Rethink Your Life!
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The Work of Art and The Art of Work
Kiko Denzer on Art
[Cob] cob/earth oven also heating hot tub intake?tabitha and karl o'melay karl at omelay.com
Sat Jan 1 05:27:02 PST 2005
one of the fist criteria was to do more than one thing with the heat source. that precludes using the fire or the absence of fire to control the water temperature. a coil is generally understood to have little bendy parts http://dictionary.reference.com/search?q=coil to make up the spiral. if there is an industry specific definition of the word coil that i am not privy to--then please cut and paste it in your retort--a really large font could be used for this too. i can't imagine recommending more than the bare minimum of penetrations (say two) into the stove. they don't expand and contract at the same rate--i'm sure you already know that. if we are using "iron pipe" like you suggested--i've only been able to purchase it in straight lengths--that doesn't leave much surface area in the actual heat source. i thought this cob-list was about the exploration of knowledge & ideas from a living source. when participants get smug and pontificate the process of learning is lost. ideas, no matter how ridiculous they seem to you, are still ideas and should be able to be put out there without fear of getting a persons head chopped off. k-) On Dec 31, 2004, at 10:38 PM, KC Chandler wrote: "your hottub is a (very large) safety valve" is true unless the overheat mechanism isolates the "fire loop" to stop the hottub heating process. With all due respect... we're over-thinking it here. You plumb it like any water heater, pulling the cold water off the bottom, through the coil in the stove. Heat rises. Of course it will create its own syphon. It can't do anything else. iron pipe is a good solution for a hot tub but plumbing can be tricky since the fitting connections (t-tape, pipe dope ect) usually leak when exposed to extreme heat and especially open flame. The fittings don't go into the stove; only the coils do. Your fittings are outside of your heat source. Your problem won't be in overheating the hottub (let the fire go out) ...it's not likely that you can heat it faster than the water in the tub can cool, even if a small tub, even if it's covered. But, I'd be interested in seeing someone try.
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