AA130

 
lincolnmania
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Post by lincolnmania » Wed. Jan. 17, 2018 9:52 pm

no flyash out of my baro don. i have a power vent on my reading stoker.


 
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swyman
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Post by swyman » Thu. Jan. 18, 2018 6:38 am

StokerDon wrote:
Wed. Jan. 17, 2018 6:59 pm
Thanks!

I sorry to say I don't know much about power vents, but I also don't understand your question about fly ash. Do you have fly ash coming out your baro?
My baro is at the base of the chimney on this one because I had to put it in the 8" part of the stove pipe. It's a 7" baro. The rest of the pipe is 5".

-Don
No fly ash coming out the baro but I do get some coming out the PV. Just thinking if moving baro locations would have an effect (reduce) my flay ash. My theory is this, I have my baro located right off the Tee on the boiler breech. The baro is set at -.04" but usually I set the rheostat on the power vent so it is pulling a little more than that so the baro gate is bouncing a bit.....it can fluctuate a little bit so I would rather have a little extra draft than not enough for safety reasons. So I would think that if I'm pulling in extra air through the baro gate, the velocity has to be greater down stream of the baro? Which if that was the case could accelerate the fly ash through the stove pipe? Am I over thinking this stuff?

 
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Post by Olllotj » Thu. Jan. 18, 2018 7:31 am

Yes you are overthinking it.

The Baro will steady everything downstream either way, and the flyash is just a coal burning by product.

 
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hotblast1357
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Post by hotblast1357 » Thu. Jan. 18, 2018 8:21 am

Always going to have flyash, hook a leaf blower to the stove pipe to blow out fly ash if it’s to much of a pain lol

 
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StokerDon
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Post by StokerDon » Thu. Jan. 18, 2018 6:33 pm

swyman wrote:
Thu. Jan. 18, 2018 6:38 am
No fly ash coming out the baro but I do get some coming out the PV. Just thinking if moving baro locations would have an effect (reduce) my flay ash.
Not a chance. Fly ash is produced by burning coal, the location of the baro has nothing to do with it.
swyman wrote:
Thu. Jan. 18, 2018 6:38 am
So I would think that if I'm pulling in extra air through the baro gate, the velocity has to be greater down stream of the baro? Which if that was the case could accelerate the fly ash through the stove pipe? Am I over thinking this stuff?
Your not over thinking at all, your just thinking about the wrong thing. Like I said earlier, I don't know much about power vents but in my opinion, you should be thinking about putting up a masonry chimney. That way you wouldn't have to deal with the pain and suffering of this power vent thing.

With a masonry chimney, stoker at idle, the draft is very small. At full fire, the draft increases and the baro keeps it from pulling to much heat out of the boiler. It sounds like a power vent pulls heat out of the boiler constantly at idle.

-Don

 
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swyman
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Post by swyman » Fri. Jan. 19, 2018 7:40 am

StokerDon wrote:
Thu. Jan. 18, 2018 6:33 pm
. It sounds like a power vent pulls heat out of the boiler constantly at idle.

-Don
You know I didn't really think of this but I think you are absolutely correct as the draft never changes. When my boiler goes into low fire mode my firebox pressure goes from -.01 to -.04. That is pulling all that heat out of the boiler when idling isn't it?

 
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coaledsweat
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Post by coaledsweat » Fri. Jan. 19, 2018 7:51 am

This is why they invented chimneys.


 
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hotblast1357
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Post by hotblast1357 » Fri. Jan. 19, 2018 7:57 am

Wire it up to slow down at idle, and kick up when the combustion fans come on.

 
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lsayre
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Post by lsayre » Fri. Jan. 19, 2018 8:24 am

hotblast1357 wrote:
Fri. Jan. 19, 2018 7:57 am
Wire it up to slow down at idle, and kick up when the combustion fans come on.
That may not be safe.

 
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hotblast1357
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Post by hotblast1357 » Fri. Jan. 19, 2018 9:33 am

Well it would have to be done safely of coarse!

 
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windyhill4.2
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Post by windyhill4.2 » Fri. Jan. 19, 2018 10:43 am

coaledsweat wrote:
Fri. Jan. 19, 2018 7:51 am
This is why they invented chimneys.
^^^ :yes:

Make it your top priority goal to build a chimney as soon as you financially can do it.

Meanwhile,let the stupid power vent do it's wasteful job.... safely,don't try to re-engineer what it does.

 
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Post by McGiever » Fri. Jan. 19, 2018 10:46 am

Hrmm....deja vu...PV a heat waster...think we expressed all this out in the barn some time ago too...

 
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windyhill4.2
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Post by windyhill4.2 » Fri. Jan. 19, 2018 10:49 am

McGiever wrote:
Fri. Jan. 19, 2018 10:46 am
Hrmm....deja vu...PV a heat waster...think we expressed all this out in the barn some time ago too...
I just woke up (mentally) & realized we are talking about stupid power vents on SD's AA130 thread..... :o :what: oops

 
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lsayre
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Post by lsayre » Fri. Jan. 19, 2018 10:57 am

windyhill4.2 wrote:
Fri. Jan. 19, 2018 10:49 am
I just woke up (mentally) & realized we are talking about stupid power vents on SD's AA130 thread..... :o :what: oops
And since the AA130 functions much like a hand fired stove when at idle, it is not possible to install a power vent on it at all. I shouldn't have propagated this within this thread either.

 
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Post by McGiever » Fri. Jan. 19, 2018 11:05 am

lsayre wrote:
Fri. Jan. 19, 2018 10:57 am
And since the AA130 functions much like a hand fired stove when at idle, it is not possible to install a power vent on it at all. I shouldn't have propagated this within this thread either.

And that plus not running any hold-fire-timer w/ a AA_130 plays largely into not burning extra coal just to stay alive.
Most, if not all, other stokers must idle...AA's 'hibernate' :mrgreen:


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