can't build heat

i'm burning a pioneer top vent with a barometric damper, power vent, and manometer. i'm unable to get the stove temp past 420 degrees. my max feed is set properly with an inch of ash at the end. i've tried several settings on the bd, when i set it at 4 the manometer shows 4, the same when i set it at 3. i presently have the weight all the way to the right with the pvent set at 40% the bd is open 1/3 and the manometer is at 2 1/2. this is the setting that the stove burns hottest. i know i have to be doing something wrong but what? bd is plumb and level, manometer mounted level on wall and fitting is mounted 20"above stove. i've read this forum and can't find my problem. also, how do you measure the over the fire draft?
thanking you in advance

paul

I noticed from your previous post your max is at 43 & 1" from edge, my max is 45 & ashes are 3" from edge. Why the difference? Coal quality, or maybe some combustion holes on your upper grate are clogged.

phulklip wrote:i'm burning a pioneer top vent with a barometric damper, power vent, and manometer. i'm unable to get the stove temp past 420 degrees. my max feed is set properly with an inch of ash at the end. i've tried several settings on the bd, when i set it at 4 the manometer shows 4, the same when i set it at 3. i presently have the weight all the way to the right with the pvent set at 40% the bd is open 1/3 and the manometer is at 2 1/2. this is the setting that the stove burns hottest. i know i have to be doing something wrong but what? bd is plumb and level, manometer mounted level on wall and fitting is mounted 20"above stove. i've read this forum and can't find my problem. also, how do you measure the over the fire draft?
thanking you in advance

paul

Any restrictions on your combustion fan? Is the squirrel cage clean? I'm new at this, but these things popped into my head to ask you.

Do you have the weight on the left or right side? If you are using the right slot (vertical mount) and you have the weight all the way to the right, that is .08 or more. That means you are sucking more heat out of your stove.

Your manometer should only read around .02-04 depending when the stove is running good.

Where are you measuring the heat output? On the front/sides of the stove? with a magnetic thermometer?

How are you distributing the heat from the stove?

My Stove runs around 400-450 on the front part above the door and it cranks out the heat and keeps the upstairs 68-70.

there are no restrictions, everything is clean

with my present batch of coal i had to increase the max feed to 53, i'll shut down the stove this weekend and check the combustion holes

the weight on bd is on the left for a horz installation. the heat output is measured on the stove front above the door.the heat is distributed by a 12" osc fan with a speed control

thanks again for your replies

paul

spc wrote:I noticed from your previous post your max is at 43 & 1" from edge, my max is 45 & ashes are 3" from edge. Why the difference? Coal quality, or maybe some combustion holes on your upper grate are clogged.

My max setting is 35 to keep hot coals from going over the edge. I think it has a lot to do with the coal quality.

phulklip wrote:i'm burning a pioneer top vent with a barometric damper, power vent, and manometer. i'm unable to get the stove temp past 420 degrees. my max feed is set properly with an inch of ash at the end. i've tried several settings on the bd, when i set it at 4 the manometer shows 4, the same when i set it at 3. i presently have the weight all the way to the right with the pvent set at 40% the bd is open 1/3 and the manometer is at 2 1/2. this is the setting that the stove burns hottest. i know i have to be doing something wrong but what? bd is plumb and level, manometer mounted level on wall and fitting is mounted 20"above stove. i've read this forum and can't find my problem. also, how do you measure the over the fire draft?
thanking you in advance

paul

Maybe thats all the hotter your coal will burn.

Maybe your house is real real cold and drafty .

Be sure all doors and windows are closed

Coal quality, combustion air, etc...

It might just be the restriction of the grate size and stove size (BTU Output), my Keystoker would get about 450-475 at max feed rate and with hot coals pushing off the end.!!