ahs 130 efficiency

I think you have answered your own question about the quality of the coal. That's just my opinion, others may vary but................... Do an experiment. Go to the local hardware store, Agway, Ace, what ever you have in your area, buy 4 or 5 bags of Blashak coal, pea, dump that in your hopper and burn that. If your problem stays the same, you have other problems such as bad draft, mechanical or electrical problems.etc.etc.

mozz

I think you're right, but being new to all of this I wanted to ask. I'll give your suggestion a try.

Coal boilers do have a fair amount of standby losses. My workshop has not dropped below 50 deg. F. yet this winter due to the heat loss fromt the boilers. I have insulated the piping and the AA130. The keystoker has the factory jacket on it but a small amount of insulation is missing on the flue connection side of that.

The AA130 does seem to chew up coal at a good clip.