=== similar to my situation. Our Lennox was built in 1985, still runs extremely strong, and cold. The A-coil was replaced about 12 years ago under a home warranty when we bought the house. Been flawless since. Have had more than one knowledgeable person(s) see the unit and comment “pray it keeps on going, they make nothing close to that quality these days”. I’ll ride this bugger until there are no options left to keep it going, SEER ratings be damned. I’ll trade a few extra $ a month in electricity vs. $8K for a new unit.
— one another note, there is a HVAC company in our area touting Daiken products. Offers are full 12 year warranty, parts/labor —