• 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 pie forums private forums all forums
this forum made possible by our volunteer staff, including ...
master stewards:
  • Anne Miller
  • jordan barton
  • Pearl Sutton
  • Leigh Tate
  • paul wheaton
stewards:
  • r ranson
  • Nicole Alderman
  • Greg Martin
master gardeners:
  • Carla Burke
  • John F Dean
  • Jay Angler
gardeners:
  • Nancy Reading
  • Mike Barkley
  • Christopher Shepherd

Possible blow out on riser casting !

 
Rocket Scientist
Posts: 4545
Location: latitude 47 N.W. montana zone 6A
1598
cat pig rocket stoves
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Went out to check my cast riser this morning, looked good! Removed my sheet metal form , smoothed the cast nice and firm, rounded off the top nicely ! It was ready for the hottest day so far this year (80) predicted... going to let it cure all day ... maybe by tomorrow morning I will try lighting it off ! WRONG ! I decided I would lift the 55 gal barrel over the top of the riser and start prepping its location to seat it in cob. Imagine my distress when I looked down my sonitube form only to see it trying to buckle inward from the moisture in my mix !!! Oh SxxT ! Decided that the only thing to do was slap cob down around the 55 and light it off and see what the cast looks like afterwards... it was possible that it could have caved in on me while trying burn it ! Well it didn't cave in while burning! I won't be able to remove the lid till later this afternoon to see what happened ... I'm hoping for the best and planning on casting a new riser if needed. I was very impressed at how quick the new core took off, even with a sopping wet riser and cold wet brick core ,I registered 816 F at the barrel top in no time. Its down to coals now, I just have to wait for it to cool off enough to open the lid and look inside.... fingers crossed .
DSCN4009.JPG
[Thumbnail for DSCN4009.JPG]
DSCN4012.JPG
[Thumbnail for DSCN4012.JPG]
DSCN4015.JPG
[Thumbnail for DSCN4015.JPG]
 
thomas rubino
Rocket Scientist
Posts: 4545
Location: latitude 47 N.W. montana zone 6A
1598
cat pig rocket stoves
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
It Worked ! There is a bulging where the form crippled but it's solid , and I don't think it will adversely affect the flow enough for me to bother with. I won't need to cast a new riser after all ! The cone on top had some heat cracks from heating so fast when wet , but an application of fireclay and it looks good as new ! Lesson learned! stay with the brand that works... this method worked flawlessly last time the only difference is the brand of sonitube, this one was slightly thinner but seemed to have a waxed coating. I thought it would be fine... Wrong ! Good news is the new core worked very well considering how cold and wet the riser was.
DSCN4027.JPG
[Thumbnail for DSCN4027.JPG]
DSCN4024.JPG
[Thumbnail for DSCN4024.JPG]
DSCN4032.JPG
[Thumbnail for DSCN4032.JPG]
 
Whoever got anywhere by being normal? Just ask this exceptional tiny ad:
100th Issue of Permaculture Magazine - now FREE for a while
https://permies.com/goodies/45/pmag
reply
    Bookmark Topic Watch Topic
  • New Topic