I’m putting off this job as I’m scared of cutting the hole in the floor for the heater pipe to come into the van. I realise that chassis rails and out riggers should be avoided but I’m worried that I’ll wish I had put the propex somewhere else underneath and I don’t want more than one hole in the floor. I have an lpg tank underslung. So where should the underslung propex go? I suppose somewhere at the back of the cargo floor so that the heat comes up under the rock roll bed. I’m guessing easier access when fitting rather than between the front seats and out the heater vent there. Or maybe under the cupboard where the westy berlin water tank used to be. That way gas pipes could be t-ed off the hob quite easily. Any pictures of someone else’s underslung propex installation very much appreciated.