Renewable Energy Made Easy by David Craddock

Author:David Craddock
Language: eng
Format: epub
Publisher: Atlantic Publishing Group, Inc.
Published: 2008-06-15T00:00:00+00:00

There was an old couch that had been run over by one of the large dump plows, and the inside wood was the perfect size for the frame. I found a pane of glass and an old rubber doormat that made the perfect backing and front.

The glass was a real find, and it may be the only part of the panel that you need to purchase. Make sure your glass is big enough to fit over your collector and have enough room to attach it to the frame. The doormat was huge, so I had to cut it in half. There was a lot of nasty black goo, and a metal sheet in the middle. Remove the metal plate (or cut it in half as well) and leave the goo.

I built the frame around the collector, leaving enough backing to hold it all together. The frame is held on by building a similar frame on the back and driving large wood screws through the front frame, the backing, and into the back frame.

I added some foil to the backing. The reason for this is that, counter to what you would think, you do not want the backing to warm up. You only want the collector to absorb heat (it was so nice of the fridge company to paint it black for us). The foil will take any sun that was not absorbed by the collector on the first pass and bounce it back over the collector for another try at absorption. The glass cover will keep all the heat inside the panel for further absorption.

Light can pass through glass, but heat cannot.

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