Win a copy of Permaculture Design Companion this week in the Permaculture Design forum!
  • 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 experiences global resources the cider press projects digital market permies.com private forums all forums
this forum made possible by our volunteer staff, including ...
master stewards:
  • Nicole Alderman
  • r ranson
  • Anne Miller
  • paul wheaton
stewards:
  • Jocelyn Campbell
  • Mike Jay Haasl
  • Burra Maluca
garden masters:
  • James Freyr
  • Joylynn Hardesty
  • Steve Thorn
  • Greg Martin
gardeners:
  • Carla Burke
  • Dave Burton
  • Pearl Sutton

Bench in basement, Rocket above ground?

 
                        
Posts: 7
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Is it possible to generate enough push in an above ground rocket riser, to drive the heat down to a thermal mass in a basement? Of course the exhaust still needs to exit above grade.

Has anyone tried this? Let me know if you've had success. I'm not interested in quick radiant heat, but rather, store as much heat as possible in the mass. I'd hope to insulate the riser, and downer if possible since I'd rather have the combustion unit just outside of the foundation.
Comments?
Dakman
 
                                
Posts: 8
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Sorry I don't have an answer for you.....I'd like to know the same thing.  I want to go "downward" with my exhaust pipe, and wondering if there will be a "draw" issue if you do?  Hoping someone replies to us both!
 
                            
Posts: 23
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
i don't know the answer - but after the proposed downward run, are you planning to exhaust at a higher level than the fire box? 

My gut tells me this is going to be difficult.  It might be possible with a fan to assist the start of the process, but you may find it challenging to beat physics.  Many designs I see actually specify a slight upward pitch of the entire "in-bench" portion of the flue.

I'd worry that the system would want to naturally run backwards - i.e fire and smoke blazing out of the wood-feed hole.
 
Posts: 1206
Location: Alaska
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
It's a matter of ratios and resistance. If you make the insulated heat riser taller, and dump more heat out through the cowling (barrel) you can push warm exhaust down further than you would otherwise be able to.
 
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!