Just in time for our first [and hopefully last] significant snow storm of the season, this expandable sauna quite literally pops onto the scene. When 'closed', the cabinet is slightly less than two feet deep. Push a button, and the enclosure automatically telescopes out about six feet from the wall, the heater and bench seating also sliding into place. The S1 sauna is portable, so if you decamp from frigid climes to a merely bone-chilling location, the unit can move with you. klafs.com