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[oaky]

I haven't done a hot burn on my BL yet or any wood heating stove/furnace (30+ years), Always been too afraid I might melt or wreck something especially now with this new unit or burning my house down while having indoor heating units. This question is primarily aimed at Slimjim, since he's the most reliable person I trust when it comes to P&M's, but I will greatly value anyone else's thoughts too who does hot burns on a regular basis on their owb's.

The other day while I was cleaning out the ash drawer, my BL started vibrating and the backdraft door in the air box was rattling away, I closed the ash door to about 2 inches and the vibration stopped. I assume this just air pulsating through the ash door into the fire box. I guess my main concern is, how long should I do the hot burn through the ash door without any damage to the unit. I would like to burn away this even thin layer of creosote inside the fire box & secondary heat exchanger, since we can't seem to get a good cold snap here in WI since I started by BL Oct 1. 68F for tomorrow, norm is 56F.

[slimjim]

I'm not sure about the vibrating but I have seen some of the old conventional's like the Wood Doctor physically move from boiling water, of course that was only when one of my buddies accidentally cut up a skidder tire and it accidentally fell into the fire box, as long as you keep the ash level low and it's not boiling the water out you will be fine!

[oaky]

No chance of warping any metal?

[slimjim]

Not as long as you keep the ash and coal bed down and it's full of water, keep the ash door closed, don't worry about the skim of creosote as it won't hurt a thing, it's the thick crap in the corners that are a bit of concern and we are not seeing that develop in the B-L

[oaky]

Alright Slimjim. Recently, I saw in my manual saying a 10 minute hot burn is recommended twice a week on the BL-2840. I probably don't need to do one as now, but just curious about my concerns when I might need to do them.

I am still open on how other owbs owners do them & any suggestions.

[slimjim]

I don't think I would let it run wild by leaving the ash door open!

[Crow]

  I did a few last season and the vibration/fluttering noise always happens. I just crack open the load door ever so slightly just enough to stop that from happening. I did read on here that others also had it happen so I consider it normal. Does it make a difference - MEH? I only did it because the manual said so, Have not done one yet this year.

[oaky]

I don't think I would let it run wild by leaving the ash door open!

No, I wouldn't do that, seems like 1-2 inches would be safe.

[oaky]

  I did a few last season and the vibration/fluttering noise always happens. I just crack open the load door ever so slightly just enough to stop that from happening. I did read on here that others also had it happen so I consider it normal. Does it make a difference - MEH? I only did it because the manual said so, Have not done one yet this year.

Hi Crow, any decent cold weather up your way yet?

[Crow]

  Not really, fired up to get the dampness out but daytime temps are creeping back up until end of next week. Any cold weather your way?

[oaky]

None at all, just a couple of 45's days beginning of the month, otherwise, 50-65 degree days, very unusual, maybe next weeks it will get cold. Would like to warm up this BL2840 a little more.