Originally Posted by 4x4van
I would suggest you not do that. Your furnace is designed with specific airflow requirements- both in and out.
What you are contemplating has the potential to restrict the intake air, which can cause the unit to overheat and fail. What is it about the existing design (that is typical of all RVs) that you don't like?
This may be one of those cases where the best we do to try to help is not going to work!
Note that this post is from 3 months ago.
They seem to have dropped in, asked a question but gave no info of what year they were speaking of so help was really limited and never came back with better.
It is true that best answers only come from asking the best questions and giving the best info !