Rear Heater Blower from alternative battery

[Jimzybee]

Hey,
First time poster.

I Would like to be able to run the ceiling fans which run off the back heater blower assembly in my VW T6 off an alternative battery (I have an ECOFLOW delta 2 lithium power station).
Anyone know how I could either bypass or intercept the power supply so I can run it off the ECOFLOW instead of the Van's main battery?

We sleep in the back when camping, and figured be nice to use the existing fan infrastructure instead of buying more fans and installing them in and just plugging them into the power station.

Thanks in advance!
James

 

[graham_e]

Interested if you got anywhere with this?

Looking to do similar in my shuttle - using the aux heater as a parking heater and then warm the van with the rear blowers off a leasure battery.

 

[scimmiettarossa]

Interested if you got anywhere with this?

Looking to do similar in my shuttle - using the aux heater as a parking heater and then warm the van with the rear blowers off a leasure battery.

I would be interested as well.. any schematic of this heater? and, by the way, there are a lot of different models (and operating modes) how can I understand my specific system from the vehicle codes?

 

[FWhite]

Interested if you got anywhere with this?

Looking to do similar in my shuttle - using the aux heater as a parking heater and then warm the van with the rear blowers off a leasure battery.

You probably want to run the Diesel Heater and its pumps from the leisure battery as well.
They draw dignificant current.
....
There are many threads active here on this or similar topics. It is going to be different if you have a T6 (easier) or a T6.1 (harder).
But.
I haven't seen no one that has done the upgrade from aux heater to parking heater *together with the shuttle rear heater* so far. Some claim they can do, some manufacturers offer specific kits. But no user *on this forum* has documented this whole process, as far I know.
I *think* that the procedure well documented on this Forum for the T6 (not T6.1) Van *should* work also for the shuttle with rear heater, but , again, I haven't seen that case documented. Less so for the T6.1.

 

[CAB]

I would be interested as well.. any schematic of this heater? and, by the way, there are a lot of different models (and operating modes) how can I understand my specific system from the vehicle codes?

You can get the VW build sheet for your van, it is a benefit of VIP membership of the forum.

https://www.t6forum.com/threads/vip-member-benefit-build-sheet-codes.5583/

 

[scimmiettarossa]

thanks for the info!
I'll go deep into it

Alternatively, I will choose an independent heater option