Think tank..

[Brill-o]

I found what looks like some kind of heater (I think).

Whilst cleaning and checking the spares that came with it, I found this in a hinged compartment inside the pass seat frame behind the fire extinguisher box-- which is to the immediate right, inside the entrance door area.

It has an outside (of the tank) thermostat and copper lines running to it. The water fill tube for the rad' is directly attached to it on the outside of the bus

Can anyone here identify this? (See pic-)
(I found the original breakdown "safety flag" in there, too!)

In addition to this I tried the interior fans and the overhead passenger privacy lamps which I store in the boot for now, and they all worked and can be reused if so desired.

More to come-

Cheers..

[TomC]

Expansion tank for the radiator?  Extra lines being for de-aeriating?  Maybe a Brill expert will know?  Good Luck, TomC

[Brill-o]

Hey Tom-

Thanks for the contemplation- I believe you're right.

I don't know what all the extra lines are for?

Anyone else care to take an educated guess?


Cheers..

[DrivingMissLazy]

Tom, you are starting to sound like Marc now. LOL
Richard

Expansion tank for the radiator?  Extra lines being for de-aeriating?  Maybe a Brill expert will know?  Good Luck, TomC

[Brill-o]

Ok-

How's about some uneducated guesses?

Over 150 people have viewed this post---Surely, some of you can take a shot at it?

Come on folks, throw me a bone here!

Thank you.


Cheers..

[Hi yo silver]

How 'bout an alcohol tank, for deicing brake lines in the winter...Hey, you said throw you a bone.  Is that like brain-storming?  Keep us posted!
Dennis
Hi Yo Silver!

[Hi yo silver]

Whoops!
Reread the post.  Missed the part regarding it being attached directly to the radiator fill.  Sorry!
HI yo

[HighTechRedneck]

Doesn't seem to be much doubt that it is a coolant expansion tank since it is connected to the radiator fill tube.  As for the copper lines, if there is any doubt as to their function, are they accessible enough to trace where they go to?

[NJT5047]

I'm gonna vote for expansion tank too.      The copper lines could be air return lines...to vent high places in the cooling system?    Where's all those "Brill" guys when you need them?   
Do you have a manual for the coach?  Be nice to have both parts and service mans.  Surely someone has them.  They can be copied onto a CD fairly inexpensively.   While no parts are likely to be available, a parts manual would be invaluable to ID odd parts.   OR, start taking things apart until you run down the lines.   Looks like the tank could use a little "maintenance" anyway.   Be sure to take good pix of the plumbing to the tank before you disassemble anything...i've made that mistake a couple of times...but, there are plenty manuals for my bus. 
Did you every get the engine running for more than a few seconds? 
Good Luck,  JR

[Dale MC8]

OK, since you asked for guesses, here's a giant WAG. Could it be windshield washer fluid heater tank? Didn't think so, but you did ask for guesses.
Dale