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24 VDC appliances?
"Larry W4CSC" wrote in message
... efficient. I know someone who has homemade panels hanging from the sunny side window sills to the ground below. When the sun shines on them, it superheats the air on the front of the panel. This air rises and enters the room through the window sill opening. The hot air rising sucks house air from the bottom side of the sill into the heat exchanger to replace that already heated. Before they went to flush toilets, the campground we used in Maine as a kid had 'solar holers' and solar showers. The solar holers were "restroom" outhouses - like a multiple stall restroom but no water - with south facing black-inside/clear-top vertical risers with the intake at the bottom and the exhaust well above the roof of the outhouse, which pulled fresh air through the outhouses and out the top. No stinky outhouse. Likewise, the hot water in the showers was a solar black-pipe covering on the bath house roof, faciing south. Summer in Maine has a *lot* of sunshine hours, so they never ran out of hot water unless it was raining... Marvelous thing, the sun.... L8R Skip -- "And then again, when you sit at the helm of your little ship on a clear night, and gaze at the countless stars overhead, and realize that you are quite alone on a great, wide sea, it is apt to occur to you that in the general scheme of things you are merely an insignificant speck on the surface of the ocean; and are not nearly so important or as self-sufficient as you thought you were. Which is an exceedingly wholesome thought, and one that may effect a permanent change in your deportment that will be greatly appreciated by your friends."- James S. Pitkin |
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