"NT" <meow2...@care2.com> wrote in messagenews:email@example.com...
On Nov 19, 6:25 pm, fred <n...@for.mail> wrote:
> In article*Yes. But thats a costly way to do it.
> D.M. Procida <real-not-anti-spam-addr...@apple-juice.co.uk> writes
> >There's no heating in the garage, but there is damp.
> >On the other hand, it does have a nice large south-facing roof, so I
> >I have in mind a wooden frame, containing a long folded tube behind a
> >The tube would be a long series of aluminium drinks cans, painted matt
> >The will have ducts to the garage; one to draw cold air out of it, and
> >A small solar-powered fan would draw air through the tube.
> >I've found several descriptions of such projects, and their success.
> >Using air rather than water seems much simpler than trying to make a
> It might be nice to add some thermal mass to the system so that heat
*You also cant have circulation by convection when the heat source is
*on the roof.
For some values of can't - if the heat exchanger is on the lower 2/3 of the
Helmuth von Moltke the Elder
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