I'm shopping for a new Trane heat pump and air handler/heater for the home we're buying in SC. The old one (not a Trane) was stolen while the house sat vacant in foreclosure before we bought it.
I've read the stuff on the Trane page, which I can mostly understand, but I'm not sure how to compare two of the high end units I'm considering.
The XL20i 5-ton unit has two compressors, while the XL16i has a single two-stage compressor. I believe the advantage of either multi-stage compressor would be that on less severe days I could run the unit at less than 100% capacity and get enough duty out of it but use less energy. Right?
But if that's the case, more or less, what would be the advantage of going to the 20i with two compressors?
By the way: I've asked the Trane dealer I PLAN to deal with, and so far I have not heard a reply. I'm aware of one way I could respond to that!