I would like opinions on the spine fins on a/s or trane units. The sales literature touts them as being superior.
Aren't they somewhat like the pin like system that Carrier used to have. I have a 21 year old Carrier system with pins or spines that every one who has serviced it has said how much they hate to clean it and that the spines bend easily. I understand that there is a benefit for corrosion resistance near the sea.