Starting to sort out the pros/cons between these two (and deciding if we should get a Trane quote) but wanted some feedback from pros. Both installers are highly recommended although both sent out estimators versus lead installers. The lennox guy did do a volume calc. We are in central MD, about 3,000 SF house. Currently we have a '95 Goodman that is having HX problems. It is supposed to get 90% efficiency so wanted to take the jump to 95% and check into rebates (are they for real?) Looking into the humid (Aprilaire 400 vs 550 or 600) & filtration (Lennox HC-10 vs Aprilaire 2410) options too. Thanks for your help.

Carrier Infinity ICS 58MVC100-20 * Infinity Control * Infinity 21 24 ANA148 17 SEER (4 ton)

Lennox G71MPP-60C-90 * Programmable T-stat * Lennox XC15-48 (4 ton) 14.7 SEER

The lennox top deal is considerably less but want to see what we give up.