Newbie with DF520, need some help with tuning...

Re: Newbie with DF520, need some help with tuning...

PostBy: Pa Dealer On: Thu Oct 30, 2008 3:44 pm

[Big Jim weighed in. If you are getting coal from the Wilkes-Barre area, there is a source up there that is selling poor quality coal and lots of people have complained about it.]



Bunch of red ash coal being sold there. :(
Pa Dealer
 
Stoker Coal Boiler: EFM 520 DF
Coal Size/Type: Rice
Other Heating: Keystoker
Stove/Furnace Make: EFM DF 520
Stove/Furnace Model: Keystoker

Re: Newbie with DF520, need some help with tuning...

PostBy: novachick On: Thu Oct 30, 2008 9:40 pm

Here's some pictures from tonight. I bumped the air up to 6 tonight, so I'm at 4 teeth and 6 air. I was at 4 and 5 air over the past few days, but with both those settings, I had no ash ring, so I sent up to 6 to see if that would help with the unburnt coal. I plan on letting it run like this for tonight and checking out the ash in the morning and making more adjustments if necessary. 6 air defintely brought the ash ring back, but there is still unburnt coal in the front. You can really see it in the pictures, especially in the ash bucket photo. Take a look and let me know what you think.

As it's stoking:
Image

Right after it stops stoking:
Image

About 10minutes after stopping: (You can really see the difference between the front and back here)
Image

Ash bucket: (bottom of the picture is what comes off the front of the burner)
Image
novachick
 
Stove/Furnace Make: EFM
Stove/Furnace Model: DF520

Re: Newbie with DF520, need some help with tuning...

PostBy: Scottscoaled On: Thu Oct 30, 2008 9:55 pm

Those lookpretty good to me.looks like a good ash ring. From the ash pan it doesn't look like you have all that much unburned coal in the pan. Looks more like low grade coal. But I'm not really all that experienced :) Scott
Scottscoaled
 
Stoker Coal Boiler: EFM 520x4, 700. Van Wert 1200.
Hot Air Coal Stoker Furnace: EFM 150, Keystoker 150
Coal Size/Type: Lots of buck

Re: Newbie with DF520, need some help with tuning...

PostBy: coal berner On: Thu Oct 30, 2008 10:09 pm

Pa Dealer wrote:[Big Jim weighed in. If you are getting coal from the Wilkes-Barre area, there is a source up there that is selling poor quality coal and lots of people have complained about it.]



Bunch of red ash coal being sold there. :(

I will take good deep mine red ash coal over any white ash anyday of the week
coal berner
 
Stoker Coal Boiler: 1986 Electric Furnace Man 520 DF
Stove/Furnace Make: Electric Furnace Man
Stove/Furnace Model: DF520

Re: Newbie with DF520, need some help with tuning...

PostBy: daluds On: Thu Oct 30, 2008 10:16 pm

Nice fire!
daluds
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice
Stove/Furnace Make: EMF
Stove/Furnace Model: DF-520

Re: Newbie with DF520, need some help with tuning...

PostBy: stoker-man On: Fri Oct 31, 2008 6:06 am

Looks good to me too.
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: Newbie with DF520, need some help with tuning...

PostBy: novachick On: Fri Oct 31, 2008 8:17 am

Thanks everyone! I think we have our setting! Here's the ash pan this morning after burning at 4 teeth, 6 air all night:

Image

Thanks again!
novachick
 
Stove/Furnace Make: EFM
Stove/Furnace Model: DF520

Re: Newbie with DF520, need some help with tuning...

PostBy: Coal Guzzler On: Fri Oct 31, 2008 8:23 pm

I'm new to the DF 520 and trying to dial mine in also. I was wondering, because the unburnt coal is in the front, could the problem with the area be with the ash bin door or fire door not being sealed up good? It just seems like a coincidence that the unburnt coal is onlly in the front and that's also where the doors are.

I've got my EFM at 4 teeth and 4.25 air. I originally had it at 4 and 4 but saw some unburnt coal in the ash. Not much difference at 4.25.
Coal Guzzler
 
Stove/Furnace Make: Saey Stove/EFM Boiler
Stove/Furnace Model: Hannover Stove/DF 520

Re: Newbie with DF520, need some help with tuning...

PostBy: novachick On: Mon Nov 03, 2008 3:01 pm

"I was wondering, because the unburnt coal is in the front, could the problem with the area be with the ash bin door or fire door not being sealed up good? It just seems like a coincidence that the unburnt coal is onlly in the front and that's also where the doors are."

I agree it's strange that it's up front only. I looked at the doors and they seem to be sealed well. I'm still messing with it a bit, because sometimes there is a lot of unburnt coal there and other times at the same setting there is hardly any. I'll let you know if I figure anything out.
novachick
 
Stove/Furnace Make: EFM
Stove/Furnace Model: DF520

Re: Newbie with DF520, need some help with tuning...

PostBy: stoker-man On: Mon Nov 03, 2008 4:59 pm

Since the air comes in from underneath the coal, I don't see how a bad door gasket would affect anything. Since the front of the pot burns well on occasion, you can probably rule out a bad burner plate. On an old stoker, I would guess the worm is worn out.
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: Newbie with DF520, need some help with tuning...

PostBy: Scottscoaled On: Mon Nov 03, 2008 9:53 pm

Wouldn't the ash from the front fall toward the back because of the ash buildup on the ledge below :whistle: :) Scott
Scottscoaled
 
Stoker Coal Boiler: EFM 520x4, 700. Van Wert 1200.
Hot Air Coal Stoker Furnace: EFM 150, Keystoker 150
Coal Size/Type: Lots of buck

Re: Newbie with DF520, need some help with tuning...

PostBy: novachick On: Tue Nov 04, 2008 9:26 am

stoker-man wrote:Since the front of the pot burns well on occasion, you can probably rule out a bad burner plate.


I'm finding those occasions to be few and far between. We're back to a lot of unburnt coal in the front again and it's definitely coming from the front of the fire. I can see a layer of unburnt coal on the front of the "ash ring". It sits on top of the actual ash. You can see the difference between the front and the back in the 3rd picture I posted. In the back of the fire it's all ash, no coal at all. No setting I have tried has consistantly gotten rid of the unburnt coal.
novachick
 
Stove/Furnace Make: EFM
Stove/Furnace Model: DF520

Re: Newbie with DF520, need some help with tuning...

PostBy: stoker-man On: Tue Nov 04, 2008 12:21 pm

Is the pot level?
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: Newbie with DF520, need some help with tuning...

PostBy: novachick On: Wed Nov 05, 2008 8:00 pm

I can't really tell with it running, I think I'd have to shut it down to check that, right?
novachick
 
Stove/Furnace Make: EFM
Stove/Furnace Model: DF520

Re: Newbie with DF520, need some help with tuning...

PostBy: stoker-man On: Thu Nov 06, 2008 6:59 am

Yes.

Use a level along the top of the cabinet. Was the base leveled on the floor? It's probably not a leveling problem, but just curious.
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove