"mm" wrote
My next door neibhor also has original AC and furance from 31 years
ago, and I believe all the families who lived there used their AC a
lot. Carrier, fwiw. Though that's not the brand they're replacing it
with. She's keeping her furnace.


She is not very smart. In five years she'll be paying a lot extra to have
an inefficient furnace replaced. Easier to to it all now.