• 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
  • Pearl Sutton
  • r ranson
  • Nicole Alderman
  • Mike Haasl
stewards:
  • paul wheaton
  • Joseph Lofthouse
  • James Freyr
master gardeners:
  • Carla Burke
  • John F Dean
  • jordan barton
gardeners:
  • Jay Angler
  • Greg Martin
  • Leigh Tate

Venting Root Cellars

 
Posts: 2
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Sepp Holzer's root cellar has PVC pipes for venting. Sepp Holzer

For a root cellar, would there be an advantage to having the white PVC pipes for ventilation versus a door to keep in the cool, constant temperatures? I live in MN.

Thank you.
 
pollinator
Posts: 308
9
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Just building my root cellar now, so i've been doing a bit of reading...'root cellaring' by Bubel seems pretty good. They make a pretty strong argument that proper vents will allow you to control temperature and humidity better. Ideally, they suggest an inlet and exhaust vent. Any scrappy scrounged pipe would work. Cellars larger than six by eight go with 6 inch pipe, otherwise 4 is ok.

The exhaust pipe enters the cellar at the ceiling, the intake pipe comes in at floor level so convection will drive the venting..the two pipes are preferably in opposite corners to encourage airflow across the cellar. Try to space shelving off walls and avoid dead air spaces that get no circulation. Dead air can mean condensation and moulding. If possible have the pipes cut flush where they enter the cellar wall to prevent dead air spaces there.

You'll have to be able to control air throw through the vents by blocking them off with something, perhaps something insulated, to keep things from getting to cold in the cold snaps.

I think i'll give the two vents a try, it doesn't seem like much extra expense or bother.



 
pollinator
Posts: 3679
Location: Kansas Zone 6a
133
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Intake can be the threshold under the door, but two pipes definitely work better. In MN, you will definitely want a way to close them off to keep from getting too cold. Double airlock doors and a way to heat if it gets close to freezing are important. A candle is probably enough for most people for the few days it is a problem, but a lightbulb is a lot more convenient if you are way north--you can even rig it to a Tstat to turn on automatically when the temp drops.
 
Troy Haskins
Posts: 2
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Thank you for your help.
gift
 
19 skiddable structures microdoc
will be released to subscribers in: soon!
reply
    Bookmark Topic Watch Topic
  • New Topic