h a l f b a k e r yWe got your practicality ... right here.
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A durable rubber line comes out of the Hot Water Sleeping
Bag (see link) and leads to the campfire, where it changes
into a small metal boiler that is placed into the embers of
the
campfire with a return line (at the top of the boiler) that
turns back into tubing that leads back into the bag.
Tubing
lengths and boiler specs can be tweaked to ensure a steady
state at practically any desired temperature whilst sleeping
anywhere within, say, 30 feet of an active campfire.
Hot Water Sleeping Bag
Hot_20Water_20Sleeping_20Bag
by [treetop]. [daseva, Mar 08 2010]
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Annotation:
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So, pretty similar to the technology pictured in my link to the original Hot Water Sleeping Bag idea? |
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[-] For less weight, bulk and cost, you could simply get a thicker sleeping bag which would keep you however warm as you wanted to be... and without the risk of getting scalded. |
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It's stupidly impractical, and therefore perfectly halfbaked. I like it a lot + |
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[marked-for-deletion] it's a copy of the other one, come on. |
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It's different. The other one is no good, but this one is ok. |
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Far from it, flyingtoaster. The other one has no
continuous-flow heat engine. |
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[jurist], yes the technology is virtually the same.
However, in the hot tub version, the methods of
control lie in the heat of the fire, only. There is no
closed heating fluid, essentially, since the hot tub
water *is* the fluid. |
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In this device, you can open and close valves
between the boiler and the bag to adjust the
amount of steam that escapes the boiler and thus
control
the heat inside your blanket. There could be a
release valve to the surroundings right near the
bag, too. This would allow for user control next to
the bag, and would also steam the tent (or not if
you put the sparger outside the tent). |
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What a good idea ,I never would of it!!! |
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yeah, something an 11 year old could invent! |
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Shouldn't this be under product:device:torture and renamed "Waterbedding"? |
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