Yanche wrote:Your ash looks similar to mine when burning red ash coal. Looks like there are some unburnt or partially unburnt pieces. Unburnt coal occurs when the fire is not burning across the entire width of the burn column. This occurs when there is light demand and the combustion blower turns off before a good robust burn establishes itself across the entire width of the burn column. The unburnt pieces could also be the so called bone, or slate. When I burn white ash coal there is more powder and less clinkers. My experience has been with Superior (red ash) and Blaschak (White ash). The Superior burns hotter, but produces more clinkers. The sometimes large clinkers are not a problem for the AHS130, the ashing grate is robust and will simply break and expel the clinker.
Good to know... Thanks Yanche!
Hey, since your running the same boiler, how much draft are you running at? I only get .01 movement on my manometer. On one hand, I think its good to operate at a low draft and I'm not seeing any issues yet. But, on the other hand, I can't seem to influence the draft upward either. This seems strange to me. Any thoughts?