A packaged unit contains the same components you find in a typical split system. However, all components are located in one unit. Just like other systems, you have a variety of efficiency levels and air handling options to select from. A package unit is typically installed either beside, on top of the home, or sometimes in the attic.

Some advantages of a ductless system include:

Easier to install - only requires wiring and ductwork to be installed

When the crawl space is limited in height and space

Can be installed on top of flat roofs with ductwork installed through the roof

Some disadvantages of a ductless system include:

Very difficult to add humidifiers, dehumidifiers, uv lights, filtration systems