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View Full Version : Running Evaporator off level


Big_Eddy
02-06-2013, 10:31 AM
Has anybody ever tried deliberately running their evaporator a little bit higher at the back than the front so that the sap is deeper in the syrup pan than in the flue pan? Maybe 1/2" difference between the back and the front of the evaporator?

I'd be comfortable running at 1/2" over my drop flues in the sap pan, but I prefer to run > 1" deep in my syrup pan.

I'd set the float box to get the level I want. Gravity should do the rest for me.

Any thoughts?
Yellzee
02-06-2013, 11:15 AM
Big Eddy, tried to PM you but apparently your mailbox is full. Can you delete a few and PM me back?
Kngowods
02-06-2013, 11:16 AM
Why couldn't you just block up your rear pan? Like put a 1/2" spacer on the rails
RUSTYBUCKET
02-06-2013, 04:59 PM
Big Eddy -

My D&G 2x6 Drop flue is manufactured that way.

http://mapletrader.com/community/showthread.php?17386-Question-about-a-2x6-dropflue
markcasper
02-07-2013, 03:21 PM
your actually suppossed to run an arch with it raised slightly in the back. my neighbor has about a 3/4"- raise in the back on a 4x14 and he has no problems thing boils sweet.
AVALLES
02-11-2013, 06:49 PM
I have a 2x4 how far should I have the back raised?
bees1st
02-11-2013, 07:45 PM
your actually suppossed to run an arch with it raised slightly in the back. my neighbor has about a 3/4"- raise in the back on a 4x14 and he has no problems thing boils sweet.
You sue about that??? Raised in the back means less depth in the back. I've ALWAYS heard level.
markcasper
02-12-2013, 06:10 AM
It says in the instructions for my old King pans to raise the back of arch approx. 1/2".
DrTimPerkins
02-12-2013, 09:37 AM
It says in the instructions for my old King pans to raise the back of arch approx. 1/2".

It all depends upon the evaporator. This was more common years ago. Raising the back would make it a little shallower in the back (sap) pan to enhance evaporation rate, but leave it deeper in the front to avoid scorching in the syrup pan. You definitely don't want too much slope though, especially on a small (short) set of pans.

Most new evaporators are designed to be run level. Some evaporators (depending upon design) have two float-boxes, so you can regulate the depth in the pans (relatively) independantly.