Win a copy of The Biotime Log this week in the Permaculture forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
permaculture forums growies critters building homesteading energy monies living kitchen purity ungarbage community wilderness fiber arts art permaculture artisans regional education experiences global resources the cider press projects digital market permies.com all forums
this forum made possible by our volunteer staff, including ...
master stewards:
  • Nicole Alderman
  • raven ranson
stewards:
  • paul wheaton
  • Jocelyn Campbell
  • Julia Winter
garden masters:
  • Anne Miller
  • Pearl Sutton
  • thomas rubino
  • Bill Crim
  • Kim Goodwin
  • Joylynn Hardesty
gardeners:
  • Amit Enventres
  • Mike Jay
  • Dan Boone

Rocket stove in old furnace oil tank?  RSS feed

 
Posts: 5
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi guys, just thinking out loud here..... I am going to try my hand at tapping a few maple trees this winter and boiling it down into syrup. On one of the websites that I have found a few guys have turned old furnace oil tanks into evaporators for the boil down. They basically cut the top off, put a fire box in the front, chimney in the top at the back, and have the heat pass their boil boxes on it's way out the chimney. Seems like a pretty easy build, and looks like it boils off quite well, but was wondering if it's possible to make a rocket stove work instead? They mention that it takes a lot of wood to get to the syrup. ... Or if it would even be any improvement from what they have created? Any ideas would be great before I start cutting up my tank.
 
gardener
Posts: 2794
Location: Southern alps, on the French side of the french /italian border 5000ft high Southern alpine climate.
100
 
Jamie Duncan
Posts: 5
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Thanks for the link Satamax! From what I read on these posts, nobody really has a surefire rocket stove figured out for maple boiling yet. As it is my first attempt at the whole maple syrup hobby, think I will just build the simple evaporator for now..... gives me a full year to try to figure out if a rocket may improve things.
 
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Jamie,

Watch it on this one, you do risk scorching the sap if you apply too much too fast to it. Maybe a heat exchanger in line between the rmh and the boiling pot so you could dissipate some heat for building heat might work out.
 
Jamie Duncan
Posts: 5
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Thanks Jerry! I read a couple posts stating that could pose a problem. One said to have the boiling pans sit in water, and have the rocket heat the water. That seems redundant! Good thing is I am not in any rush to complete it this year, so maybe somebody here smarter than me can come up with a solution..
 
Posts: 52
1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Using water to dissipate and distribute the heat is a good idea. That would help keep the sap pans from having hot spots.
 
Posts: 320
Location: NC (northern piedmont)
14
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
While it's not specifically for concentrating sap, I think this dryer design could be modified to do it.

http://www.aprovecho.org/public/Publications/Still-The.Winiarski.Wood.Fired.Agricultural.Food.Dryer.pdf
 
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!