No Ductwork No Problem. Amvent Ductless (Duct-Free) Mini Split Air Conditioning Systems can be installed in virtually any location. Amvent systems provide high efficiency cooling during the hot summer months, and are far more economical when compared to conventional central air conditioning systems. Ductless Mini Split Air Conditioners are also known as Zone Systems, cooling the zone or area in which they are installed. The system can be turned on or off when the zone is in use; this capability allows for substantial energy savings. Ductless Mini Split systems have two main components: 1) the indoor unit (Evaporator), 2) and the outdoor unit Condenser). Installation is simple: the indoor unit hangs on a metal bracket (supplied) that attaches to the interior wall, much like a picture frame. A three-inch-wide hole is then drilled through the wall. The line set (refrigerant gas pipes) and communication wires are passed through the hole, connecting the indoor and outdoor units. Main power is supplied to the outdoor unit, powering the indoor unit as well. Once installed, the entire system is operated by a wireless remote control (supplied). Just use the remote to set the desired temperature and the system will run, maintaining the set comfort level. Amvent Ductless Mini Split Air Conditioning Systems are designed to be easy to use and install, durable, economical, and versatile while providing an attractive and modern accent once in use - a perfect union of comfort and elegance.