed together (except the roof so you can get the unit in and
out for service). Every AC unit is different so measurements are not
given here. The bottom plywood is 3/4 inch since it is carrying the
. It also acts as the window sill for this window unit.
The sides and removable top are closely fit and use foam as a seal.
Note in this picture the little roof goes under (or inside) the window
frame so any rain goes down the sloped roof. Hopefully this (along
with foam) will help seal the rain out. Also note the silver nut on
the side. That is a threaded rod that you will see in the next
picture actually holds the unit to the side of the camper.
This interior picture shows how the wooden base reaches inside the
window frame and with a 2x2 lip, holds the bottom of the unit. The
two dowels act as clamps against the top frame. Each dowel fits in
a hole in the base and with the use of eye bolts connected to the
threaded rod (mentioned earlier). The wing nuts create a clamp like
action. I tried a horizontal clamping board, but it pushes against
the glass on the right and that is not good, so I reposistioned them
to always touch metal frame and that is on top.
Hope all this makes sense. Here in Texas we sure need AC and I did
not want to cut any holes in the camper. Roof units are too heavy
and this will allow almost any $99 unit to work.
I would not drive around with this in the window. I am treating this
as a removable unit and it goes on the floor when we are driving.