The Dometic Penguin II heat pump is a sleek, low-profile heating and cooling system for RVs and motor homes. Choose a Penguin II heat pump for comfort and durability. Full automation means freedom from worry.The heat pump is thermostatically controlled by the Comfort Control Center II (CCC2) (sold separately) in ducted applications. Control automatically activates heat pump. The CCC2 can also control the Aquaheat floor system or Automatic Generator Start (AGS). In non-ducted applications, the Penguin II uses ceiling-mounted air distribution box (ADB) (sold separately).