Hi David,
Good to be here at last!
Thanks for asking this, and now, at last, thanks to Richard and Bev and that previous discussion - I've got it! LPG autogas runs off liquid fuel from the tank, and of course, we need vaporised gas for appliances.
My black tank only has the one valve assembly near the top, so I'm assuming it's all liquid feed (there are five ports on it, only two of which appear to be used - the inlet and a servo controlled outlet - I guess it's possible that one of the others could be a blanked off feed to gas not liquid LPG)
There again, presumably, there's a regulator somewhere that converts the liquid into gas before going into the engine, so maybe there's a possibility of taking a feed off there - though that would require the LPG system to be powered up to open the values etc.
Oh well, no easy answer - it's just annoying that I pay 70-80p a litre for LPG and because I've only got the 3.9kg bottles in my van, which cost about £16 to replace with, i think about 8 litres of propane, that works out at about £2 a litre
As my propex heater is thirsty, it makes a difference!
Anyway, looking forward to being a member here, thanks for encouraging me.
I'm going to start off investigating the POIs
Cheers to all
John
Porthtowan, Cornwall
PS not quite a VW van - a 1987 Autosleeper conversion Talbot Express 2ltr petrol/LPG