I'm installing a new condenser, coil and furnace. I have a 2,400sf home and currently have a 4 ton system in there, but have been told by the HVAC company that I should put in a 5 ton system. Is that okay?
Also, I'm getting the total tax credit just installing the A/C, so was considering the 80% AFUE furnace, but also considering the 95% AFUE furnace. It's more $, is it worth it?