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Insulated ducts

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Posted by Father Haskell on December 29, 2008, 5:12 am
Short pipes, maybe 36" max.  Preferred methods for
building these?  Thanks.

Posted by Charlie on January 1, 2009, 1:42 am
Father Haskell wrote:

air ducts? 1" or 2" rigid foam insulation glued together with 'Great
Stuff' canned foam comes to mind....

Posted by Father Haskell on January 1, 2009, 6:50 pm
I should have specified -- these are to be exposed to full sun,
heat, and UV for 2 to 5 years with little or no maintenance.
I'd require either durable materials or cheap (less than $0/
unit) replacement every few years.

Appearance is not of primary importance.  I'd accept
duct tape wrapped over fiberglass if the stuff didn't
turn into gunk.

Posted by schooner on January 1, 2009, 12:07 pm

You can buy flexible insulated ducting, or slide on insulation for ducts, or
simiply build a box around them and insulate the inside.

Posted by Father Haskell on January 3, 2009, 1:07 am
 On Jan 1, 4:47 pm, david.willi...@bayman.org (David Williams) wrote:

Moso log diameters can exceed 6".  Can be grown in the
United States.

Looking for 4" inside diam, same as common dryer duct.

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