Last fall Samsung introduced a couple of competitively priced, ultra-high efficiency clothes dryers that use heat pumps. Heat-pump-technology dryers are also available from companies like Miele, Asko, Blomberg and Beko and have recently become more affordable.
(Heat-pump-based dryers are sometimes called "ventless" because they recycle the air used for drying in a closed loop.)
Samsung Ventless Clothes Dryers
Energy Star rated electric clothes dryers
(Heat-pump-based dryers are sometimes called "ventless" because they recycle the air used for drying in a closed loop.)
Samsung Ventless Clothes Dryers
Energy Star rated electric clothes dryers