SB: air Cooling tubes

["Chuck & Linda" <clearned@bminet.com>]

Hello Cool Cats,

I am about to prepare my building pad. I was hoping to incorporate air
cooling tubes. I read the posts from Bill and Gary and I see the importance
of smooth tubes and perhaps to put drain holes in the tubes. This mold issue
has got me nervous though and the idea of servicing the tubes sounds equally
difficult.

My pad design was to use rubble trenches and place the air tubes say 4-6
inches above the drain tile tube. The tube would be about 4-5' below grade.
The actual trench is only 2' deep as I will have 21/2' of sand, loam, rock
for a heat sink above the trench. We will be pumping solar heat into the
sink.

I am trying to figure out if the tube idea is going to be problematic and
what other details to incorporate. Roald Gunderson an architect who works
with solar greenhouses uses this technique as it dehumidifies his greenhouse
and of course tempers fresh air.  I was thinking along the same lines as we
will be placing the tube ends into our greenhouse which is attached to our
home.

Looking for insights,  experience.

Chuck Learned


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