Typical of any gas pack with the heat exchanger in the cold air. We've never lost a Rheem tubular heat exchanger on a gas furnace, 80 or 90, but had to replace one in a gas pack a few years ago. I think York is one of the rare brands who put the HX before the coil. Or if people aren't too cheap, get a model with a SS exchanger.
Smaller Lennox GCS16's also have the HX before the evap coil.
Discipline your child so that other parents don't have to.
We're awl pawthetic and kweepy and can't get giwrls. That's why we fight wobots.