Why Cement Your Black Stove Pipe
So I've seen some of you on here seal up the joints on your black pipe. I was told years ago that you didn't need to do that. Just screw it at least 3 places 4 if you could. I was told this by wood burners. And it's been working well without this year. Just trying to figure out if this is something I should look at doing.
- oros35
- Member
- Posts: 476
- Joined: Mon. Feb. 02, 2009 3:47 pm
- Location: Pittsburgh Pa
- Hand Fed Coal Boiler: Cozeburn OWB burning Bit
- Baseburners & Antiques: 1912 Smith & Anthony Hub Heater #215
For me it was about maximizing draft. I did all but 2 seams so I could easily take them apart to clean. All seams are also screwed together.
Any leak in the stove pipe acts to reduce the draft. To get the best most consistant burn and the ability to run it really low (think so low it will idle for 2 days and then fire right back up) the pipes need to be really tight, maximizing draft by reducing leaks.
Any leak in the stove pipe acts to reduce the draft. To get the best most consistant burn and the ability to run it really low (think so low it will idle for 2 days and then fire right back up) the pipes need to be really tight, maximizing draft by reducing leaks.
- carlherrnstein
- Member
- Posts: 1536
- Joined: Tue. Feb. 07, 2012 8:49 am
- Location: Clarksburg, ohio
- Hot Air Coal Stoker Stove: combustioneer model 77B
- Coal Size/Type: pea stoker/Ohio bituminous
I only cemented around the pipe at the stove cause there was a large 3/16" gap around the pipe.
- I'm On Fire
- Member
- Posts: 3918
- Joined: Thu. Jun. 10, 2010 9:34 am
- Location: Vernon, New Jersey
- Hand Fed Coal Stove: DS Machines DS-1600 Hot Air Circulator
I only cemented where it goes into the stove outlet. There was a small gap and I didn't want any CO leaking out into the house. I then used high temp silcone on some of the other seams for no real reason.
- michaelanthony
- Member
- Posts: 4550
- Joined: Sat. Nov. 22, 2008 10:42 pm
- Location: millinocket,me.
- Hand Fed Coal Stove: Vigilant 2310, gold marc box stove
- Hand Fed Coal Furnace: Gold Marc Independence
- Baseburners & Antiques: Home Sparkle 12
- Coal Size/Type: 'nut
- Other Heating: Fujitsu mini split, FHA oil furnace
I bought a tube of fire stop for the pipe where it enters the chimney and flue. good stuff and easy clean up.
- Lightning
- Site Moderator
- Posts: 14658
- Joined: Wed. Nov. 16, 2011 9:51 am
- Location: Olean, NY
- Stoker Coal Boiler: Modified AA 130
- Coal Size/Type: Pea Size - Anthracite
I screwed the pipes together then used foil tape around the seams. Mainly for the same reasons listed above. Anal retention of draft lol and the tape comes off easy to get into the pipes when needed.
- joeq
- Member
- Posts: 5739
- Joined: Sat. Feb. 11, 2012 11:53 am
- Location: Northern CT
- Hand Fed Coal Stove: G111, Southard Robertson
My stove only has 1 foot of pipe before the wall thimble, and I didn't even use screws, never mind glue or tape. but then again, the stove weighs almost 400LBs, and the pipe isn't going anywhere. And the 15' of vertical SS double wall outside? Haven't put any screws in them either. (Twist-lock) Did buy some clamps for them last year. Maybe I'll do it this year. Between the weight and the brackets, They're pretty secure. They've survived a few storms too. I'll let you know if they ever fall to the ground.
- 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
What's a good high temperature silicone adhesive that you can recommend? What temperatures is it intended to tolerate?I'm On Fire wrote:I only cemented where it goes into the stove outlet. There was a small gap and I didn't want any CO leaking out into the house. I then used high temp silcone on some of the other seams for no real reason.
- coalkirk
- Member
- Posts: 5185
- Joined: Wed. May. 17, 2006 8:12 pm
- Location: Forest Hill MD
- Stoker Coal Boiler: 1981 EFM DF520 retired
- Hand Fed Coal Stove: Jotul 507 on standby
- Coal Size/Type: Lehigh anthracite/rice coal
Me too. The tape holds up well all season.Lightning wrote:I screwed the pipes together then used foil tape around the seams. Mainly for the same reasons listed above. Anal retention of draft lol and the tape comes off easy to get into the pipes when needed.
- oros35
- Member
- Posts: 476
- Joined: Mon. Feb. 02, 2009 3:47 pm
- Location: Pittsburgh Pa
- Hand Fed Coal Boiler: Cozeburn OWB burning Bit
- Baseburners & Antiques: 1912 Smith & Anthony Hub Heater #215
I first used foil tape, saw how much better the draft was!
Then next clean out, I cemented them together, for astetic purposes! The stove is a looker, and the tape was dragging it down!
Then next clean out, I cemented them together, for astetic purposes! The stove is a looker, and the tape was dragging it down!
- SMITTY
- Member
- Posts: 12520
- Joined: Sun. Dec. 11, 2005 12:43 pm
- Location: West-Central Mass
- Stoker Coal Boiler: EFM 520 Highboy
- Coal Size/Type: Rice / Blaschak anthracite
- Other Heating: Oil fired Burnham boiler
No cement and no screws on mine. I want to be able to easily take it apart in spring.
This thing has handled SEVERAL massive explosions without fail, as I figured it would. Safe as can be.
That white crap is from when I used to clean the pipe with baking soda and water. This pic is a few years old. I found it better to just brush the ash out and keep it dry. The baking soda seemed to do as much damage as leaving the flyash in the pipe all summer.
This thing has handled SEVERAL massive explosions without fail, as I figured it would. Safe as can be.
That white crap is from when I used to clean the pipe with baking soda and water. This pic is a few years old. I found it better to just brush the ash out and keep it dry. The baking soda seemed to do as much damage as leaving the flyash in the pipe all summer.
- dlj
- Member
- Posts: 1273
- Joined: Thu. Nov. 27, 2008 6:38 pm
- Location: Monroe, NY
- Hand Fed Coal Stove: Vermont Castings Resolute
- Baseburners & Antiques: Glenwood Baseheater #6
- Coal Size/Type: Stove coal
- Other Heating: Oil Furnace, electric space heaters
I think putting in a sealant on your pipe joints depends upon your individual situation. I have no seal on my stove pipe joints and have no problems at all. I also have very good draft. If I had less draft, I may look into cementing the joints.
dj
dj