Ductless Mini-split systems are the ideal solution for room-by-room comfort. Ductless systems are small and nearly silent and offer a great deal of energy savings (up to 26 SEER) and comfort control. The lack of need for ductwork has an aesthetic advantage to other solutions and no temperature duct-loss.
The 26 SEER models exceed the qualifications for the Federal Energy Tax Credit.

Multi-zone units means you can connect up to 4 Indoor Units to utilize 1 outdoor unit.
Depending on the applications there are a few options as to the indoor unit, the most often used wall mounted unit, a ceiling cassette, and floor mounted unit.