On Nov 19, 4:38 pm, real-not-anti-spam-addr...@apple-juice.co.uk (D.M.
Procida) wrote:not at all, shade cloth is like netting
> NT <meow2...@care2.com> wrote:
> > On Nov 19, 12:28 pm, real-not-anti-spam-addr...@apple-juice.co.uk
> > (D.M. Procida) wrote:
> > > NT <meow2...@care2.com> wrote:
> > > > I think the gold standard for air heaters is 3 layers of black
> > > > shadecloth fixed in its frame at an angle like so:
> > > > air in at bottom, out at top. Glazing is on the right. Unheated income
> > > > . ______
> > > That - also:
> > > looks a lot simpler than the kind of thing I was looking at (e.g.:
> > > <http://hackedgadgets.com/2011/11/16/solar-pop-can-heater-system-build-r
> > > It's not clear to me what advantage one system would have over the other
> > > Daniele
> > With the shadecloth collector, heated air never comes in contact with
> > Hot surfaces radiate heat away. Black drink cans simply radiate this
> > The shade cloth collector allows free flow of air, so if mounted on a
> I'd need some kind of fan anyway, as this thing will be mounted on the
> What exactly is shade cloth? I have some dark blue blackout blind
> How does the air filter through the shade cloth? There's a version here:True in Britain, not true in saner countries.
> that uses aluminium mesh rather than cloth.
> > Finally the cloth collector is far lses work to make.
> Yes, certainly.
> Many designs seen to use nothing more than corrugated PVC rather than
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