Ideal Flue temp?

[Maple1]

I introduced air under this year to my evaporator and I started boiling last night. Trial and error with the air.

1. Flue temp?
2. Installed a reo-stat to adjust air in but it appears to choke the flame down. Any suggestions?

Thanks

[Jec]

You might need more wood. Forced draft needs a good amount of wood to do its job. I never saw mine choke out because of too much air. Sometimes I want more air! Try more wood.

[Southtowns27]

Is your blower too small? Maybe it can't supply enough air. Shut the blower off and open your draft door all the way. If the fire picks up, the blower is too small.

[Maple1]

I will give it a try with a diiferent blower. What about the flue temp? If we read 550 at the flue, inside the firebox I would assume its around 600 or more. Is there a magical number that we should shoot for? Or what ever gets the best rapid boil?

[3rdgen.maple]

I could really care less what the stack temp is. Its what is happening in the pans that matter to me the most. If you got a good boil going then dont get all caught up in stack temps. If you dont then time to play some more. There are alot of vairable in how an evaporator fires. Stack height, stack diameter, size of wood, kind of wood, how you fire your rig, gap between flues and arch, insulation, cfm's of your blower etc. etc.

[Southtowns27]

I forgot to mention, if your arch does not have airtight doors, you should be able to get the flame to shoot out of all the cracks around the doors. Turn the blower speed up until you see this happen, then slowly slow it down until no more smoke/flame is coming out the doors. This is the correct speed to run at. It will be slightly different everyday.
If you have the blower at full speed and you don't get smoke/flame out the door cracks, the blower is too small. Get a bigger one and try again.

[Flat Lander Sugaring]

I forgot to mention, if your arch does not have airtight doors, you should be able to get the flame to shoot out of all the cracks around the doors. Turn the blower speed up until you see this happen, then slowly slow it down until no more smoke/flame is coming out the doors. This is the correct speed to run at. It will be slightly different everyday.
If you have the blower at full speed and you don't get smoke/flame out the door cracks, the blower is too small. Get a bigger one and try again.

Did this, added second fan on top of first fan and cranked them both. Added some hard hack wood about 4" dia. and made my straight VV grates into U VV grates so now I can add more wood
I ended up with smoke n sparks blowing out of all cracks n holes so I did limit air down until it stopped coming out just like southtown said.

[WESTVIRGINIAMAPLER]

I stand to be criticized but I get the best evaporation when I run stack temps of 1500 to 1700 degrees and I fire every 10 minutes.

[OneLegJohn]

Brandon - holy crap. I can just barely get to 975F. Is my blower too small? I don't have and airtight arch, so I'm probably limited.

[TapME]

I stand to be criticized but I get the best evaporation when I run stack temps of 1500 to 1700 degrees and I fire every 10 minutes.

Brandon, do you use a inserted temp gauge or a exterior mounted one?