Temps Inside the Fire Box...?

Horizontal smokers with a side firebox and tuning plates.
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fmboss429
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Temps Inside the Fire Box...?

Post by fmboss429 » July 17th, 2012, 3:09 pm

I have been wondering, what kind of temperatures can you expect to see inside the fire box, understanding that the temperatures will rise and fall with the size of the fire as you add wood and it burns down. I am trying to insulate the outside of my firebox and was wondering what grade of ceramic wool to buy. Thanks a million for all of the great tips and help i have extracted from this site! You guys are awesome...



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Gizmo
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Re: Temps Inside the Fire Box...?

Post by Gizmo » July 17th, 2012, 5:25 pm

Most of the fireplace insert store guys will tell you they plan on about 1500 degrees - however - that's on the high end. I use silicone rated at 1200 with no failures due to heat - just stupidity. The core will easily run 2200 but nothing but charcoal/wood is there. The roof/diffuser of the firebox ought to run in the 800 degree area on a reverse flow.

These are crude numbers so check your ratings as you shop. If you are using the type of ceramic insulation from those same fireplace store guys, that they use to wrap directly around stove pipe then I've never heard of a rating below about 2900 anyway... :)


And on the eighth day God created barbecue …. because he DOES love us and he wants us to be happy. :D
Current smokers: Egor (trailered RF) and Easybake (tabletop pellet drive)

fmboss429
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Re: Temps Inside the Fire Box...?

Post by fmboss429 » July 18th, 2012, 10:27 am

Thanks a million! Makes a lot of sense... leaves me with a question though, what does failure due to stupidity mean? What happened? PS I like the Somkers you have built.



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Gizmo
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Re: Temps Inside the Fire Box...?

Post by Gizmo » July 18th, 2012, 4:41 pm

Thanks fmboss429.

On my experimental box cooker I let the core get away from me (bad weld) to make contact with the seal bead ...

THERE I SAID IT! - I was just learning how to weld and I made a mistake - that was back in 2009 - happy to report I haven't gone there since.... :D


And on the eighth day God created barbecue …. because he DOES love us and he wants us to be happy. :D
Current smokers: Egor (trailered RF) and Easybake (tabletop pellet drive)

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Smokeone
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Re: Temps Inside the Fire Box...?

Post by Smokeone » July 18th, 2012, 7:06 pm

Now dont you feel better? Finally able to get that off your chest. :D


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Usually more beers than smoke.

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Gizmo
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Re: Temps Inside the Fire Box...?

Post by Gizmo » July 19th, 2012, 7:08 am

Hello ... My name is Rick and I'm a "Q"aholic... :-h


And on the eighth day God created barbecue …. because he DOES love us and he wants us to be happy. :D
Current smokers: Egor (trailered RF) and Easybake (tabletop pellet drive)

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