C & M wrote:

I'm wanting to install a simple solar collector for heating air into my
shop, just as an assist - not full-out heating. Apologies in advance if
this isn't the right forum but couldn't find a NG that seems to fit. I
know that I saw a slew of these back in the 70's but I'll be hanged if I
can come up with one now. I was thinking of a flat, baffled collector
which would convect air from inside the shop, to the bottom chamber of the
panel while
the top chamber heated up and convected the warm air into the shop. It
would seem logical that the baffle plate should be sheetmetal for quicker
heat-up. The window is only 20" wide so I guess the width of the
collector is predetermined (or maybe I can make it wider and neck it down
to fit the
window - other funtional issues come to mind with that). The installation
was to angle the collector to match your latitude (+/-) and fit the top
with an extension appropriately angle to bring it into the shop, with
diverters
to prevent the heated air from re-entering the collector. So, what's the
consensus of opinion? No fair asking the wife.

Try www.builditsolar.com and click on projects. They have a few different
plans...

--
MattMika