burn your stack clean

You want a surface temp of around 550-650.

Bigtim774 said:

You want a surface temp of around 550-650.

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Anything over 600 is considered Overfire in a Mansfield. I run mine at about 450-500 for around 1/2 hour, then close it down to keep those temps.

Chris

Your chimney doesn't know that the stove is made of stone. Same as any chimney, the minimum temp should be 400 on up to 1000 max. Your stove top temp really has little to do with this.

What is a flue temp gauge? If you mean a probe thermometer then the above temps are accurate. If your gauge is a surface gauge then you usually halve the above temps and if you have a surface temp gauge on a double wall pipe then you aren't really measuring anything.

I run my flue temps up to 900 each time I light a fire and then close down the air to hold a 700 degree flue temp until things heat up. Usual flue temps are 600-800. Usual stove temps are 400-500

I think the deal is you want the stack to be hot enough to prevent condensation, at its coldest point (which presumably is the top). Condensation is what makes the bad creosote. Somewhere I saw greater than 200F as the number to shoot for. You'd have to do some experimenting to find out how much the smoke cools going from your stove to the top of the stack... on my old (insulated) installation it was about 50-75F, and on my new (not insulated) one... I haven't measured yet, but I suspect it's a couple hundred degrees.