My LG clothes dryer might be more efficient than most

No telling how long this LG clothes dryer's been here (place was built in either 1978 or 1986, though I can't remember.) Either way, due to it being in a condo complex, versus a house, instead of venting outside (the wall in my laundry area leads straight into another unit), it recondensates the steam back into water, where it fills a tank located on the front of the unit. Needless to say, this should be the norm, for the coolness factor to it, if nothing else. Not sure about the energy efficiency, though I suspect it's decent. Sorry for any hand tremors (my hands aren't the steadiest, and my dexterity sucks.) Also, any absence of important elements in view is mine; vision also sucks.