Originally Posted by Ronsam
As an old Fire Chief there many concerns some have already been addressed but the one I have not heard is make up air rvís are usually pretty air tight and fire uses a lot of oxygen
You should not rely on just an open window
I wouldnít count myself as an old timer, but I specifically researched getting an 5er that would do well in cold and hot and the last thing I would consider is that itís to airtight. Mine and everyone Iíve talked to leaks air at every opening around windows, doors, etc.