[criddell]

We had a mini split installed into our garage (a Daikin that’s been great). I’m not sure how we would do that for the house. It’s a forced air system with outlets and return air in every room. I’m not sure how feasible it would be to pipe the output from a split system into that ductwork.

[turtlebits]

Mini splits aren't ducted (generally the air handler is mounted high up on a wall). They are great for spot heating.

[sokoloff]

Ductless mini-splits aren't ducted. (These are the type most are familiar with, the ones with a large air handler up on the wall or in a ceiling cassette.) However, mini-split just means that the condenser and evaporator units are separate ("split") and are smaller capacity ("mini") than a traditional central air system (which are also "split").

There are ducted mini-splits in addition to ductless mini-splits.