I wish I purchased this dryer earlier!  This replaced a "vented" combo washer/dry combo unit in my condo that was not externally vented!  After two months of use, I am very satisfied. The excessive dust and heat that previously floated inside the condo has been mitigated. Though the dryer is a bit more expensive then regular vented models...this dryer was the best solution for my setup of not being able to run an external vent line.