I ran the Eberspacher heater on our new Westy for the first time today, going camping in 2 weeks time and wanted to check that it worked...!
The good news is that it worked

. The bad news......I checked under the van and the outlet pipe from the heater (the metal one that runs across the width of the van and exits on the nearside) is corroded in two places (on the bends) and as such is leaking fumes.
Obviously the leak isn't inside the van, but I do have concerns that the fumes aren't very safe

and will fill the awning apart from anything else..... So, does this outlet pipe have to be metal? Can I replace it in copper for example? Or, can it be a flexible plastic pipe?
Thanks in advance peeps.......
