Direct / Indirect Exhaust Diverter
- Lightning
- Site Moderator
- Posts: 14659
- Joined: Wed. Nov. 16, 2011 9:51 am
- Location: Olean, NY
- Stoker Coal Boiler: Modified AA 130
- Coal Size/Type: Pea Size - Anthracite
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.
- Lightning
- Site Moderator
- Posts: 14659
- Joined: Wed. Nov. 16, 2011 9:51 am
- Location: Olean, NY
- Stoker Coal Boiler: Modified AA 130
- Coal Size/Type: Pea Size - Anthracite
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
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
- lsayre
- Member
- Posts: 21781
- Joined: Wed. Nov. 23, 2005 9:17 pm
- Location: Ohio
- Stoker Coal Boiler: AHS S130 Coal Gun
- Coal Size/Type: Lehigh Anthracite Pea
- Other Heating: Resistance Boiler (13.5 KW), ComfortMax 75
Glad it works. My original assessment of how the internal currents would move across the coal bed was flat out incorrect.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
- Lightning
- Site Moderator
- Posts: 14659
- Joined: Wed. Nov. 16, 2011 9:51 am
- Location: Olean, NY
- Stoker Coal Boiler: Modified AA 130
- Coal Size/Type: Pea Size - Anthracite
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..lsayre wrote:Glad it works. My original assessment of how the internal currents would move across the coal bed was flat out incorrect.
-
- Member
- Posts: 4837
- Joined: Wed. Apr. 03, 2013 1:24 pm
- Location: Elkhart county, IN.
- Hand Fed Coal Stove: 1 comforter stove works all iron coal box stove, seventies.
- Baseburners & Antiques: 2014 DTS C17 Base Burner, GW #6, GW 113 formerly Sir Williams, maybe others at Pauliewog’s I’ve forgotten about
- Coal Size/Type: Nut Anth.
- Other Heating: none
i had the advantage of many yrs. watching this in the Riteway #37. the same happens in my current stove which really surprised me.Lightning wrote: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..lsayre wrote:Glad it works. My original assessment of how the internal currents would move across the coal bed was flat out incorrect.
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.
- McGiever
- Member
- Posts: 10130
- Joined: Sun. May. 02, 2010 11:26 pm
- Location: Junction of PA-OH-WV
- Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
- Hand Fed Coal Boiler: BUCKET A DAY water heater
- Hand Fed Coal Stove: Warm Morning 414A
- Coal Size/Type: PEA,NUT,STOVE /ANTHRACITE
- Other Heating: Ground Source Heat Pump and some Solar
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.
My Modified Riteway #37 with the added in stoker, heat jacket and furnace blower runs just as I described above.
- Lightning
- Site Moderator
- Posts: 14659
- Joined: Wed. Nov. 16, 2011 9:51 am
- Location: Olean, NY
- Stoker Coal Boiler: Modified AA 130
- Coal Size/Type: Pea Size - Anthracite
Wow! That's quite a build! Do you still use it?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.
- McGiever
- Member
- Posts: 10130
- Joined: Sun. May. 02, 2010 11:26 pm
- Location: Junction of PA-OH-WV
- Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
- Hand Fed Coal Boiler: BUCKET A DAY water heater
- Hand Fed Coal Stove: Warm Morning 414A
- Coal Size/Type: PEA,NUT,STOVE /ANTHRACITE
- Other Heating: Ground Source Heat Pump and some Solar
No, I went boiler, when I stumbled across the Axeman_Anderson.
I still have it though. There is a thread detailing the mods.
I still have it though. There is a thread detailing the mods.
-
- Member
- Posts: 4837
- Joined: Wed. Apr. 03, 2013 1:24 pm
- Location: Elkhart county, IN.
- Hand Fed Coal Stove: 1 comforter stove works all iron coal box stove, seventies.
- Baseburners & Antiques: 2014 DTS C17 Base Burner, GW #6, GW 113 formerly Sir Williams, maybe others at Pauliewog’s I’ve forgotten about
- Coal Size/Type: Nut Anth.
- Other Heating: none
i would love to see it, i'm saying that's one of the most impressive combos I've heard of.Lightning wrote:Wow! That's quite a build! Do you still use it?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.
-
- Member
- Posts: 4837
- Joined: Wed. Apr. 03, 2013 1:24 pm
- Location: Elkhart county, IN.
- Hand Fed Coal Stove: 1 comforter stove works all iron coal box stove, seventies.
- Baseburners & Antiques: 2014 DTS C17 Base Burner, GW #6, GW 113 formerly Sir Williams, maybe others at Pauliewog’s I’ve forgotten about
- Coal Size/Type: Nut Anth.
- Other Heating: none
link please !!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.
found it, thanks.
- Lightning
- Site Moderator
- Posts: 14659
- Joined: Wed. Nov. 16, 2011 9:51 am
- Location: Olean, NY
- Stoker Coal Boiler: Modified AA 130
- Coal Size/Type: Pea Size - Anthracite
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.
Attachments
- Sunny Boy
- Member
- Posts: 25560
- Joined: Mon. Nov. 11, 2013 1:40 pm
- Location: Central NY
- Hand Fed Coal Boiler: Anthracite Industrial, domestic hot water heater
- Baseburners & Antiques: Glenwood range 208, # 6 base heater, 2 Modern Oak 118.
- Coal Size/Type: Nuts !
- Other Heating: Oil &electric plenum furnace
I knew I could "pressure" you into seeing the difference.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
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
- Sunny Boy
- Member
- Posts: 25560
- Joined: Mon. Nov. 11, 2013 1:40 pm
- Location: Central NY
- Hand Fed Coal Boiler: Anthracite Industrial, domestic hot water heater
- Baseburners & Antiques: Glenwood range 208, # 6 base heater, 2 Modern Oak 118.
- Coal Size/Type: Nuts !
- Other Heating: Oil &electric plenum furnace
See, proper use of baffle's in stoves are not so, ..... baffling after all.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.
Paul
- Lightning
- Site Moderator
- Posts: 14659
- Joined: Wed. Nov. 16, 2011 9:51 am
- Location: Olean, NY
- Stoker Coal Boiler: Modified AA 130
- Coal Size/Type: Pea Size - Anthracite
Thank you!Sunny Boy wrote:I knew I could "pressure" you into seeing the difference.
Very good job on the build and install !!!!
I need to mount my mano probe on the firebox next. It's all about the pressureSunny 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 ?
Seems I'm gaining a few percent or more so far..Sunny Boy wrote:Now, with more time, it'll be interesting to see how the heat output and coal consumption numbers compare.