Can't get good burn time with sub-bit coal

Will I'll try the insulation on duct work and see if some stoker coal make different in the heat.

How are you controlling the chimney draft...stove pipe damper or baro damper? If you have excessive draft you might be losing lots of heat up the chimney. You might want to get a manometer/draft gauge to see what's going on with the draft.

Baro damper and manual damper but i dont use the manual all the draft meters are 100 or more but I'll keep checking

Here's a manometer that would work.

http://www.ebay.com/itm/DWYER-MARK-2-MA ... 4160994b26

Will I just went to check fire if I open ash door I get more heart so I must not be getting the air in below fire any help I guess I can cut a extra hole in ash door. Please help

dmay,
I believe someone with your furnace has done it. Might help,since you need to open the door for more air draft.
When shaking down are you getting as much ash as you can,to see a glow underneath.

Dennis I'm getting a pan full every 12 hrs I'm getting red glow on the ash pan I think I'm shaking enough. I was surprised when I opened the ash doorand got more heat because I had been tring to get heat by spinning the ash door draft and there was no temp differents on furnace thanks for the help Dennis

I give up one day works far next poor I can't get the samething everyday the fire don't burn same everyday

dmay,
can you take some pics. so we can see what you are working with. Somewhere along the way we are missing something.
Take pics. of chimney and pipe hook-up,baro/MPD
pic. of chimney exterior and roof
pic. of furnace with draft controls/spinners
and what ever else you think might be a problem

I tried

Dennis wrote:dmay,
can you take some pics. so we can see what you are working with. Somewhere along the way we are missing something.
Take pics. of chimney and pipe hook-up,baro/MPD
pic. of chimney exterior and roof
pic. of furnace with draft controls/spinners
and what ever else you think might be a problem

I tried but I don't know if it worked all in have in my phone pm me your email I send you the pic

I added insulation. On duct work. I hope I can get it to work hope the pic where OK

well I think I find the problem. I didn't have a good draft I put a piece paper in good hot fire an it fell down instead of flying up and now it will pull the paper up chimney. Thanks for the help every body and Dennis thanks for the extra. Help

what was the cause of your poor draft?

I had 6 inch stove pipe all the way from stove to the top of chimney. Changed the pipe above the roof to 8 inch now it act the way it is suppost to we will see it supposition to turn off cold the next couple days

try 8" from the stove and you'll have even better luck.