Damper in double wall pipe

[begreen]

I would bet your flue temps past the damper have dropped considerably.

That's what I noted even on a short stack with the F602.

 

[bholler]

That's what I noted even on a short stack with the F602.

Yeah often it also increases stove top temps as well.

 

[Ashful]

Do you measure flue temps as well? I would bet your flue temps past the damper have dropped considerably. I know in my old house with 35' flue i could increase the stove top temp by quite a bit by using my stack damper. Without it to much heat was getting sucked up the flue

On this particular stove, I was running blind, prior to installing the damper. I just installed a flue probe thermometer, at the same time I installed the damper. So, I get some "after" numbers, but no "before" data.

 

[begreen]

On this particular stove, I was running blind, prior to installing the damper. I just installed a flue probe thermometer, at the same time I installed the damper. So, I get some "after" numbers, but no "before" data.

Run the stove with the damper open to approximate the before condition.

 

[Ashful]

Run the stove with the damper open to approximate the before condition.

I will plan to do that, to get some numbers at low and medium burn. I want to avoid doing the same on high, just because I'm tired of having to shut down and vacuum off the combustor each time I clog it with fly ash. Running this stove on high, on this particular chimney, is a definite recipe for a fly ash-clogged cat.