We have the 7100xc in our week old Big Country. Not happy with it, washer is ok, dryer gets very hot and all you get is hot, wrinkled, wet clothes. Have contacted dealer (Camping World) about exchanging for vented stackables. He was uncertain if can put stackables in or not, but research says you can and wall has decal as to where to put hole for vent. Does anyone have stackables in a Big Country 3251TS ?