Why cement your black stove pipe

Why cement your black stove pipe

PostBy: Stngllhm On: Thu Feb 07, 2013 10:03 am

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.
Stngllhm
 
Stove/Furnace Make: US Stove
Stove/Furnace Model: Hot Blast 1557m

Re: Why cement your black stove pipe

PostBy: oros35 On: Thu Feb 07, 2013 10:19 am

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.
oros35
 
Baseburners & Antiques: 1912 Smith & Anthony Hub Heater #215
Stove/Furnace Make: Smith & Anthony Co.
Stove/Furnace Model: #215 Hub Heater

Re: Why cement your black stove pipe

PostBy: carlherrnstein On: Thu Feb 07, 2013 10:34 am

I only cemented around the pipe at the stove cause there was a large 3/16" gap around the pipe.
carlherrnstein
 
Hot Air Coal Stoker Stove: combustioneer model 77B
Coal Size/Type: pea stoker/Ohio bituminous

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Re: Why cement your black stove pipe

PostBy: I'm On Fire On: Thu Feb 07, 2013 11:14 am

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.
I'm On Fire
 
Hand Fed Coal Stove: DS Machines DS-1600 Hot Air Circulator

Re: Why cement your black stove pipe

PostBy: michaelanthony On: Thu Feb 07, 2013 11:19 am

I bought a tube of fire stop for the pipe where it enters the chimney and flue. good stuff and easy clean up.
michaelanthony
 
Hand Fed Coal Stove: Vigilant 2310, gold marc box, vogelzang pot belly coat rack
Coal Size/Type: Pea, and a little nut
Other Heating: Very cold FHA oil furnace

Re: Why cement your black stove pipe

PostBy: titleist1 On: Thu Feb 07, 2013 11:19 am

i did it for looks.....just like they say on all those food network shows.....its all about "presentation" !!! :D



seriously, I did it just to make sure i was controlling any air leaks that may cheat my control of the draft.
titleist1
 
Hot Air Coal Stoker Stove: Harman Mag Stoker (old style) one in basement, one in workshop
Hand Fed Coal Stove: Harman Mark III on standby for long power outages
Coal Size/Type: Rice/Anthracite; Nut/Anthracite

Re: Why cement your black stove pipe

PostBy: Lightning On: Thu Feb 07, 2013 3:11 pm

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.
Lightning
 
Hand Fed Coal Furnace: Clayton 1537G
Coal Size/Type: Nut Size / White Ash

Re: Why cement your black stove pipe

PostBy: joeq On: Thu Feb 07, 2013 9:33 pm

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. :)
joeq
 
Hand Fed Coal Stove: Surdiac Gotha 513
Stove/Furnace Make: Oil fired
Stove/Furnace Model: Thermopride

Re: Why cement your black stove pipe

PostBy: lsayre On: Thu Feb 07, 2013 9:42 pm

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.


What's a good high temperature silicone adhesive that you can recommend? What temperatures is it intended to tolerate?
lsayre
 
Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Anthracite Pea
Other Heating: Resistance Boiler (if I ever get it fixed)

Re: Why cement your black stove pipe

PostBy: coalkirk On: Thu Feb 07, 2013 10:19 pm

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.


Me too.
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The tape holds up well all season.
coalkirk
 
Stoker Coal Boiler: Harman VF3000
Coal Size/Type: antrhcite/rice coal

Re: Why cement your black stove pipe

PostBy: oros35 On: Fri Feb 08, 2013 9:49 am

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!
oros35
 
Baseburners & Antiques: 1912 Smith & Anthony Hub Heater #215
Stove/Furnace Make: Smith & Anthony Co.
Stove/Furnace Model: #215 Hub Heater

Re: Why cement your black stove pipe

PostBy: Stngllhm On: Fri Feb 08, 2013 12:49 pm

Thanks everyone I believe I'm gonna get some tape today and follow suit.
Stngllhm
 
Stove/Furnace Make: US Stove
Stove/Furnace Model: Hot Blast 1557m

Re: Why cement your black stove pipe

PostBy: SMITTY On: Fri Feb 08, 2013 1:42 pm

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. :roll:

Image
SMITTY
 
Stoker Coal Boiler: Patriot Coal - custom built by Jim Dorsey
Hand Fed Coal Stove: Harman Mark III (not currently in use)
Coal Size/Type: Rice / Blaschak anthracite
Other Heating: Oil fired Burnham boiler

Re: Why cement your black stove pipe

PostBy: joeq On: Fri Feb 08, 2013 2:31 pm

Wow Smitty, I didn't know you could buy 8" flex pipe for stoves. Looks like a handy component when necessary.
joeq
 
Hand Fed Coal Stove: Surdiac Gotha 513
Stove/Furnace Make: Oil fired
Stove/Furnace Model: Thermopride

Re: Why cement your black stove pipe

PostBy: dlj On: Fri Feb 08, 2013 4:06 pm

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
dlj
 
Hand Fed Coal Stove: Vermont Castings Resolute
Baseburners & Antiques: Glenwood Baseheater #6
Coal Size/Type: Stove coal
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