how old is your eberspacher and installation?

[NormanS]

My supplier still has high sulphur diesel, and I was having no end of trouble with the burning tube (not the heat exchanger) coking up. At present I am feeding the brute with expensive white derv, and it is behaving perfectly. It feeds from a dedicated tank.Twice a year, I let it have 3 or 4 litres of paraffin, in the possibly mistaken belief that it clears soot from the heat exchanger. I have it arranged so that this can be done by operating a two-way cock.
My Eber is used a LOT, particularly at this time of year, and I could not do without it. If I could find a source at a reasonable cost, I would probably use paraffin exclusively.

 

[David2452]

hmm..thumbing through the handbook for my volvo 041D now trying to work out how to de-coke it. Failing that I suppose I'm going to have to work out how to run some much wider ducting for one of these new fangled jobbies...thank goodness for asda fan heaters...

I wouldn't worry too much, the Volvo 041 is basically a Wallas, different burner principle to Webasto / Mikuni & the other one, much less prone, though not exempt from coking, spares, service and advice is / are available from Espar in Plymouth.

 

[VicMallows]

At present I am feeding the brute with expensive white derv, and it is behaving perfectly. It feeds from a dedicated tank.

I suppose that does also raise the question of whether you can legitimately still claim the 60/40 concession for your red diesel?

 

[Heckler]

We've heard that too. Has anyone got any idea how much kerosene you'd need to run it for the appropriate lenght of time? I was thinking a couple of hours? Would you just put it in fuel jerry can and run the eber fuel hose into it?

I did an article for PBO after finding an advice note on the USA Espar site that they advised running on kerosene ( paraffin) for an hour to decoke them. I stripped a D2, took pics of the coked combustion chamber, then reassembled and ran for an hour on paraffin and stripped it again, it was spotless! So not a fallacy, sorry David! Eber UK were not happy, one guy was really huffy until I produced the advice note!
Stu

 

[David2452]

Indeed Stu, but as I said, sometimes it works, others it doesn't, mostly not, you have a sample of one to go by, I have many, I also recall a similar a thread where others tried it and it failed. In it's favor it can't hurt, unless of course you have any heater with boost setting. Espar never advised running to decoke, only to remove soot deposits prior to spending money on warranty claims, an entirely different kettle of fish.

 

[NormanS]

I suppose that does also raise the question of whether you can legitimately still claim the 60/40 concession for your red diesel?

Would I tell a lie? Moi, pure as the driven snow.