• 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
  • Joylynn Hardesty
  • Dave Burton
  • Joseph Lofthouse
master gardeners:
  • jordan barton
  • Greg Martin
  • Carla Burke
  • Ash Jackson
  • Kate Downham

Exhaust design

Posts: 2
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Just built my first stove. Couldn't get it to draft properly with a vertical feed tube so I capped it at the base and have gone horizontal for now.

Now I'm onto the exhaust. What is the consensus on a direct line from the exhaust port to the outside stove pipe? My other option is a 90° and a short rise before a second 90° to a wall thimble and THEN to the outside stove pipe.

I need to get this installed this week- input is desperately needed

Posts: 3124
Location: Upstate NY, zone 5
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
From your other post, you built a 4" J-tube RMH. This would be considered an advanced project, and has to be done exactly right to work well (or at all). It would also have a small output at best, only suitable for warming one room. What is your layout like: room size, connecting spaces, total house, chimney height above floor level, your climate...?

Asking about connecting to a chimney sounds like you don't have any such connection yet. If that is the case, it's no wonder you had issues. A 4" system would probably be incapable of functioning without a good chimney to add draft. Do you have any mass around the exhaust yet? Can you measure the temperature of your exhaust directly after the RMH barrel, and at the location of your chimney connection?

What is the length from the barrel to the chimney connection? A 4" system would have a short maximum run, and two 90s would further decrease the length it can handle.
Garden Mastery Academy - Module 1: Dare to Dream
will be released to subscribers in: soon!
    Bookmark Topic Watch Topic
  • New Topic