Direct / Indirect Exhaust Diverter

 
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Lightning
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Post by Lightning » Wed. Nov. 26, 2014 1:43 pm

Yer right. I've noticed that already. For now I'm opening the load door and reaching it with a poker rod to open and close it.


 
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Post by Lightning » Wed. Nov. 26, 2014 3:02 pm

Currently a 90 degree spread between over the load door and flue breech. Best I've seen this year was an 80 degree spread which was at a higher burn rate.

 
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Post by Lightning » Wed. Nov. 26, 2014 5:00 pm

I just had another confirming moment with the diverter. As I loaded fresh coal a few moments ago, there was a small piece of wood that began to smolder.

Good time for a smoke test. I closed the door on the diverter and watched the smoke move horizontally towards the lower outlets. Ut oh.. that's not the effect I was looking for. Then I closed the load door and anxiously watched thru the window with a flashligh. The smoke lazily moved vertically towards the roof of the fire box traveled across the top towards the back and then descended to the lower outlets.

Thanks Paul. I now fully get that there is no pulling going on in a chimney system. We can call it pulling for simplistic reasons. In actuality it's the pressure outside that's pushing into the stove. I knew this but didn't really understand how it could be so. A new light of dawn has shown.. hahaha

 
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Post by lsayre » Wed. Nov. 26, 2014 5:12 pm

Lightning wrote:I just had another confirming moment with the diverter. As I loaded fresh coal a few moments ago, there was a small piece of wood that began to smolder.

Good time for a smoke test. I closed the door on the diverter and watched the smoke move horizontally towards the lower outlets. Ut oh.. that's not the effect I was looking for. Then I closed the load door and anxiously watched thru the window with a flashligh. The smoke lazily moved vertically towards the roof of the fire box traveled across the top towards the back and then descended to the lower outlets.

Thanks Paul. I now fully get that there is no pulling going on in a chimney system. We can call it pulling for simplistic reasons. In actuality it's the pressure outside that's pushing into the stove. I knew this but didn't really understand how it could be so. A new light of dawn has shown.. hahaha
Glad it works. My original assessment of how the internal currents would move across the coal bed was flat out incorrect.

 
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Lightning
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Post by Lightning » Wed. Nov. 26, 2014 5:45 pm

lsayre wrote:Glad it works. My original assessment of how the internal currents would move across the coal bed was flat out incorrect.
I understand how you would have come to that conclusion. I wasn't totally confident it would happen that way, till I saw the smoke stream.. :)

 
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Post by KingCoal » Wed. Nov. 26, 2014 7:13 pm

Lightning wrote:
lsayre wrote:Glad it works. My original assessment of how the internal currents would move across the coal bed was flat out incorrect.
I understand how you would have come to that conclusion. I wasn't totally confident it would happen that way, till I saw the smoke stream.. :)
i had the advantage of many yrs. watching this in the Riteway #37. the same happens in my current stove which really surprised me.

you would tend to expect that you would see evidence of the flow going directly over the rim of the fire pot and into the transitions but that is no the case at all.

the blue ladies dance long and tall right straight past there and on toward the top of the stove. they don't even bend toward the sides. the thermal path in there is just like a mushroom cloud in all 4 directions. up to the top out / over to the nearest side then down the wall. that's pretty astonishing considering I have the hopper in and there isn't a tremendous amount of open space in there.

 
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Post by McGiever » Wed. Nov. 26, 2014 9:53 pm

Now imagine that hot gas flow pattern being observed above, and a flat grate stoker going from a long idle, then build up to a full fire then continuing to run only long enough to satisfy the t-stat and then go back down to an idle again to wait to do it all again at the next call for heat from the t-stat.

My Modified Riteway #37 with the added in stoker, heat jacket and furnace blower runs just as I described above.:)


 
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Lightning
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Post by Lightning » Wed. Nov. 26, 2014 11:08 pm

McGiever wrote:Now imagine that hot gas flow pattern being observed above, and a flat grate stoker going from a long idle, then build up to a full fire then continuing to run only long enough to satisfy the t-stat and then go back down to an idle again to wait to do it all again at the next call for heat from the t-stat.

My Modified Riteway #37 with the added in stoker, heat jacket and furnace blower runs just as I described above.:)
Wow! That's quite a build! Do you still use it?

 
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Post by McGiever » Wed. Nov. 26, 2014 11:32 pm

No, I went boiler, when I stumbled across the Axeman_Anderson.
I still have it though. :) There is a thread detailing the mods.

 
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Post by KingCoal » Thu. Nov. 27, 2014 8:39 am

Lightning wrote:
McGiever wrote:Now imagine that hot gas flow pattern being observed above, and a flat grate stoker going from a long idle, then build up to a full fire then continuing to run only long enough to satisfy the t-stat and then go back down to an idle again to wait to do it all again at the next call for heat from the t-stat.

My Modified Riteway #37 with the added in stoker, heat jacket and furnace blower runs just as I described above.:)
Wow! That's quite a build! Do you still use it?
i would love to see it, i'm saying that's one of the most impressive combos I've heard of.

 
KingCoal
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Coal Size/Type: Nut Anth.
Other Heating: none

Post by KingCoal » Thu. Nov. 27, 2014 8:40 am

McGiever wrote:No, I went boiler, when I stumbled across the Axeman_Anderson.
I still have it though. :) There is a thread detailing the mods.
link please !!

found it, thanks.

 
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Post by Lightning » Thu. Nov. 27, 2014 8:52 am

Got 122 degree separation between over the load door and flue breech this morning! Best I've seen this year! Averaging a 20-30% bigger spread between stove and pipe temps with the new diverter! Wow.
:flex: :yes:

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Post by Sunny Boy » Thu. Nov. 27, 2014 9:11 am

Lightning wrote:I just had another confirming moment with the diverter. As I loaded fresh coal a few moments ago, there was a small piece of wood that began to smolder.

Good time for a smoke test. I closed the door on the diverter and watched the smoke move horizontally towards the lower outlets. Ut oh.. that's not the effect I was looking for. Then I closed the load door and anxiously watched thru the window with a flashligh. The smoke lazily moved vertically towards the roof of the fire box traveled across the top towards the back and then descended to the lower outlets.

Thanks Paul. I now fully get that there is no pulling going on in a chimney system. We can call it pulling for simplistic reasons. In actuality it's the pressure outside that's pushing into the stove. I knew this but didn't really understand how it could be so. A new light of dawn has shown.. hahaha
I knew I could "pressure" you into seeing the difference. :D
Very good job on the build and install !!!!

Now, with more time, it'll be interesting to see how the heat output and coal consumption numbers compare.

Also, if the salt and pepper shakers will need hole size changing, or will they self adjust secondary air feed to the D/I damper changes ?

Paul

 
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Post by Sunny Boy » Thu. Nov. 27, 2014 9:13 am

Lightning wrote:Got 122 degree separation between over the load door and flue breech this morning! Best I've seen this year! Averaging a 20-30% bigger spread between stove and pipe temps with the new diverter! Wow.
:flex: :yes:
See, proper use of baffle's in stoves are not so, ..... baffling after all. :D

Paul

 
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Post by Lightning » Thu. Nov. 27, 2014 9:46 am

Sunny Boy wrote:I knew I could "pressure" you into seeing the difference.
Very good job on the build and install !!!!
Thank you! :)
Sunny Boy wrote:Also, if the salt and pepper shakers will need hole size changing, or will they self adjust secondary air feed to the D/I damper changes ?
I need to mount my mano probe on the firebox next. It's all about the pressure :lol:
Sunny Boy wrote:Now, with more time, it'll be interesting to see how the heat output and coal consumption numbers compare.
Seems I'm gaining a few percent or more so far.. 8-)


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