"Dottie" wrote in message
ups.com...

Before getting an estimate I need to know if the energy savings cost
would justify buying the higher SEER


Would depend on your location and utility costs.


and do Trane and Carrier perform
about the same over the long haul?


Did you miss my first post?
It's going to depend on the installation, so hire the best qualified
company!


Does one break down more? That
sort of thing.


Yep, the one that's installed by the hack using mis-matched equipment.