really doesn't make any difference,if the dash A/C is rated 2500 more BTUs
that ability only extends into the cab area
the dash A/C does not move/cool the same amount of air as a roof top or basement A/C
it is not centrally located, it can not force cool air to the rear half of class A MH, it will cool the driving area and Maybe the sofa 'maybe'
a class C has a smaller cockpit area to cool, allowing for more cooling for the area behind the cockpit
simple 'BTU capacity' numbers do not tell the whole story
and a short class C, does not have nearly the cubic volume of space as a larger class A
