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  • From: sjc <indexer AT fairpoint.net>
  • To: homestead AT lists.ibiblio.org
  • Subject: Re: [Homestead] for you inventor types
  • Date: Wed, 17 Dec 2008 19:15:03 -0500

Gene GeRue wrote:
On Dec 17, 2008, at 4:41 PM, sjc wrote:

I want something that will shrink against the pipe/seam and make an
airtight seal.

Sounds good, but that might make it almost impossible to later take the pipes apart as the inevitable day arrives when they need to be replaced. Unless you have some expensive ones that don't rust.
Well, generally replacement means they're gone, anyway, was my thinking.
I am far from a metallurgist but it seems to me that metal expands when it heats. What you desire may be alchemy. Do you own a pointy hat?
No. Rats.
Anyone price the double- or triple-walled pipes recently?
That stuff has always been horridly expensive. Around here, if you've got room, you can have built a nice lined masonry unit for nearly the same price.
My foggy upstairs is thinking that five or seven small self-tapping screws spaced around the joint would keep it pretty tight.
That's what I've got there now and I can hear the air sucking through it in several places.

SJ




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