• 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 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
  • Pearl Sutton
  • James Freyr
  • Mike Haasl
stewards:
  • Burra Maluca
  • Joylynn Hardesty
  • paul wheaton
garden masters:
  • Greg Martin
  • Steve Thorn
gardeners:
  • Carla Burke
  • Jay Angler
  • Mike Barkley

Minimum riser height for 6" RMH

 
Posts: 2
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi All,

I'm playing around with making a RMH and I had a couple of questions if you could assist me...

1. What's the minimum effective riser height for a 6" riser? I need this RMH to achieve quite high temps.

2. Can I have 6" feed and 6" riser and 6" exhaust? Or do I need to increase one of those components?

Many thanks for your help. Jim.
 
Posts: 227
Location: US, East Tennessee, north of Knoxville
14
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Maintaining a 6" CSA throughout will be no problem. Riser height depends on the construction materials used, how the system is built, and whether including gas mixing build modifications, chimney system design and etc. Tallest of 6" risers range from 44 ~ 48 inches. But there's lots more to consider. Here's "the book" every RS/RMH builder/tinkerer should have in his/her library. It addresses all the details of construction, materials choices, and also covers the RMH foundation right up to the top of the chimney:

http://www.newsociety.com/Books/R/The-Rocket-Mass-Heater-Builder-s-Guide
 
Jim Storey
Posts: 2
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Thanks Byron. I'm actually looking for the shortest height, not the tallest height.

Any ideas??
 
Byron Campbell
Posts: 227
Location: US, East Tennessee, north of Knoxville
14
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Have you checked out Matt Walker's riser'less core design? -->

http://donkey32.proboards.com/thread/1624/walker-riser-less-core?page=1
 
Look ma! I'm selling my stuff!
One million tiny ads for $25
https://permies.com/t/94684/million-tiny-ads
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!