Open Source Ecology Heat Exchange Coil Winding, 3 Feb 2012

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From YouTube: Preheater 3

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I bind up and now it's going to start pulling through. Well, actually it didn't start falling through it's because we're too tight here, but that would once that gets around here and binds again we'll start pulling the tube through.

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And now we're just spending the tube. Let's see what the now it's going to start drawing.

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Ok, so now you've got your hair from been stopped.

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Take attention off.

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Okay, now this is going to be sloppy because we didn't.

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This is going to be sloppy so because we didn't tighten everything down, go on and.

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There you see what we have.

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What we get on the boiler for the wood burner on the dune buggy.

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haha So you gotta just basically take it in and out.

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Okay, so it's basically a multi-step process yep now you would clamp this down. Bring this around a long game. You would have a double hairpin yeah there are. You could put it back in like this uh-huh and find it again yep and then you'd have one coming back on itself.

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Yep. You can keep doing that in that situation. What you would want to use a short would like this, because it's going to be in your way. Every time you come around is going to hit this oh yeah, and is that why you did it the alternating ways, so it doesn't hit it? No, oh, we did it the alternating way, because that's what we wanted to do. What we did is we made hair pins that ran back and forth. We welded them together and then they, then we welded them down to the firebox.

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So the outside of the firebox, the firebox, is only made out of 8 inch.

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Plate cold roll, then we welded this. We welded half-inch.

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We weld in half-inch hair pins and then we welded the hair pins together and ran water through them, so we're pre heating, our water, because they're right next to the fire box, they're right on there, they're touching the wall of that fire box and they're also strengthening that fire box. Yep look, but we've had that fire box, so hot that it's still warm yep. We had that thing. We had the stainless steel, just glowing red hot cherry red inside that fire. Okay.

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So it's basically the procedure here, there's one type of for the one type of hair pin or you wanted. You could do a 90 come out to another 90 do another night and then you can make a square one and you can make a bunch of square square shaped tubes and stack them or overlap them or whatever you want to do long, as you know: geometry and radius dimensions and lengths and stuff like that, Google you can, you can build any size, shape, form of boilers, okay,.