Maybe you don't get so much clinker with a thin fire because you are not burning so much coal or getting so much temperature to melt the ash which is formed? Let me know when IDSME are inviting people and I'll dust down the Stetson and mosey on over to the IDSME corrall.Yee Hah. All the best Tim >From: "Peter J. Cathcart" <peter.cathcart@xxxxxxxxxxxxx> > >Tim > >I'm not advocating thin fires all the time but those who really know how to >nurse their engines believe in them and it really works when you put the >effort in. The point is it's a great way to sort out clinkers. >Look forward to seeing you at IDSME anytime. > >Peter MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.