Win a copy of The School Garden Curriculum this week in the Kids 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
  • paul wheaton
  • Anne Miller
  • Mike Jay
stewards:
  • Jocelyn Campbell
  • Burra Maluca
  • Devaka Cooray
garden masters:
  • Dave Burton
  • James Freyr
  • Mike Barkley
gardeners:
  • Joylynn Hardesty
  • Greg Martin
  • Pearl Sutton

Inexpensive vacuum formed ceramic fiber heat risers here in USA  RSS feed

 
Posts: 54
2
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I was interested in hearing more about an 8" riser.
 
Posts: 211
21
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator

Thomas Tipton wrote:I was interested in hearing more about an 8" riser.


Unfortunately the original company mentioned in this post went out of business. The company that bought them out would make an 8” riser if requested but there would be a $1000 mold fee up front, so unless a lot of people organized a group buy for 8” risers it would be cost prohibitive.
 
Thomas Tipton
Posts: 54
2
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Thanks Brian,  I have been planning on making a riser out of shredded ceramic fiber using a mold constructed from a 48" length of 8" Sonotube and a 48" length of 12" Sonotube.  I was going to saturate the fiber with Sodium Silicate, then pack it into the mold and cure it with carbon dioxide. Probably by using a vacuum pump and CO'2 cylinders.

Hopefully, when it is set, I would be able to slide it out of the Sonotube and then coat it inside and out with 3000 degree refractory cement.  This would give it a "Hot Face" on the inner surface, and the application on the outside just to give it added strength and rigidity.  

Any idea if this has been tried before?  To what degree of success?
 
I can't beleive you just said that. Now I need to calm down with this tiny ad:
The Better World Book Kickstarter (April 2019)
https://permies.com/w/bwb
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!