Originally Posted by HestiaMea
I was wondering if anybody had any thoughts on how important it would be to take out the original heating from the bus. I tend to be in colder climates most the time and figure that with the bus that probably would not change and I would like to have a little bit better option at heating while I'm driving then I might if I removed it.
I had to reinstall the entire coolant loop in my rig, primarily for the defroster. Engine heat is one of the few things that was able to warm up the cabin without even having it insulated... it is going to be a real nice-to-have in colder weather.
You can just not circulate the coolant in warmer weather to keep normal heat from frying you- usually there's a booster pump or something for that you can just shut off. I put mine on a PWM motor controller to act as a thermostat. Just check to make sure your heater loop is not inline with the radiator loop.