I'm new in the coal burning world. The house I bought came with a EFM520.
I had two tons of buckwheat hard coal delivered and it took me about 1.5 weeks to get the hang of air/tooth settings. I initially thought I made a mistake and should have bought oil instead cause my ash pans were as heavy as a ash pan full of fresh coal. I assumed that because the coal was dropping down red hot that it was spent.
Needless to say I adjusted the air settings a little higher and now I'm very happy I didn't buy oil
Anyhow, I have a lot of unburned coal with little ash mixed in. I rinsed out the coal and dumped it to the side of my bin. Is it OK to mix in a bit of it in with the fresh coal and pass it back through the boiler? I hate to waste all of that coal.
The manual mentions that you need to manually crank the shaft in order to get a good count on the amount teeth per cycle. (or something like that) do you just kill power and put a wrench on the electric motor shaft or do you need to disassemble something?