coal won't stop augering

coal won't stop augering

PostBy: nellie hieb On: Fri May 10, 2013 12:56 am

my prill coal stoker just keeps augering in coal and runs it over the burn plate into the ash pan. Had it since 88 . Blower doesn't come on? Just put in new control box. Any ideas/
nellie hieb
 
Stove/Furnace Make: prill

Re: coal won't stop augering

PostBy: freetown fred On: Fri May 10, 2013 10:18 am

Did it keep augering before you put in the new control box??? Was that the reason you replaced the box? Re-check your control wiring a couple times just to be sure you're tied in right.
freetown fred
 
Hand Fed Coal Stove: HITZER 50-93
Coal Size/Type: BLASCHAK Nut/Stove mix

Re: coal won't stop augering

PostBy: nellie hieb On: Fri May 10, 2013 8:30 pm

my coal wouldn't stop augering and discovered that the pulley on the motor was needing a new keyway and tightened up the set screws and also corrected the airflow. Also made sure that the screws that hold the cover on the airflow were good and tight. The pulleys really make difference and control a lot of things and most people don't think to look there first. I talked to the cool cat Grumpy T! He is sharp and had many fine suggestions to follow. It is cool here tonight and it is now purring like a kitten. Thanks for the help.
nellie hieb
 
Stove/Furnace Make: prill

Visit Lehigh Anthracite

Re: coal won't stop augering

PostBy: freetown fred On: Fri May 10, 2013 9:37 pm

Ain't it grand when a plan comes together:)
freetown fred
 
Hand Fed Coal Stove: HITZER 50-93
Coal Size/Type: BLASCHAK Nut/Stove mix

Re: coal won't stop augering

PostBy: LsFarm On: Sat May 11, 2013 1:21 pm

Hi Nellie, welcome to the forum, Since you are running a Prill, I assume you are out in Montana, Wyoming or the Dakotas ??

Fill in your signature with your location, as Freetown Fred says: nobody will steal ya!! :D

IF the wiring and control box [is this the aquastat? give us a part number] then there is a reason that the boiler isn't getting too hot.
have you cleaned out the fines under the burn pot daily/weekly?? If the fines are clogging the combustion air holes, then you won't get much heat from the coal and the auger will run and run, pumpong unburnt or partially burnt coa out.

You mentioned the auger running , but you didnt' mention if the fire is burning at 100%, is there ash and clinkers falling off the edges of the fire? or is it unburnt raw coal??

The auger in most stoker boilers will run as long as the water is not hot enough, So have you checked to see if the inside of the boiler is all clogged with soot? have you cleaned the boiler inside lately?? Checked the chimney flue for soot buildup?

Just fishing fr more info so we can help

Greg L
LsFarm
 
Stoker Coal Boiler: Axeman Anderson 260
Hand Fed Coal Boiler: Self-built 'Big Bertha' SS Boiler
Baseburners & Antiques: Keystone 11, Art Garland

Re: coal won't stop augering

PostBy: nellie hieb On: Sat May 11, 2013 11:17 pm

Hi Greg, thanks for the interest. I am 9 miles out of Newcastle , Wy. I morphed an 16x80 mobile into 3000 sq. ft. home and built an above ground pea coal bin and used my Dad's old grain auger to auger the coal up into the bin through a window and it works good and saves shoveling. Get the pea coal out of Gillette from I.C.M. for around $60 a ton. It cost a little to double up the duct work under the mobile but is a fantastic heat and will run me out of here when It works good. She is a big PINK Prill 200 and I lovingly call her "Big BerthA." Had her since '88. I have been through a couple of tranny's and my fav was the old hub city but can't get parts for it no more. Currently have a new trans. I put in last year and new control box 3 mo. ago. It is just a regular coal furnace with a burner plate and and 8' auger that runs through the bottom of bin and not a boiler. Kinda simple to work on really. Unless boiler has a new meaning in "furnace talk." Today i turned the thermostat (that's new too) down to 50 degrees and it would still throw some heat in the house. I think it is supposed to auger coal in once during the hour just to keep hot coals on burner plate but never used to put heat in the house. It is the original Honeywell timer thingy and am wondering if that is getting bad. About the only thing I haven't replaced! I keep it really clean and oiled and check grease in tranny. All belts good and fixed keyway on tranny pullley. Would like to put one and a half inch pulley on tranny motor shaft as used 16ton of pea coal this year. YIKES! Kinda glad it is summer but it will be cold again and would like it to work properly. Gettin' too old for this stuff!!!!Anyway, if anybody knows why it still throws heat even though the thermostat is on 50 I would appreciate the input. At my wits end but love living in the country.I have wired in a lot of control boxes with the last one costing $276 . I could wire those in blindfolded and the transmssions as well. Rotator bar is also only a yearold and have cemented the burner plate so no air leaking and adjusted the air and belts according to manual. I don't know-- maybe it's a sign. Well, thanks for your help. I am new at this site- so appreciate the patience.
Nell - Timer set at 100-150 and 200 cut out.
nellie hieb
 
Stove/Furnace Make: prill

Re: coal won't stop augering

PostBy: LsFarm On: Fri May 17, 2013 6:57 pm

OK, so it's an actual furnace.. many people will call a boiler a furnace and it gets us off on the wrong track.

With a furnace, there is no way to shut off some travel of heated air. with a boiler, either zone valves or circulator pumps stop the travel of heated water.
So with a furnace, the timer runs the stoker every 30 minutes or every hour, [whatever works with your coal, chimney, and firepot], this heat from the freshened up fire must go somewhere, most goes up the chimney, but some will travel down the ductwork to the house..

So if you are getting unwelcome extra hot air through the ducts.. first is to make sure the circulator fan is not running along with the stoker, it should only come on if the thermostat is calling for heat, and the heat in the air jacket or heat exchanger is warm enough to close a switch. This temperature switch keeps the furnace from circulating cold air..

So if the circulation fan is NOT running but you are still getting hot air through the ducts, it is either traveling by 'gravity' [hot air rises] or your ductwork now has a pull on it from an open duct in a room with a 'chimney effect' leak to the outside. SOMETHING has to be allowing or pulling air through the ducts..
Have you changed any ductwork, insulation, windows, structure in the 'morphed' house?? If you didn't have this 'ghost heat' before, what's different to have it now??

How about a photo of the 'big Bertha' Prill ??

Greg L..
LsFarm
 
Stoker Coal Boiler: Axeman Anderson 260
Hand Fed Coal Boiler: Self-built 'Big Bertha' SS Boiler
Baseburners & Antiques: Keystone 11, Art Garland

Visit Lehigh Anthracite