• 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
  • paul wheaton
  • Jocelyn Campbell
  • Julia Winter
stewards:
  • Burra Maluca
  • Devaka Cooray
  • Bill Erickson
garden masters:
  • Joylynn Hardesty
  • Bryant RedHawk
  • Mike Jay
gardeners:
  • Joseph Lofthouse
  • Dan Boone
  • Daron Williams

Building a Rocket Mass late in the year?  RSS feed

 
Posts: 2
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I live in the mountains of Montana. I have traditional wood stove that needs to be installed. In the mean time we are using a Laser 56 Kerosone stove. Installing the wood stove will cost about the same as putting in a rocket mass heater. Can I do it this late in the season? I have a huge 1200 square ft octagonal main space to do it in. I can keep the temp at around 50 degrees... any thoughts? i need answers soon.

Thanks so much.
 
gardener
Posts: 2581
Location: Upstate NY, zone 5
92
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Do you have a good source of clay for cob that you can get inside now? Can you work mixing cob and making mud/dust in a heated area? (You really don't want to be trying to do this with materials at near-freezing temps!)
 
gardener
Posts: 1263
Location: latitude 47 N.W. montana zone 6A
114
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
brooke; What is lacking to install your regular wood stove ? It's averaging at or below zero this week in the mountains of montana. Stick that regular wood burner in and get it smoking , then build your RMH. As glenn said getting and working with clay at low temps would be almost impossible, it can be done, you'd need to get it indoors and warm . The same 8" roof jack that you use for your regular wood stove can be used for your rmh when its ready to go thru the roof. If it were me I would push the kerosene heater aside and use the smoking dragon of a regular wood stove while I acquired all the pieces and parts to build my RMH. By the way ... do you have a copy of ianto evans book "rocket mass heaters " ? if not then you should get one and read up this winter snuggled to your old wood stove and dream of next winter, of laying on your mass watching the snow fall...
 
Posts: 219
Location: S.W. Missouri, Zone 6B
8
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I am facing some similar concerns. I'm in SW Missouri, so not as severe of weather as the mountains.

I have to enclose a concrete floor porch before I can build my RMH, because I do not want that much weight on the wooden floor over the basement. But if you can throw tons of weight on your floor, you are good to go in that regard. And *if* you are going to also put in an adobe floor, there is nothing at all lost by tossing all that clay and sand on your existing floor (to become a sub-floor).
These are the kinds of details that are unique to each situation.

However, here is another thought, and it is what I'm doing because there is no way I can put in a RMH right now. Plus, I like the idea of testing a J-style rocket stove before building my RMH.

Right now I'm testing a dry stack J-style rocket stove outside. I'm at the point of prepping the barrel to place over it so I can take those test measurements (temperatures are my concern, for fire safety mitigation). Once I am happy with this, I am going to set up the rocket stove/barrel inside, and run that as my wood burning "barrel stove" but fed by a j-rocket for the "engine."

If your floor can take the weight right now, you can also stack up brick, block, rocks, etc around the stove and exhaust this winter, as you accumulate these materials. That'll give you some thermal mass. You can do this with either a standard wood burning stove or a j-rocket barrel stove.

I don't know if this is a better idea, but it is another idea
 
Erik Weaver
Posts: 219
Location: S.W. Missouri, Zone 6B
8
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
...and now I'm heading in a different direction. Ok think I'm just going to brace the floor and build the RMH in the living room.
 
You got style baby! More than this tiny ad:
Binge on 17 Seasons of Permaculture Design Monkeys!
http://permaculture-design-course.com
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!