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Post by satamax on Nov 22, 2013 5:20:56 GMT -8
Hi everybody. Well, just thinking out loud. Thoses old boilers seem to be the perfect candidate for retrofiting a rocket in there. Plenty of French models look like this. They could be used instead of the barrel, for a better look, and they would add mass. Sort of steampunk looks. They are dismantlable. So somewhat easy to work on. I wonder what could be done to stop people using theses as real boilers? First idea which comes to mind, pouring lead into the pipes? Or concrete? May be clay slip of some kind? Well, if ever i bump onto one, i'll do it   |
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Post by wrekinwanderer on Dec 4, 2013 4:45:00 GMT -8
Hey Max,
Wow, that looks cool! What would I type into leboncoin to look out for one over here in France?
Mike
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Post by satamax on Dec 4, 2013 5:16:42 GMT -8
Chaudiere. Chaudiere fonte, chaudiere ancienne. ou à bois. www.leboncoin.fr/annonces/offres/provence_alpes_cote_d_azur/occasions/?f=a&sp=1&th=1&q=chaudiere+ancienne&it=1Look around you. I had one in the skip, and old "chapée" i couldn't lift it out. There's one problem. The fins on top inside. So small ones can't be retrofited with a batch rocket. May be a J. Tho, you close the back outlet. Remove the two doors, use one to fit the heat riser through, and the other one for the flue. Plug or weld all the oppenings, leaving a small 3mm hole for presure equilibrium. And you're done i think. |
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Post by wrekinwanderer on Dec 7, 2013 14:35:04 GMT -8
Hmmm, having looked at one Max, do you think there's any potential of using it as a rocket water heater?
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Post by satamax on Dec 7, 2013 23:00:29 GMT -8
Hmmm, having looked at one Max, do you think there's any potential of using it as a rocket water heater? Well, i would advise against it. You can always do it, they were meant for it. But, you have to be aware that you shouldn't do a closed system, because you can create soo much presure that it would explode, and explode badly. You will need a circulator, , which is electrical, and if it fails or there's a power outage, this turns to be real dangerous. My idea, originaly was tu use one to retrofit either a J tube or batch rocket in it. But you need a big one. There's another option. You remove the two doors, and lay the boiler on it's front, fitting the heat riser in one of the holes, making it airtight one way or another. Then make a cover for the other hole with a round ring to accomodate the flue pipe. Then you have a good 1.5m² of ISA, with, 200 or 300 kg of mass. You'd have to close the back port, which would then be on top. The trick would be to use a batch rocket, and fit this high enough on the heat riser, that you can have the flue hole at the front, above the P channel. I'm off to see if there's a sketchup model for an old boiler |
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Post by satamax on Dec 7, 2013 23:49:38 GMT -8
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Post by wrekinwanderer on Dec 10, 2013 14:33:45 GMT -8
Hey Max, Blimey, that's certainly one approach! So, is that for a little one, hmmm I wonder what a big one's like.... I'm just asking because there's one not a million miles away from me: www.leboncoin.fr/bricolage/574882320.htm?ca=4_sI don't know if I would fancy giving it a go though. For me, it get's less punky too on it's side. Why not a bench? He says, not knowing about cutting into cast iron... We used to have an old cast iron Rayburn in the yurt, seriously heavy chunk of iron to heave around, not sure the missis would like it suspended like that. Amazing though when it was up to temperature! Loving the heat coming off our chauffe-eau stuffed with fire bricks at the moment, but got the soon be rennovated barn to think of next! Oh, I do love projects.... Speaking of which, I'm messing about with our hot water system again at the moment. Surely the chaudiere is designed to heat water by solid fuel so would be designed to cope with the seriously hot output? And I'm a big fan of thermosyphon and open-vented ssystems... Mike Mike |
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Post by satamax on Dec 10, 2013 19:33:04 GMT -8
Mike, your little one could may be used. There's two things to look for inside. That looks like an old chapée or deville. If there is some kind of cast iron labirynth on top, where the exhaust is, you can't do a vertical retrofit. That makes it too low. IIrc, you need at least 70/75cm inside, to fit the heat riser. Well, you can always cut the bottom to transform it like a barrel. Oxy acetilene, cutter, plasmùa torch or angle grinder, it all works on cast iron. Tho, for plsama, it might be a smidge thick in places. You know the quick drawing is just to ilustrate for the idea. The boiler could be turned quater turn to the left or right, and lowered. The elbow cold be replaced by a staight stub of pipe, and lowered onto the bench, for example. Prety anything can be done, with anything. Tomorow, i start on the winter job (well, not looking good, there's nearly no snow) But when i have a smidge of time, i'll draw another idea of mine.
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