2008-02-14-0722Z


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Got an idea from one of the SPI natives for a simple passive water heater, just using polypropylene tubing; it's already black, just run it along a south fence, or eaves, or whatever will get the most sun, and into the cold-water entry port of your water heater. I'm thinking that there ought to be some way to make a feedback loop, too, to make sure that what's in the tank is always the hottest, but it would have to be done really carefully to avoid backflow into the mains.

Chuck and Diane told me they also once made beer out of prickly pear fruits, which sounds like something I'll want to try since my wine experiment didn't go so well.

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last updated 2013-01-10 21:09:47. served from tektonic