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[Jwood]

Slimjim or any Bl owners here is my issue, setpoint is 190 with a 10 degree differential and I don't know if I'm leaking air so that the fire is not choking down enough or what the problem is but I just checked the aquastat and I was at 196 and slowly climbed to 199 before I turned my radiant infloor up to pull some heat out of the boiler. The boiler has always had more smoke out of the stack than my brother in laws heatmor and I'm just curious as to what everyone thinks?

[Bud Man]

I would check for air leaks but, I would set my temp back to 180 and see what happens. I see my 2840 creep up a little bit once in a while but not more than 3 or 4 degrees.

[Jwood]

Thanks bud man what I think was happening is with it set at 190 there is so much heat in the fireboxim thinking but not totally sure that the heat was naturally trying to rise and pulling enough draft that it was possibly pulling the fan flapper open? Who knows though as soon as I can order the new silicone gaskets I'm going to do that as well I just don't believe I should be having a fire burning enough after shutdown for temps to keep climbing up to 200 degrees.

[slimjim]

Jwood, you should already have the silicone gaskets! if not lets find out why and get them for your unit! Have you tried putting less wood in on the warmer days?

[Jwood]

No slim my unit was a carryover from the previous year so the loading door has the good gasket but the top and bottom dont. I'm thinking I would have a lot less creasote with the new gaskets as well.

[Jwood]

Turned my set point down to 185 still getting the same climb way too much smoke coming out the stack at idle.

[slimjim]

how much are you loading and what is your burn time?

[Jwood]

Loading it just above the bottom of the loading door and my burn times vary depending on how often the in floor calls for heat but I would say at least 8 hrs right now but its been pretty mild so far this winter I know I can get 12 hrs if I load it up.

[oaky]

I've had all sorts of fluctuations in the first couple of months, too much smoke out of chimney, overshooting temps, creosote build-up etc. It's definitely been a learning curve for me. I think the Bl-2840 & myself have become pretty good friends now.

[Jwood]

I've had all sorts of fluctuations in the first couple of months, too much smoke out of chimney, overshooting temps, creosote build-up etc. It's definitely been a learning curve for me. I think the Bl-2840 & myself have become pretty good friends now.

Teach me your secrets Oaky!

[Uponthehill]

JWood. My set point has been 190/10 but recently have reduced to 188/8. Not much different but due to an overnight pump failure/high limit shutdown, I like the slightly lower op temps. My final temp doues go to ~ 193 even set @ 188.  I've had a fire in mine since November 8, 2014 and have learned a great deal. Still learning something new every week. Very little idle stack smoke, but all my gaskets are new. Stay warm...

[Jwood]

I need them new gaskets I'm sure!

[cando attitude]

One thing that may be contributing to your temperature climb is your adjuster plate on your blower.  It seems like this would draft more air than a leaky gasket.  The blower is open by design.  Depending on where you run your adjuster plate is set, i.e. if its wide open, then on a warm day this may be a big factor.

That being said, where do you guys typically run yours at?  Personally, I run mine only about a 1/4 of the way open.  Yes this does slow the recovery down a bit but it also allows more dwell time in the heat exchanger and ultimately should allow one to burn less wood.....how much less, I don't know.

Cando