This is a new unit that has never been used. I got it from my friend, who unboxed it but then never used it. I thought I would install it in my suite when I finish renovating, but now I'm low on money and I think I will want a black one, anyway. I just plugged it in now for the first time to test it and ensure that it works. It can be optionally used as a ducted unit, with the duct either on the top or back-side.