How to re-seal a stove?

 
fig
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Post by fig » Sun. Oct. 07, 2018 10:32 am

Hello men,

I'm looking for a tutorial for sealing up a stove. Once it's apart do you just re-assemble and smear the sealant in the seams or is there a way it's done during assembly? I'm sure these are pretty elementary questions for those in the know, but it's unclear to me. I don't want to have to do it twice. I did a search and I got plenty of hits about types of sealants but not really anything instructional. Is there a sticky somewhere I am over looking?


 
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Post by CapeCoaler » Sun. Oct. 07, 2018 8:28 pm

Depends on the stove...
If its the round oak...
one of the experts will point you in the right direction...

 
fig
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Post by fig » Sun. Oct. 07, 2018 8:31 pm

Sorry no. It's a Florence hotblast no. 77.

 
fig
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Hand Fed Coal Boiler: Harman SF360
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Post by fig » Sat. Oct. 13, 2018 10:20 am

Anyone? I'm gettin Cold lol.

 
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Sunny Boy
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Post by Sunny Boy » Sat. Oct. 13, 2018 10:55 am

The best way is to disassemble and clean all the seams to bare metal. Then use a stove sealer cement such as Hercules brand from Lowes, or Home Depot. It's stickier, which helps when putting it on. And it stays a bit softer and more flexible at high temps in seams more so than the harder and more brittle refractory cements, such as Rutland's. Excess cleans up easily with warm water before it's baked dry.

With the sealer actually sandwiched in the joints, and not just smeared over the surface, the sealer will have a better chance of staying in place.

If you don't want to disassemble, at wire brush the seam surfaces to bright bare metal and use the Hercules. It's sticks longer than any other type I've tried.

Oh, by the way, we like pictures of stoves,...hint, hint ! :D

Paul

 
fig
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Post by fig » Sat. Oct. 13, 2018 5:43 pm

OK thanks. I'll have to go to town tomorrow and see if Lowe's has Hercules. I know Menard's doesn't. I'll try to post pics. I usually don't have any luck with that.

I also need mica. Is there a source for that? Any idea what thickness to use? The stuff that's in it is wafer thin.

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Sunny Boy
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Post by Sunny Boy » Sat. Oct. 13, 2018 11:01 pm

Wafer thin is normal thickness. Some folks put a double layer in to help protect against pieces of coal hitting it when they heat up and shoot off little bits of coal.

If you do a search for mica, you should find links to the sources that many use. Some are more expensive than others.

Since it's designed to burn Bit coal, which is much cheaper than anthracite, are you going to use that ?

Paul


 
fig
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Hand Fed Coal Furnace: Clayton 7.1/DS Machine basement stove/ Harman SF1500
Baseburners & Antiques: Renown Parlor stove 87B
Coal Size/Type: Bituminous/anthracite
Other Heating: Harman Accentra, enviro omega, Vermont Ironworks Elm stove, Quadrafire Mt Vernon, Logwood stove, Sotz barrel stove,

Post by fig » Sun. Oct. 14, 2018 5:45 am

Hi Paul
There is a bit mine nearby so I'm hoping to try it and see how it burns. I have heard its not very good but I like to try things for myself.

One concern I have is that gap between the fire ring and the wall of the stove is close to an inch in some places. I wonder how well the Hercules will seal up a gap that wide?
Last edited by fig on Sun. Oct. 14, 2018 10:18 am, edited 1 time in total.

 
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Sunny Boy
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Post by Sunny Boy » Sun. Oct. 14, 2018 9:23 am

A one inch gap is too much to ask of any stove sealer to fill and stay filled. Can you post pictures of the gap your asking about ?

Hot blast stoves are said to work very well with bit coal by those forum members that use them. But, to not soot up the stove pipe and chimney, they have to deliver the secondary air to the correct part of the firebed in the correct qualities, to burn off that soot before it can get out of the stove.

If your stove has a gap in that secondary delivery system, maybe you should fix it rather than try to "band-aid" it with sealer.

Paul

 
fig
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Hand Fed Coal Furnace: Clayton 7.1/DS Machine basement stove/ Harman SF1500
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Coal Size/Type: Bituminous/anthracite
Other Heating: Harman Accentra, enviro omega, Vermont Ironworks Elm stove, Quadrafire Mt Vernon, Logwood stove, Sotz barrel stove,

Post by fig » Sun. Oct. 14, 2018 2:16 pm

Yeh I'll have to see what's going on with that ring when I get it apart. I'm struggling with these rusty bolts. In some places it's impossible to get a cut off wheel on the nut. I soaked them with penetrating oil over night and I'm using an impact driver somewhat gingerly as to not break a casting.

 
fig
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Hand Fed Coal Furnace: Clayton 7.1/DS Machine basement stove/ Harman SF1500
Baseburners & Antiques: Renown Parlor stove 87B
Coal Size/Type: Bituminous/anthracite
Other Heating: Harman Accentra, enviro omega, Vermont Ironworks Elm stove, Quadrafire Mt Vernon, Logwood stove, Sotz barrel stove,

Post by fig » Thu. Nov. 01, 2018 8:10 am

I couldn't find any Hercules stove cement here so I ordered some off of Amazon. I'm not sure they sent the right stuff. The stuff they sent says high heat furnace cement. Is this the same thing?

 
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Post by Sunny Boy » Thu. Nov. 01, 2018 8:37 am

Yup, that's it !

Paul

 
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Post by archangel_cpj » Thu. Nov. 01, 2018 1:36 pm

You can get micca very cheap on Ebay. It may be called Isinglass...

 
fig
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Hand Fed Coal Furnace: Clayton 7.1/DS Machine basement stove/ Harman SF1500
Baseburners & Antiques: Renown Parlor stove 87B
Coal Size/Type: Bituminous/anthracite
Other Heating: Harman Accentra, enviro omega, Vermont Ironworks Elm stove, Quadrafire Mt Vernon, Logwood stove, Sotz barrel stove,

Post by fig » Sat. Nov. 03, 2018 10:55 am

I got some from Amazon. 2 4x6 pcs for $24.

Will 6" pipe squeeze over the oval? I don't see any provisions for a mechanical fastener?

Should I use mpd or Baro? Planning on burning bit.


Also if anyone knows what size that acme screw in the bottom back side that controls the air is I need to get one.

 
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Post by Sunny Boy » Sat. Nov. 03, 2018 12:42 pm

fig wrote:
Sat. Nov. 03, 2018 10:55 am
I got some from Amazon. 2 4x6 pcs for $24.

Will 6" pipe squeeze over the oval? I don't see any provisions for a mechanical fastener?

Should I use mpd or Baro? Planning on burning bit.


Also if anyone knows what size that acme screw in the bottom back side that controls the air is I need to get one.

Many oaks use 6 inch pipe. However, it's easy enough to check before you buy any. Wrap a piece of string around the oval, then measure the length and compare it to the circumferance of 6 inch pipe (3.1415 x 6inch = 18.84 inches).


Baro verses MPD has been covered to death on here. Often it's a personal preference. Rather than rehash the subject, you can do a search, read up, and then decide which best fits your situation.

Paul


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