Installed my fireplace.

We walked though a lot of campers with fireplaces in them and I noticed that none of them had a cool air intake on them(that I could see). I know my cabinet had that BIG hole in the wall,but I wanted the fire place to draw cool air from the living space,not from the under belly of the trailer. I covered that hole before I set the insert in place and made the intake under the the fireplace. I think the heater and wiring will be safer.