WARM AS TOAST wrote:Having a similar problem. Fired up a brand new AA130 about 2 weeks ago. Took a while doing a lot of control adjusting to keep a fire. Have had a fire since last Thurs.(Oct 1) Boiler temp range is from 200 to 240. Ashes are ugly. Also a lot of clinkers. Trying to coordinate the anthrastat so as to get a better burn. I'm not new to coal, so I'm sure part of the problem is an ugly batch of coal. I know when it gets cold, I should get a better burn versus idling. It's one big experiment.
IIRC, someone had trouble when he started up his big AA, had a poor burn in the fire pot and a lot of unburned coal in the ash. He thought his coal was the problem too. It had something to do with building the fire too low on the grate. I think you dump a big pile of ash on the grate to start and then build a fire, it puts the burn higher in the pot?