Quote:
Originally Posted by Porthole
Are you referring the the vertical opening at the rear of the cover?
I would not add screen to those openings. Typical window screens cut airflow 50% or more when airflow is above static pressure e.g. the fan pulling air over the coils.
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Use something like chicken wire. About 1/4 hole squares. It won't stop air flow but it will stop the big chunks of cottonwood, leaves, etc. Cut a strip bend it a little in a radius and hot glue it in place.
I did this on our last SOB with Dometic Aircell AC's and it worked great.