I was wondering if anyone had done this before.
We have a Thor Miramar with dual 13.5 AC units. The units are the Mach 3. The grill design does not take full advantage of the air intake potential which is why the RV airflow product seems to be a good fit but it does not allow for the dump vents to be used.
Why not simply remove the dump vent cover and the ceiling grill and replace it with a side by side register/return like this? https://www.amazon.com/gp/aw/d/B07X5GTQ4C
Any reason this would not work? When I sealed all the dividers and everything I turned on the ac without any cover and the amount of airflow was incredible. It just seems that this type of grill would make sense.
Anyone try it or has logic to reject the idea? I’m about to try it.