Really underground garage
Join Date: Aug 2010
Location: mnts of Va
Very slight tangent alert,AND if you have a problem with thinking outside the box,STOP reading now.
Basements come in a variety of flavors.WRT "elevations".Some,which shouldn't even be called basements,but instead the "terrace level"....are in fact,above ground.So semantics are clouding the terminology a bit.The reason that's important is about airflow,and moisture control.Yada,yada.
That floor drain,and this is for anybody with a floor drain.....where is it connected to?The codes have sort of gone back N forth on this(don't get me started).....they used to require dump'n them outside.Then they started requiring them to be dumped along with the sewage lines.Then "they" went back to outside...then,then,etc.BUT,and here's where it gets a little weird...if you,or anybody has a floor drain that is NOT connected to the sewer(or can be changed),and you can locate the outlet.Uhhh,you have the makings for a downdraft vent system.
Well,at least as much as a 4" pipe can convey.Slap a POS HF,1 HP DC(no bag)to the exhaust side and wire it to a switch....just sayin,it'll work.Cattle mats will help slightly in overall comfort.But your vent system'S are where I'd start.Good luck.
Those who say it cannot be done shouldn't interrupt the people doing it.