I was told that the copper/aluminum coil on the Payne heat pump is much better than the Spine Fin system one my old Trane Heat Pump.
He said that the fin spine is the old system and is less efficient than the new copper aluminum on a Payne.
Is this true?
• Is there a difference?
• Is one better than the other?
• Is it a notable Functional Feature?
(This discussion is about the type of coil only, the rest of the heat pump should be excluded here.)