Removing Midship Heater but not defrost.

[Phoebus]

Hey everyone.

We have a 2000 International, about 36’ in length.
Anyways, we are trying to remove our only midship heater (our bus is form the Southern Alabama, so it only needed one I guess lol). I want to know how to check if the coolant lines running for the midship heater also power the defrost and drivers heat.
I’ve done the research and understand the process of removing the heater: turn off the intake/outage valves, have pans ready, cut the lines in a logical place so it doesn’t make a mess in the bus, etc. However we may reconsider taking it out and actually design around and utilize it if it means losing our defroster.

Any help appreciated, thanks friends!

 

[Phoebus]

So basically: how do I check if I will lose the defroster among with removing the midship heater.
I’m trying to unscrew as little as possible around the drivers seat/ under the steering wheel to try and find the solution but I’m afraid I will have to do some surgery to find out which lines run where.