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Old 01-06-2014, 08:23 PM   #11
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Re: Wood-Powered Hot Water

Trust a caffeine addict to see the coffee maker..lol
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Old 01-06-2014, 08:29 PM   #12
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Re: Wood-Powered Hot Water

Quote:
Originally Posted by bansil
Quote:
Originally Posted by Skip
It's thermosyphoning.
I see the concept, there is just no way that those 2 pc of tubing are different temperatures that close to the stove pipe to allow the siphon acting...I don't think (that is my disclaimer ) . . .
The heavier weight of colder water near the bottom of the tank would push itself out into the coil, displacing the warmed water in the coil up to the top of the tank. I think drain-back solar hot water systems work in a similar fashion.

HOWEVER, you will notice that the bottom of the tank attaches to the top of the coil, and the top of the tank attaches to the bottom of the coil. This means the thermosyphon effect within the coil is fighting the thermosyphon effect withing the tank. The tank would probably win, with more mass of water and probably a higher temperature differential from the top tube to the bottom tube. But I think the flow would be more efficient if the top of the coil went to the top of the tank, and the bottom of the coil went to the bottom of the tank. That's my opinion, and it is certainly worth at least the آ that you paid for it.
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Old 01-06-2014, 09:24 PM   #13
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Re: Wood-Powered Hot Water

Quote:
Originally Posted by bansil
Watson....you might be onto something
Good eyes there. Well done!
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Old 01-06-2014, 10:46 PM   #14
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Re: Wood-Powered Hot Water

Quote:
Originally Posted by roach711
I like to re-engineer a solution as much as the next guy, but it might work better if the water tank was set directly on the stove like a giant tea pot.

It is very stylishly done though.
Yea my friend did exactly that for the bathtub in his green house, and if you walk in the front door at the wrong time you could be covered in boiling water that spews out of the pressure release valve.

Quote:
Originally Posted by Redbear
Quote:
Originally Posted by bansil
Quote:
Originally Posted by Skip
It's thermosyphoning.
I see the concept, there is just no way that those 2 pc of tubing are different temperatures that close to the stove pipe to allow the siphon acting...I don't think (that is my disclaimer ) . . .
The heavier weight of colder water near the bottom of the tank would push itself out into the coil, displacing the warmed water in the coil up to the top of the tank. I think drain-back solar hot water systems work in a similar fashion.

HOWEVER, you will notice that the bottom of the tank attaches to the top of the coil, and the top of the tank attaches to the bottom of the coil. This means the thermosyphon effect within the coil is fighting the thermosyphon effect withing the tank. The tank would probably win, with more mass of water and probably a higher temperature differential from the top tube to the bottom tube. But I think the flow would be more efficient if the top of the coil went to the top of the tank, and the bottom of the coil went to the bottom of the tank. That's my opinion, and it is certainly worth at least the آ that you paid for it.
Good observation!
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Old 01-07-2014, 07:21 PM   #15
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Re: Wood-Powered Hot Water

Quote:
Originally Posted by Skip
Quote:
Originally Posted by roach711
I like to re-engineer a solution as much as the next guy, but it might work better if the water tank was set directly on the stove like a giant tea pot.

It is very stylishly done though.
Yea my friend did exactly that for the bathtub in his green house, and if you walk in the front door at the wrong time you could be covered in boiling water that spews out of the pressure release valve.
He aimed the pressure relief at the front door?
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Old 01-07-2014, 08:57 PM   #16
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Re: Wood-Powered Hot Water

Quote:
Originally Posted by roach711

He aimed the pressure relief at the front door?
Hahaha yeah ..that's what I thought too
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