Van Wert VA600 rebuild

Re: Van Wert VA600 rebuild

PostBy: alpineboard On: Thu Oct 22, 2015 9:29 pm

Sorry, I had it on 3, and was thinking of going to 4. I misread the slide scale, when I wrote the last post. I did read the manual and set it on 3 a few weeks back. All set now, thank you.
alpineboard
 
Stoker Coal Boiler: Van Wert 600
Hand Fed Coal Boiler: Tarm 202
Hand Fed Coal Stove: Harman HXL, Crane 88, Crane 404
Other Heating: Solar

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Re: Van Wert VA600 rebuild

PostBy: windyhill4.2 On: Thu Oct 22, 2015 9:35 pm

windyhill4.2 wrote:My understanding is that too little air causes the fire to burn lower in the pot..... which would mean MORE heat to the rings,not less , being a non-expert,i may be wrong. :)

Had my brain in reverse or neutral ,too much air would make the fire burn lower in the pot risking damage to the pot :doh:
windyhill4.2
 
Stoker Coal Boiler: 1960 EFM520 installed in truck box
Hand Fed Coal Stove: Crane 404 with variable blower
Coal Size/Type: 404-nut, 520 rice ,anthracite for both

Re: Van Wert VA600 rebuild

PostBy: anthony7812 On: Sat Oct 24, 2015 7:13 am

Dont worry so much about ruining your rings, they are built to take it. I run mine about 4ish on the scale and I get a nice white gray tan granola ash with little to nun unburnt coal. I tried higher settings but it just made more fly ash accumulation it seemed. Its best to make slow moves and hunker down on a setting for a day or 2 to see full results. Your gonna see in the dead of winter that hole pot have a nice glowing fire so trust me those rings arent as fragile as you think. So I have finally seen first hand for the first time an EFM running. Im very glad I went with a VW. The 520 is a great machine too dont get me wrong but the VW is such a wonderful hands off simple machine that does the job. Alpine your gonna be very satisfied with the 600 you have, good luck! At the end of the season thier a few small things i did for clean up I will pass along when we get thier.... ;)
anthony7812
 
Stoker Coal Boiler: VanWert VA 400
Coal Size/Type: Buck/Anthracite

Re: Van Wert VA600 rebuild

PostBy: Richard S. On: Sat Oct 24, 2015 8:32 am

StokerDon wrote:Ha! Ha!!! Another one lit!

Nice! Air on 2? isn't that a little low?

-Don


Depends on the coal, usually 3 is good. We have ours on 2 right now but have had it as high as 5 or 6.

Take your tub and set it aside. Turn it up to 3, if the ashes on the new tub look better set it aside and turn it too 4. When you get to the point turring it up has no affect set it back and leave it there.
Richard S.
 
Stoker Coal Boiler: Van Wert VA1200
Coal Size/Type: Buckwheat/Anthracite

Re: Van Wert VA600 rebuild

PostBy: alpineboard On: Sun Oct 25, 2015 7:13 pm

The ashes from burning with the air setting at 3. Overall looks very good, just a few black pieces here and there that did not get 100% burned, probably almost there but not 100%.
I moved the air to 4 just to see if there is any difference. These are the flame pics on 4 air setting, there is not any noticeable difference , compared to 3 air setting. The camera is not picking up the blue in the flame.
The flame is consistent in its density and width from its base to almost the top of the ceiling. Near the ceiling of the burn chamber the flame tapers inward slightly and a few of the remaining flames are touching the ceiling. I am guessing that it is burning quite a large percentage of the volatile gases. Reason being , I have not smelt anything outside yet, and it is overcast, 50 degrees and low barometric pressure. That being a day to smell something would have been today.
I kind of wish Doug was around to see this.
Oh, and if I have not thanked any one lately for the help/guidance/expertise/knowledge,... thank you all, much appreciated.
This is turning out to be a great item to play with.

Update: Fly ash #4 air setting pic shows ash build up after only a couple hrs, firing for 10 to 15 / hour. The ash is building up on the interior sidewalls as well. This was not there at all while operating on air setting #3. While on #4 setting there are noticeably bigger fused ash chunks hanging on the pot edge. So it probably is burning a bit hotter. But you may be losing that heat to a stronger draft up the chimney....higher air flow...? I am seeing how those little black pcs are making there get away. It appears that they planned this ahead of time. Look, I know we are all on fire , but we need to relax and think clearly. Lets get out as close to the edge as possible and when that fan shuts off, that's our chance. Because when it turns back on, it will not be hot enough to burn the rest of us, that are the closest to the edge, from there it is easy, just ride the wave and make a jump for it. I will see you in the ash bucket. good luck everyone.
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alpineboard
 
Stoker Coal Boiler: Van Wert 600
Hand Fed Coal Boiler: Tarm 202
Hand Fed Coal Stove: Harman HXL, Crane 88, Crane 404
Other Heating: Solar

Re: Van Wert VA600 rebuild

PostBy: waldo lemieux On: Mon Oct 26, 2015 12:53 am

alpineboard wrote: So it probably is burning a bit hotter. But you may be losing that heat to a stronger draft up the chimney....higher air flow...? I am seeing how those little black pcs are making there get away. It appears that they planned this ahead of time. Look, I know we are all on fire , but we need to relax and think clearly. Lets get out as close to the edge as possible and when that fan shuts off, that's our chance. Because when it turns back on, it will not be hot enough to burn the rest of us, that are the closest to the edge, from there it is easy, just ride the wave and make a jump for it. I will see you in the ash bucket. good luck everyone.


:what: Rob pls check your co detector. :rofl:
waldo lemieux
 
Stove/Furnace Make: efm
Stove/Furnace Model: s-20

Re: Van Wert VA600 rebuild

PostBy: Richard S. On: Mon Oct 26, 2015 7:03 am

alpineboard wrote:The ashes from burning with the air setting at 3. Overall looks very good, just a few black pieces here and there that did not get 100% burned, probably almost there but not 100%.


You'll never get it 100% those ashes look real good. The only time I have ever seen them near 100% was in a house my Uncle had, the tenants had moved out and it was Spring. It must of been just running off the timer most of the day.

I moved the air to 4 just to see if there is any difference. These are the flame pics on 4 air setting, there is not any noticeable difference , compared to 3 air setting. The camera is not picking up the blue in the flame.


If you are not seeing any difference in the ashes between 3 and 4 leave it at 3.
Richard S.
 
Stoker Coal Boiler: Van Wert VA1200
Coal Size/Type: Buckwheat/Anthracite

Re: Van Wert VA600 rebuild

PostBy: alpineboard On: Mon Oct 26, 2015 7:14 am

W, That is a good point , always check the co detector. Yes , Rich, I do not think you can totally eliminate those partial burned black pcs. , due to the on/off cycling of the thermostat/aquastat controls. I am guessing that those blk pcs will be reduced when it gets colder and the demand increases, so the unit will have a longer duration burn time. But , yes , when I break up those chunks/fused larger pcs, there is not a thing in there that is unburned. It is already back to 3 setting, I do not want to deal with that fly ash.
alpineboard
 
Stoker Coal Boiler: Van Wert 600
Hand Fed Coal Boiler: Tarm 202
Hand Fed Coal Stove: Harman HXL, Crane 88, Crane 404
Other Heating: Solar

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Re: Van Wert VA600 rebuild

PostBy: Rob R. On: Mon Oct 26, 2015 7:56 am

The air should be adjusted based on the amount of ash on the stoker under full load, not the appearance of the ashes. Again, the manual discusses this in detail.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Coal Size/Type: Lehigh Rice
Other Heating: Dad's 1953 EFM Highboy

Re: Van Wert VA600 rebuild

PostBy: Richard S. On: Mon Oct 26, 2015 8:59 am

alpineboard wrote: I am guessing that those blk pcs will be reduced when it gets colder and the demand increases, so the unit will have a longer duration burn time.


They will increase if anything. The burn time decreases, they get pushed out of the pot. I'd imagine chemistry plays roll here with the forced air. I know if you have coal that is producing ashes that looks like yours when burned in hand fed stove will be nothing but powder.

It is already back to 3 setting, I do not want to deal with that fly ash.


That's one reason but you're also sending more heat up the chimney with higher air setting.
Richard S.
 
Stoker Coal Boiler: Van Wert VA1200
Coal Size/Type: Buckwheat/Anthracite

Re: Van Wert VA600 rebuild

PostBy: alpineboard On: Mon Oct 26, 2015 9:53 am

Every thing is good, but just re read the manual again, and I will post a pic soon of the air gate, its numbers and what exactly is position 3 on the gate. The thumb screw holds the air gate in place. So to clarify any potential errors, There is a thumbscrew setting (notch) on the gate that holds the gate in the closed position, I am calling this closed position ZERO. So the next notch is 1, the following notch is 2, ...etc. The reason I stating this is because when it is in the 3 position, the #3 is slightly covered in the top of the frame work piece.
alpineboard
 
Stoker Coal Boiler: Van Wert 600
Hand Fed Coal Boiler: Tarm 202
Hand Fed Coal Stove: Harman HXL, Crane 88, Crane 404
Other Heating: Solar

Re: Van Wert VA600 rebuild

PostBy: alpineboard On: Tue Oct 27, 2015 11:50 am

alpineboard wrote:Every thing is good, but just re read the manual again, and I will post a pic soon of the air gate, its numbers and what exactly is position 3 on the gate. The thumb screw holds the air gate in place. So to clarify any potential errors, There is a thumbscrew setting (notch) on the gate that holds the gate in the closed position, I am calling this closed position ZERO. So the next notch is 1, the following notch is 2, ...etc. The reason I stating this is because when it is in the 3 position, the #3 is pretty much covered in the top of the frame work piece.

The other possibility is that the visible # is shown and the thumbscrew holds on the top of the land and not in the indent notch. Just would like an opinion about this, it is burning great, that is what counts. tx
I suppose the #'s are referencing the pointed bar lines, and the pointed bar lines are what is supposed to be lined up with the top of the frame, so who cares if the number can not be seen.
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alpineboard
 
Stoker Coal Boiler: Van Wert 600
Hand Fed Coal Boiler: Tarm 202
Hand Fed Coal Stove: Harman HXL, Crane 88, Crane 404
Other Heating: Solar

Re: Van Wert VA600 rebuild

PostBy: Pacowy On: Tue Oct 27, 2015 12:00 pm

Rob R. wrote:The air should be adjusted based on the amount of ash on the stoker under full load, not the appearance of the ashes. Again, the manual discusses this in detail.


x2. The width of the ash ring, not the appearance of the ash, is what tells you whether or not you have an optimal fuel-air mix. Deviating from the ash ring spec to achieve a "more complete" burn is basically guaranteed to decrease overall efficiency.

Mike
Pacowy
 
Stoker Coal Boiler: H.B. Smith 350 Mills boiler/EFM 85R stoker
Coal Size/Type: Buckwheat/anthracite

Re: Van Wert VA600 rebuild

PostBy: alpineboard On: Tue Oct 27, 2015 12:07 pm

Got it, So the outer ash ring , the completely burned ring , Not red any more, should be 1" to 2" in width in reference from the outside diameter of the big top ring, not counting anything that is overhanging from that point.
alpineboard
 
Stoker Coal Boiler: Van Wert 600
Hand Fed Coal Boiler: Tarm 202
Hand Fed Coal Stove: Harman HXL, Crane 88, Crane 404
Other Heating: Solar

Re: Van Wert VA600 rebuild

PostBy: Pacowy On: Tue Oct 27, 2015 12:57 pm

Yes. Basically, the coal won't be getting any more forced combustion air once it moves past that point, so that's where the burn should be complete if the max btu's are to be extracted from the coal. If the burn is complete "before" that point (i.e., producing a wider ash ring), some of the combustion air will be blowing through dead ash, cooling the combustion chamber.

Mike
Pacowy
 
Stoker Coal Boiler: H.B. Smith 350 Mills boiler/EFM 85R stoker
Coal Size/Type: Buckwheat/anthracite

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