Carrier Infinity zoning retrofit possible?
Can the Carrier Infinity zoning system be retrofitted to an existing 1 zone system? Just started researching this for my 2 floor, colonial.. Basement is unfinished, but will the system involve breaking sheetrock walls on 1st and 2nd floor? Also, looking into Arzel and Honeywell zoning system, which can be retrofitted. BTW, I will plan on changing the furnace and A/C as well.