The V8 Owners Forum -

on my v8 at the moment i have the vaporiser inline from the engine through the vaporiser to the heater matrix and then back to the engine = works a treat as the heater has no water cutoff to control the temp just flaps ....
problem now is i'm putting the engine in a newer van and now the heater has a control valve that shuts the water flow to control temp , so now no open loop .... so if i select cold on the heater NO flow via the vaporiser ..

any ideas please ?

thankyou ...keith

2x T-pieces. Plumb the vapouriser in parallel with the heater. Enough water circulates to go through both rather than it all going through one of them. All of my LPG conversions have been like that.

Chris.

thankyou Chris , have you got any pictures please

Remove the pipes you have currently connected to the vaporiser. I assume you had the flow (inlet to heater) pipe split and connected to the top and bottom of the vaporiser

Re-assemble that pipe using a T piece (copper pipe is good with a Yorkshire T joint). Now cut the other heater pipe and reassemble it using a second T piece.

Connect the T piece of the flow (heater inlet) to the bottom inlet of the vaporiser and the heater return T piece to the top connector

Done!