Flue Clearance Question

 
User avatar
tcalo
Member
Posts: 2068
Joined: Tue. Dec. 13, 2011 4:57 pm
Location: Long Island, New York
Baseburners & Antiques: Crawford 40
Coal Size/Type: Nut/stove anthracite

Post by tcalo » Fri. Sep. 30, 2016 12:27 am

I renovated the room my stove is in over the summer and decided to move it further away from the wall to eliminate the need for a heat shield. I now have 36" clearance from the stove to the wall. The flue was a straight run out the top of the stove and through the roof. I needed to add 2 elbows to get the 36" clearance for the stove. I realize single wall stove pipe clearance is 18" to combustibles. Stove pipe running through a support box would be within inches of combustibles at the point just before the pipe enters the support box. How exactly do you decipher this info? I know on base burners the flue stays fairly cool. When I restored the stove I never cut the rear flange into the rear pipe, instead I installed a 6" oval to round adaptor and just ran the flue straight out the top of the rear pipe. I'm not sure what to do here. If clearances are an issue I guess one fix would be to install the rear flange on the rear pipe and 90 off the flange into the flue. Then the flue would run straight up and into the support box. It was a pita cutting the flanges into the rear pipe, I'd like to avoid that if possible. Thoughts?

Attachments

image.jpeg
.JPEG | 77.7KB | image.jpeg
image.jpeg
.JPEG | 203.5KB | image.jpeg
Last edited by tcalo on Fri. Sep. 30, 2016 8:23 am, edited 1 time in total.


 
User avatar
Rob R.
Site Moderator
Posts: 17977
Joined: Fri. Dec. 28, 2007 4:26 pm
Location: Chazy, NY
Stoker Coal Boiler: EFM 520
Hand Fed Coal Stove: Chubby Jr

Post by Rob R. » Fri. Sep. 30, 2016 5:30 am

Run some pipe between the support box and the first elbow. That would keep the pipe away from the ceiling.

 
User avatar
hotblast1357
Member
Posts: 5657
Joined: Mon. Mar. 10, 2014 10:06 pm
Location: Peasleeville NY
Stoker Coal Boiler: 1984 Eshland S260 coal gun
Coal Size/Type: Lehigh anthracite pea
Other Heating: air source heat pump, oil furnace

Post by hotblast1357 » Fri. Sep. 30, 2016 6:22 am

+1

 
waldo lemieux
Member
Posts: 2270
Joined: Sun. Sep. 30, 2012 8:20 pm
Location: Ithaca,NY

Post by waldo lemieux » Fri. Sep. 30, 2016 6:59 am

Make two 45 deg bends instead of the two 90's , it will draw better also. If your not burning wood, I wouldnt worry about it.....:)

 
User avatar
coaledsweat
Site Moderator
Posts: 13763
Joined: Fri. Oct. 27, 2006 2:05 pm
Location: Guilford, Connecticut
Stoker Coal Boiler: Axeman Anderson 260M
Coal Size/Type: Pea

Post by coaledsweat » Fri. Sep. 30, 2016 7:22 am

Easiest thing to do is put the elbows just above the baro and run straight up from there. Save fancy for next time.

 
User avatar
tcalo
Member
Posts: 2068
Joined: Tue. Dec. 13, 2011 4:57 pm
Location: Long Island, New York
Baseburners & Antiques: Crawford 40
Coal Size/Type: Nut/stove anthracite

Post by tcalo » Fri. Sep. 30, 2016 8:22 am

Thanks for the advice. I'll move the elbows down to the baro and then run the 12" section of pipe to the support box.

 
User avatar
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

Post by McGiever » Fri. Sep. 30, 2016 8:43 am

2- 90's=180*
2-45=90*

Easy and pretty comes secondary to function.

Why a baro with the MPD on this suspended fire pot BB ?


 
User avatar
tcalo
Member
Posts: 2068
Joined: Tue. Dec. 13, 2011 4:57 pm
Location: Long Island, New York
Baseburners & Antiques: Crawford 40
Coal Size/Type: Nut/stove anthracite

Post by tcalo » Fri. Sep. 30, 2016 9:04 am

Two 45's won't bring the stove out far enough to give me the required 36" clearance. As far as the baro and MPD go, the stove was drafting too hard last season to maintain a decent draft with the MPD closed 100% and the internal check damper open 100%. I needed to add the baro to get the draft down. I guess my set up is the exception to the "no baro with antique bb's" myth.

 
User avatar
coaledsweat
Site Moderator
Posts: 13763
Joined: Fri. Oct. 27, 2006 2:05 pm
Location: Guilford, Connecticut
Stoker Coal Boiler: Axeman Anderson 260M
Coal Size/Type: Pea

Post by coaledsweat » Fri. Sep. 30, 2016 9:42 am

2 45° will with a piece of straight between them and will be a little less drag on the draft. That said, you have what you need, go with it. :)

 
User avatar
SWPaDon
Member
Posts: 9857
Joined: Sun. Nov. 24, 2013 12:05 pm
Location: Southwest Pa.
Hand Fed Coal Furnace: Clayton 1600M
Coal Size/Type: Bituminous
Other Heating: Oil furnace

Post by SWPaDon » Fri. Sep. 30, 2016 9:59 am

I agree with the 'let it alone'. You aren't going to run it hot enough to cause any problems burning coal and you don't need the extra draft.

 
User avatar
tcalo
Member
Posts: 2068
Joined: Tue. Dec. 13, 2011 4:57 pm
Location: Long Island, New York
Baseburners & Antiques: Crawford 40
Coal Size/Type: Nut/stove anthracite

Post by tcalo » Fri. Sep. 30, 2016 1:07 pm

So...because of all the wonder stove pipe products on the market none of the pipe fit together when I decided to move the elbows around... :mad: ! The only spots the elbows would fit was on the support box or the Chubby adapter on the rear pipe. So I simply put both elbows on the lower section of the flue on a 45 angle and ran the pipe straight up to the support box. The top 12" section of pipe is a slip connection so it makes installing and removing quite easy. This should do the trick! Thanks again for all the ideas.

Attachments

image.jpeg
.JPEG | 108.3KB | image.jpeg

 
User avatar
windyhill4.2
Member
Posts: 6072
Joined: Fri. Nov. 22, 2013 2:17 pm
Location: Jonestown,Pa.17038
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

Post by windyhill4.2 » Fri. Sep. 30, 2016 1:21 pm

Wow,you got the problem fixed & got pretty with it. That setting looks really good !!

 
User avatar
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

Post by McGiever » Fri. Sep. 30, 2016 1:54 pm

:clap:

 
waldo lemieux
Member
Posts: 2270
Joined: Sun. Sep. 30, 2012 8:20 pm
Location: Ithaca,NY

Post by waldo lemieux » Fri. Sep. 30, 2016 3:02 pm

I didnt think you were supposed to use a baro with a hand fed??

 
User avatar
windyhill4.2
Member
Posts: 6072
Joined: Fri. Nov. 22, 2013 2:17 pm
Location: Jonestown,Pa.17038
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

Post by windyhill4.2 » Fri. Sep. 30, 2016 3:36 pm

waldo lemieux wrote:I didnt think you were supposed to use a baro with a hand fed??
You are likely thinking of the power vents,those cannot be used with a hand-fed unit.


Post Reply

Return to “Coal Bins, Chimneys, CO Detectors & Thermostats”