T6 Multivan parking heater (no auxiliary heater?)

[muddslinger]

I am looking into buying a T6 Multivan, and I really like the idea of having a parking heater.

I heard that, if the Multivan already has a coolant heater (auxiliary heater, I think) it is much easier to retrofit a parking heater. Also, if it has auxiliary heater I think it will also have a 2nd battery, which also makes things easier.

My question is, I am correct in my assumptions? And is it worth getting a Multivan that already has an auxiliary heater, or it is not such a big deal to add a parking heater afterwards?

Also, if the car has the auxiliary heater and I add a parking heater, can it be programmed to be controlled with the same console that controls the auxiliary heater (next to the reading lights in the headliner)?

Thanks a lot.

 

[muddslinger]

Also if the description says "Additional heating (hot water) programmable with auxiliary heating function: 2nd battery", does this mean the auxiliary heating function is the parking heater, or maybe that it can be programmed into it if retrofitted?