I was originally considering getting a two-stage heat pump and oversizing it. Based on responses to prior posts, I have decided to abandon that idea and just go with a single stage 2.5 ton heat pump for my 1500 sq. ft. home in Pittsburgh. I'm not sure that a two-stage heat pump would pay-off in the Northeast.
I am really leaning toward the Trane XL15i, but the ARI website has some decent numbers on the XR14 as well. Is the XR14 worth considering or would you recommend just going with the 15i? We are planning to use the heat pump with a Trane variable speed air handler with optional heat strips. We are also planning to live in this house for a long time.
Thanks for your help and advice.