Smoke Spillage with my Grandpa Bear..

Due credit, where it is due...

...I just repeated what you had told me.

Thanks for chiming in with a very detailed post.

I always appreciate when a person tries to write more than one-liner comments.

 

Thanks Coaly for the reply and great info. I have tried operating the stove with and without the baffle. The only difference there was the stove top temp being lower without the baffle. I was still seeing the smoke spillage issue. I wish I had the room to have a 45 inside but I just don't have the height to make it work inside. I do however have the option to insulate the well casing. I have some high temp plenum insulation I could wrap around the casing and then wrap sheet metal or flashing around it. I originally went with the well casing because I got it for free and knew that I would never burn through it. A friend of mine also runs a well casing chimney on his barn and has no issues. But different stoves and scenarios. I should have just bit the bullet and put insulated pipe up from the start.

 

I insulated the vertical portion of my well casing chimney. I still need to insulate the 2' horizontal section and T. I've noticed a significant difference already. Once I start getting heat up the pipe I'm getting virtually no smoke spillage on reloads and stoking.Once I have a good bed of coals the stove and pipe are all up to temperature I can open both doors and have no issues. I'm also noticing hardly any if no smoke coming out the stack when the stove is shut down. Definitely seems to be running more efficient. Coaly have you ever seen a Grandpa Bear with the water jacket set up that is on mine?

 

No water jacket was factory, but most stoves in Europe have added water heating capability. (water backs)
Glad to hear you actually made a chimney out of your well casing.

With stronger draft (greater temperature differential between inside and outside of flue) you will have higher velocity air entering at the intakes. This mixes oxygen better with flammable gasses being expelled from fuel, raising firebox temperatures and burning off more smoke particles in the firebox. Once you get it insulated the rest of the way, the mass of your inner flue pipe is going to stay hotter than thin wall chimney pipe much longer, and allow easy smoke free starts long after other stainless chimneys cool down.

 

That's the Swiss Baffle

 

Glad you got things going better. Thanks Coaly!

My Hitzer has been humming along on nut anthracite. Can tend once a day, but I tend twice a day just to keep a better schedule. Really surprised by no smell in the house as well. Running 330ish above the doors, 175 on the stove top and the house is staying 74F...nice even heat and idling along. Way too much stove for this house if I need to fry-cook anything, but slow cooking I’m good. By accident I turned it down too low once and had 210 above the doors...don’t even know what the stove top was but the pipe was 94 and my inside masonry chimney 8”x8” was still drafting well. Would be even better if it were 6” chimney all the way out.