Wisdom: Replace a furnace or upgrade to central air?
Hi guys, I'm new to BiggerPockets. I just bought my first property in May 2022. It's a 4-plex that I am house-hacking. Each unit has its own furnace and two window AC units. One of the furnaces is in the process of dying and needing to be replaced. Here's the question: Should I just replace the furnace and keep the expenses to $3500-4000? Or is it wiser/more cost effective to upgrade to central air at the same time? I'm guessing the total bill will come out to $11,000. I plan to hold the property for 30 years since it's in a great location. Is it worth the upgrade? Love to hear what you think!