Burn time with new insert

So last night at 11 PM and the stovetop on my Osburn 2400 at 300 degrees, I placed three pieces of wood in and within 30 minutes it was red hot and around 400 degrees, air all the way shut. House was a nice 72 degrees. It still blazes even though the rod is pushed in all the way. With my old cat stove, no way. I could chock it down to nothing. Get up around 3 to walk the dog, and just a bed of coals, house is 68 degrees. Put in 3 more pieces, hang out, shut it down, get up at 6, and coals, house at 66 degrees. It seems if you get the box temp up to 400, the would you put in burns up quickly, and is not controllable with the rod all the way in. If you drop the temp of the box to 200 degrees and add a few pieces, it takes off again and burns out fast. It seems like there is no happy medium!

I didn't get away from them, I still own a Jotul 8 for the last 20 years. When my 20 year old pellet insert finally went, I replaced it with an Osburn 2400 insert, but it is trying to learn how to burn again. one thing I don't know is, what is the max temp for the stove top. Perhaps I'm just burning at to low a temperature.

Explained this problem to my dealer. Going through wood every 3 hours or so, then down to coals. Pushing the rod in all the way, I still get a runaway fire. His suggestion, because my chimney outside is about 30 feet high, is to replace the chimney cap with a smaller one. He says this will reduce the draft. Ever heard of doing this?

This is an insert. I have no access to the pipe. I definetly feel that the draft is way to strong. The idea of choosing a smaller cap makes sense, however, I don't know if that will cause any creosote problems. My installer, who is reputable, says it should not cause problems, but should reduce draft.

He did not suggest downsizing the liner, but when I sent photos of the insert blazing with the air pushed in, he was quite surprised. That's when he suggested putting on a smaller cap. I also told him my stove top can reach 400 degrees when it's blazing, and that I had concerns. He pretty much told me that I can throw away the temp gauge and the new steel stoves are trouble free as far as temperature goes. He told me the top could hit extreme temperature and that it would be fine!

Bagelboy said:

He did not suggest downsizing the liner, but when I sent photos of the insert blazing with the air pushed in, he was quite surprised. That's when he suggested putting on a smaller cap. I also told him my stove top can reach 400 degrees when it's blazing, and that I had concerns. He pretty much told me that I can throw away the temp gauge and the new steel stoves are trouble free as far as temperature goes. He told me the top could hit extreme temperature and that it would be fine!

Click to expand...

Here is a picture with the stove at 300 degrees, 3 pieces of wood on hot coals, and air rod fully shut.View attachment 115916

Bagelboy said:

He did not suggest downsizing the liner, but when I sent photos of the insert blazing with the air pushed in, he was quite surprised. That's when he suggested putting on a smaller cap. I also told him my stove top can reach 400 degrees when it's blazing, and that I had concerns. He pretty much told me that I can throw away the temp gauge and the new steel stoves are trouble free as far as temperature goes. He told me the top could hit extreme temperature and that it would be fine!

Click to expand...

Here is a picture with the stove at 300 degrees, 3 pieces of wood on hot coals, and air rod fully shut.

Don't know why that's sideways!

Any input as to to much draft?

We're you able to get a stovetop temperature? I'm starting to think I should crank the stovetop up to 450 or 500 degrees, throw in just one or two pieces, before bedtime, let it crank up, and by the time I wake up 6 hours later, perhaps the box will be 300 degrees or so!