Trane XL1200 is a split system home air conditioning and heat pump unit by Trane. It has efficiency of up to 13.90 SEER and 8.80 HSPF. The used to be at the higher end of efficiency back when the minimum legal installation was 10-SEER. But now, Trane … [Read more...] about Trane XL1200 Specs Review and Price