We are in the process of replacing our gas furnace. The old one was about 20 yrs. old. We've decided on a contractor who deals in Carrier but I'm trying to decide which model. 80% 2 stage furnace, what I'm trying to decide is the 2 speed model or the variable speed. I live in Central NJ around Trenton. I understand the arguments for the variable but I don't entirely understand the workings of a 2 speed fan. Will both help with air stratification? Are variable speed fans prone to needing repairs? Am nitpicking too much for the difference of $700? The 2 speed will cost around $3000 and the variable about $3700. Any help, thoughts, suggestions or comments would be greatly appreciated.
jkmind in Central NJ