• Post Reply Bookmark Topic Watch Topic
  • New Topic
permaculture forums growies critters building homesteading energy monies kitchen purity ungarbage community wilderness fiber arts art permaculture artisans regional education skip experiences global resources cider press projects digital market permies.com private forums all forums
this forum made possible by our volunteer staff, including ...
master stewards:
  • Anne Miller
  • Nicole Alderman
  • r ranson
  • Pearl Sutton
  • Mike Haasl
  • paul wheaton
stewards:
  • Joylynn Hardesty
  • Dave Burton
  • Joseph Lofthouse
master gardeners:
  • jordan barton
  • Greg Martin
gardeners:
  • Carla Burke
  • Ash Jackson
  • Kate Downham

Rocket stove mass heater location?

 
Posts: 2
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
This spring, I've been slowly working through the "The Rocket Mass Heater" book by Erica and Ernie Wisner because I'm interested in building a stove to heat my home.  From what I've read in the book and a few other on-line sources, indicates that a rocket mass heater functions best when located directly in the living space of the home.  The physical layout of my home does not allow for this.  I have been heating my home for over 20 years with a basic down-drafter wood stove located in the unfinished basement of our house.  The heat from the basement passively maintains the entire house at a comfortable temperature throughout the winter (1600ft^2, ~5 cords).  We live in the mountains of northern Vermont and -25F or lower is not at all uncommon.   The basement has plenty of space to accommodate a rocket stove with a thermal mass structure typical of what the book designs show.  What I'd like some input on is whether locating the rocket stove there would be able to heat the entire house as we are currently doing with the wood stove.  Does anyone have a similar setup?  I'm really liking what I read about having a cleaner burning stove and more efficient heating in general, if this will work.
-Mark
 
gardener
Posts: 3752
Location: latitude 47 N.W. montana zone 6A
1029
cat pig rocket stoves
  • Likes 3
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi Mark; Big Welcome to Permies!  And another big welcome to the wonderful world of Rocket science!
I added your post to the rmh forum for you.

Normally we do not recommend placing a RMH  in a basement.
A J tube design like your reading about in the builders guide would require feeding every 45 minutes or so.
While it was burning your home would be comfy.  At night however , (at below zero) with no fire. Only the basement would gain from the radiant heat.

There are options)  To start, in your location I would suggest building a batch box design RMH.  
You will not find much info about them in the builders guide.
Here is a link to the best technical information available about them. http://batchrocket.eu/en/  
Here is another link to a batchbox builders forum. https://donkey32.proboards.com/
We also have info here at permies... I suggest lot's of reading for you... you will be impressed!
A batch box burns even hotter that a traditional J tube and it burns longer as well.
Wood is larger and loaded horizontal.The stove burns wide open.  In well insulated homes , batch boxs are generally burned only in the morning and evening.  
During your arctic freezes you would burn it more.
With a batch box you have the option of not using a horizontal piped mass, but you can build a vertical brick bell. They can made to fit in any odd areas that your living area has available.  
Maybe you might have a spot in your living area where a tall skinny brick bell could be built ?
Extra floor support is generally not needed with a bell.

EDIT)  A J tube RMH can be built with a bell also.
 
gardener
Posts: 1304
Location: Westbridge, BC, Canada
345
building solar woodworking rocket stoves wood heat greening the desert
  • Likes 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hello Mark,   Found a few other people out there that have asked the same question you have. Give us another shout if there is more information or specific questions that come up.

RMH-built-basement-radiate-upstairs

Rocket-Mass-Heater-Basement

Rocket-Mass-Heaters-questions

 
Mark Tucker
Posts: 2
  • Likes 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
@Gerry,  Thanks for the links.  I'll be doing some more reading this evening and that's at the top of the list now.  
 
gardener
Posts: 3268
Location: Southern alps, on the French side of the french /italian border 5000ft elevation
163
  • Likes 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Well, i have lived for four winters with a batch in my workshop. The flat being above.

It's perfectly doable. Mind you, it is not that simple. I have no door between the workshop and the lounge. So heat goes up, but dust also. The bathroom is sitting on the  bell pretty much.

I can hear the fire from the flat. So I rarely forget to reload. Tho, I have to overheat a smidge. To have the flywheel effect also.

I cook in it a lot too. On the plate, or the oven. So food smell goes up too. Not that good with grilled sardines.

Next step is to make another bell upstairs. And a bypass to help startups with the added bell.
 
Posts: 9
Location: Spokane, WA.
  • Likes 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I'll be building my RBMH in my basement as well. Just no good place for it on the main floor. I'll be going with a bell for the mass, and connecting to an existing masonry chimney that I will line with stove pipe and insulate. I had planed on building it last summer but building a chain link fence to make sure my dogs and property were safe took priority - damn that's some serious work there. Digging post holes isn't my idea of fun.
gift
 
100th Issue of Permaculture Magazine
will be released to subscribers in: soon!
reply
    Bookmark Topic Watch Topic
  • New Topic