Originally Posted by warewolff
I had researched some 12v dash units that will use a lot less power and should get the job done as far as defrosting. I think we will really benefit from the extra space and clean look when we remove all the blower junk.
the carpenter bergstrom box is one of the worst for sure... its a very poor design.. you cant even replace the fan motors without removing it from the bus....
as long as its a coolant heated coil you can do good with a smaller defroster.. if its electrically heated.. good luck..
I used a hot-rod aftermarket heater for the defroster when I rebuilt that box.. i kept the box but now have A/C, heat, and defrost out of it instesad of just halfass heat and worthless defrost