A mini-split system and a mini-split are essentially the same thing, and the terms can be used interchangeably. A mini-split, also known as a ductless mini-split system, is a type of heating and cooling system that consists of an outdoor unit and one or more indoor units. The indoor units are typically wall-mounted and are connected to the outdoor unit via a small conduit that houses the power cable, refrigerant tubing, and condensate drain. Each indoor unit has its own thermostat, which allows for individual temperature control in each room. The main advantage of a mini-split system is its flexibility in providing zoned heating and cooling. With a mini-split system, you can choose which rooms or areas to cool, and you can adjust the temperature in each zone independently. This means you can save energy by only cooling the rooms you use, rather than cooling the entire home. Mini-split systems are also easy to install, as they do not require ductwork, which can be a source of energy loss. Additionally, mini-split systems are often more energy-efficient than central air conditioning systems, as they can avoid the energy losses associated with ductwork.