I had my basement finished a few years ago. In order to hold down cost I let the contractor "tap into" the existing system to supply heating/cooling to the basement.
I'd now like to rectify the situation so that my heating cooling in the entire house isn't so "unbalanced".(summer - system struggles to cool upstairs, winter - system struggles to heat downstairs).
Any ideas as to the best course of action?? Heat pump, replace system with zoned heating.
TIA