The Brisk II AC w/Heat Pump heats and cools from a single unit. Blower cycles automatically in cooling and heating modes, for complete comfort from 30F and up. Provides all-electric heat. Convenient use with optional wall controls. Non-ducted applications use a ceiling-mounted air distribution box (ADB), sold separately. Ducted applications can be controlled with the Single Zone LCD thermostat or Comfort Control Center II (sold separately).