Hi everyone,
We’re adding on to our house (about 1,000 sq ft total) and trying to figure out the best A/C + heating solution. Our existing heat pump system is maxed out and difficult to run ducting to the addition. The addition has four rooms. We can run ductwork in a new attic to serve three of the rooms, but the fourth room has layout/structural constraints that make running ducts to it very difficult or impossible without major (and expensive) work.
My current thinking is something like this:
• One central ducted air handler (or similar) in the attic that handles the three rooms via supply/return ducts.
• A separate single-zone ductless mini-split cassette for the fourth room.
Is this hybrid approach realistic and commonly done?
Any better alternatives I’m not thinking of?
Thanks in advance!