Costco has a pretty small 6000 btu AC now
I bought one and am going to see if I can mod it to work just venting from the back for a in-cabinet side wall installation. It is very very tiny and $139. I will let you know how it goes.
Forum Discussion
I think you'll be disappointed with the performance if you block the sides in.
I believe that window units suck air in through the sides and blow them out the back, or vice versa.
At the very least you need to build in some venting around the sides to allow air in/out.
Ideally for this application, you'd want a sleeve unit, which is designed to have the sides buried in a wall. Unfortunately the public can't purchase small 5000-6000 BTU sleeve units that I've been able to find.
I believe that window units suck air in through the sides and blow them out the back, or vice versa.
At the very least you need to build in some venting around the sides to allow air in/out.
Ideally for this application, you'd want a sleeve unit, which is designed to have the sides buried in a wall. Unfortunately the public can't purchase small 5000-6000 BTU sleeve units that I've been able to find.
