keystoker 90

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xmanjeff
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Post by xmanjeff » Sun. Jan. 16, 2022 11:21 am

would anyone venture to guess what may be going on here , coaltrol running at 100% feed rate , vaccumed fines out just recently , fire burning unevenly , fire seems to start a ways down the grate , , and not getting the heat out of it that i should

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Benny
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Post by Benny » Sun. Jan. 16, 2022 11:59 am

Holes in grate maybe plugged

 
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nepacoal
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Post by nepacoal » Sun. Jan. 16, 2022 12:06 pm

Looks like the grates have a build up of furnace cement down each side, slowing the feed down. Have you recently reinstalled the grates? The grates need to be smooth for the coal to feed evenly.

 
xmanjeff
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Post by xmanjeff » Sun. Jan. 16, 2022 12:11 pm

i have never done anything to the grates , also , should the fire start up the grates further ?


 
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nepacoal
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Post by nepacoal » Sun. Jan. 16, 2022 12:18 pm

Hard to tell where that wonky fire starts... But it should start burning right at or just past the first set of holes. If your grates are smooth, you may have a blockage or two in front of the pusher bar. Big chunk of coal or a rock blocking the feed.

 
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nepacoal
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Post by nepacoal » Sun. Jan. 16, 2022 12:20 pm

Have you ever used wet coal? Many, many issues start with using wet coal in a hopper fed stoker.

 
xmanjeff
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Post by xmanjeff » Sun. Jan. 16, 2022 12:25 pm

ill check for a blockage when i can shut it down , most coal is dry and almost dusty
thanks for replies

 
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nepacoal
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Post by nepacoal » Sun. Jan. 16, 2022 12:31 pm

Excessive fines can also cause a wavy fire line, but not that wavy... Let us know what you find.


 
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2001Sierra
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Post by 2001Sierra » Sun. Jan. 16, 2022 1:34 pm

This is what grates look like on new stove.
grate.JPG
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nepacoal
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Post by nepacoal » Sun. Jan. 16, 2022 2:27 pm

Not a lot of quality control going on there. Mine from 2016 looked polished compared to those...

 
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WNY
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Post by WNY » Sun. Jan. 16, 2022 3:57 pm

Definately a little wonky, it should be straight across burning, or at least closer than what yours is.
make sure all the holes are cleaned out in the grate (1/8"? drill bit works good). Fire should only burn from Holes foward. If it's getting too far back, the grates might be leaking in the back too.
Make sure the grates are sealed on the sides/edges and in the back and smooth.
Make sure UNDER the grate is cleaned out too. (you can pull the fan off the back and vacuum under the grates if you have a small vacuum hose, without removing grates.
i;ve had my Keystoker for over 16 years with no major issues. just replaced the direct vent blower, finally rotted out.

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