HVAC Questions

[Gary M.]

I did search for these answers before asking. But either I'm using the search function incorrectly or it just isn't user friendly.

I'm rehabbing a small home and am considering the pro's and cons of an external package unit v. a ceiling heating unit. Does anyone have experience with either of these?

Also, an investor I know swears the installers shouldn't use any flexible duct work while I know another that is having it installed in his unit now. Any opinions on this issue?

Your input is appreciated.