For the last few years, I've been making a moderate amount of maple syrup from the maples on my property. I've alternated between evaporating over a hearth made from cinderblocks with a homemade chimney, boiling inside the house (and dealing with ventilating lots of moisture), and a propane burner (burned way too much propane).
I'd like to cut down on my inputs (ie, wood and time) as much as possible, and I am very interested in what's been done here over the years as I've watched the batchbox and now DSR / DSR2 designs evolve. Perhaps my best plan forward would be a simple rocket stove with a pot on top, but I'd like to see if anyone has any other thoughts on the best way to induce prolonged, vigourous boiling without needing to feed the stove any 10 minutes - I'd love to be able to check on it hourly, at least in the early stages when I'm trying to boil off as much moisture as possible as quickly as possible.
The other side of the coin is form factor - I have done most of my boiling in large stock pots, which nearly as efficient as you would get with a larger but shallower evaporation container due to the relevant difference in evaporation area.
Post by emilsagroforest on Dec 2, 2019 3:12:59 GMT -8
When we started making syrup we used a homemade finishing pan about 24"x 36" and 4" deep. We used a barrel stove kit and cut the top of the barrel to set the pan into and then used a large canning pot with a spigot as the pre-heater above and behind the pan. It worked pretty well but it required constant care. If you walked away the syrup could burn and warp the pan or the sap would overflow and kill the boil.
We have since upgraded to a 2'x6' leader drop flue evaporator and now the sap feed is regulated with a float valve, so that's one less task but still a concern, (should it clog or stick open). The main task is maintaining constant heat on the pans which requires adding wood every 8 minutes or so. It uses a lot of wood and a ton of fuel is wasted out of the stack. The stack is 7".
I too have been following the DSR2 build and wonder if it would be worth trying to build one inside the firebox. My concern is that since the operation is rarely less than 8 hours long, after a while the ashes will build up and not allow any room for the fuel.
TexasGonzo: Sooooo glad I found this site! Its always rewarding to find such a super group of folks! To any and all, feel free to PM me anytime. Thanks for having me!
Mar 11, 2019 18:56:41 GMT -8
jlmtech: GADGET: CONSIDER USING A JET PUMP INSTEAD OF A BLOWER FAN TO INDUCE DRAFT; NO CLOGGING.
Mar 26, 2019 8:19:28 GMT -8
michaelegan: i am unable to open the sketchup files on my mac. I used sketchup a few years back but apparently the company now requires a subscription. does anyone have any advice/instructions on how to use the program or how to view pictures without spending money?
Aug 20, 2019 18:41:48 GMT -8
mannytheseacow: michaelegan: download AutoCAD student version for free... import .SKP
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topbaza: hi everyone, been searching all over net and this is were i need to be i think!!
Sept 28, 2019 6:16:25 GMT -8
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Sept 14, 2020 7:29:27 GMT -8
deadstarsstillburn: Hi there. I was directed this way by folks on the Permies.com website and am hoping I can get some information on how a total newbie can get started designing, siting, building, and not-dying-in-a-horrible-house-fire with a new RMH in a 160-year old home
Oct 21, 2020 6:52:10 GMT -8
deadstarsstillburn: The people over there recommended either a 6" batchbox or an 8" J-tube. I don't know what those are but am going to try to figure that out. What I need is a blueprint that I can scale to fit the need for my house. I have something likne 5000 square feet
Oct 21, 2020 6:53:00 GMT -8
deadstarsstillburn: but I do not need to heat all of it by any means. probably only need to heat half of that, maybe less.
Oct 21, 2020 6:53:15 GMT -8
deadstarsstillburn: moreover, the house has 3 storeys (large attic) so I assume if I get very efficient heating on the ground floor, that will go a long way toward heating the upstairs as well, no?
Oct 21, 2020 6:53:59 GMT -8
BenAlexanderT: Happy new year everybody. I wish you the best
Dec 31, 2020 15:06:14 GMT -8
Solomon: Anybody in Southern Oregon, in Jackson or Josephine counties?
Jan 16, 2021 21:54:43 GMT -8
gnomedome: i realsie this is from 2009
Apr 14, 2021 8:30:44 GMT -8
gnomedome: i realize this is from 2009 id love to see the photos from this ..as im looking to build a sauna soon similar to this .... if anyody sees this post email@example.com..... the photos in this post did not show up
Apr 14, 2021 8:32:00 GMT -8