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Post by urbanprep on Oct 14, 2013 13:31:20 GMT -7
First, sorry, I didn't get pictures.
While in Frisco, NC, two weeks ago I saw a jeep brand vehicle that had a passive hot water system attached to one side of it's roof rack. The jeep was from NJ, in case anyone sees it on the road.
The system was constructed of 4inch PVC pipe and was painted flat black. It looked to be an estimated 5-6 feet long. So the general construction was 4 right angle fittings at each corner, connected together in the front and back with a 12-18 inch piece of pipe. The long pipe of the system was in board and looked to be about 6 feet. The out board pipe was about 1 foot shorter because there was a clean out fitting in the front, with the screw cap facing up. I assume this is for filling the system. the short 12-18 inch piece in the rear had what looked like a grey PVC pipe sticking out at an angle in such a way that the rear swing door would still open, it had a standard valve on it.
The whole rig was zip-tied to the roof.
It looked to me that you could attach a hose to it for your hot water supply. I wouldn't want to use a shower head, because of the temperatures.
I didn't see a pressure relief valve, but there could have been one.
Thought it was cool, should have got the photo.
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Post by thywar on Oct 14, 2013 13:36:28 GMT -7
That sounds interesting! Wonder if it was for any particular thing or if it was really just for hot water (I know.. it could be that simple). Someone draw a diagram and post it if you can.. that would be pretty cool place to keep your shower water on a camping trip. Wonder how much water it would hold. I guess I don't understand the 6' piece in board.
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Post by urbanprep on Oct 16, 2013 18:30:11 GMT -7
i will try and gen up a diagram and my calculations for volume.
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Post by urbanprep on Oct 17, 2013 18:12:54 GMT -7
i will try and gen up a diagram and my calculations for volume. And here is the drawing (I Hope) All pipe is 4 inch: 1 5' piece 1 6' piece 2 12-18" pieces 4 elbows 1 clean out and 1 12" 1/2"diameter pipe with hose valve I estimate the capacity to be almost 12 gal, weighing in at about 98 pounds
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Post by urbanprep on Oct 28, 2013 17:33:53 GMT -7
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Post by Cwi555 on Oct 28, 2013 18:53:00 GMT -7
Each foot of pipe would be approximately 0.65 gallons @ 5.43 or so pounds per foot.
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Post by thywar on Oct 28, 2013 19:13:56 GMT -7
I still like idea. Good info
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Post by tjwilhelm on Oct 28, 2013 19:59:10 GMT -7
Me Likey! That there is a very interesting idea! Thanks for sharing!
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Post by geron on Oct 29, 2013 10:13:50 GMT -7
If I had 3-4 of those on top of my shop (one side faces S.)I could run hot water right into the house under pressure and keep my 50 gal tank full. What about pressure relief? Would that be necessary. If so what about a pressure cooker vent with the weight on it? Think I'll work on this one Maybe enclose and insulate?
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Post by hunter63 on Oct 29, 2013 16:35:34 GMT -7
If I had 3-4 of those on top of my shop (one side faces S.)I could run hot water right into the house under pressure and keep my 50 gal tank full. What about pressure relief? Would that be necessary. If so what about a pressure cooker vent with the weight on it? Think I'll work on this one Maybe enclose and insulate? I don't think you will get it hot enough for a pressure relief valve necessary, unless you are in Death Valley. Interesting.
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