http://www.homedistiller.org/forum/view ... =16&t=9250
Hi folks,
Please check with the prices where you are. I compared the price of 1 square meter of copper sheet to the price of copper tube that you would need to solder together to make a 1 square meter double walled piece with surprising results.
15 mm needs 67 x 1 meter lengths
22 mm needs 46 x 1meter lengths
28mm needs 36 x 1meter lengths
If you buy tube in 30 meter lots (or more) then 22mm tube and 0.9mm sheet work out the same price per area.
What set me off on this thought was the idea of winding a big coil, soldering it together and using it as a hollow wall for a still boiler. Would still need sheet metal for the bottom and top but you could use steam or hot water in the coil as your heat source.
OK there are lots of potential leaks, but decent soldering would sort that out. Is this a viable way of building a steam jacketed boiler or would you line it with the thinnest copper sheet you could find, just to be on the safe side?
The possibilities are just endless... i can't see another double boiler being built the traditional way again. How easy would it be to bend 3/4 copper to build a pot bottom out of it? the heat from soldering the copper to itself would be plenty enough to anneal it...
I gotta mull this over for a few days, but i'm excited...brains racing away at a million ' per sec....
Coiled copper bottom tigged to stainless sides, hooded with a stainless sheild to capture side heat...run by gas...filled with glycol....
IInvitedHimOverByTheWayPunkin