It also depends on how high off the ground you are. Be aware that (at least in Wisconsin) if you are more than 24" above ground to the floor of the room, you can't use a vinyl product like PGT Eze-Bre ... read more
If an ordinary residential unit won't work for you, then you should consider something such as a Santa Fe, Ultra Aire, or another unit made by Therma-Stor. These are the kind that can be ducted, have ... read more