Jim,

Great questions that really hit on the confusion one encounters while shopping for a bus.

Jon,

Great answers that address your Liberty. It does point out that there appear to be any number of combinations that are controlled by both Prevost (on the original chassis build out) and then the converter.

For those of us hunting the used market it seems that the best we can do is accumulate a good understanding of each system, strengths and weaknesses, and then try to make a good decision. There really no right or wrong answer that I can see.

Were I to buy a bus with 4 roof airs and the standard "drivers heating and A/C system" I would have a couple of ways to heat/cool the bus. That may be the best that one can hope for ??

Michael