On Sun, 25 Jul 2004 14:47:23 +1200, "~misfit~"
<misfit61nz@yahoo-mung.co.nz> wrote:

Martin 53N 1W wrote:

~misfit~ wrote:

Martin 53N 1W wrote:

Next project is to recyle the generated heat to preheat for the home
hot water...

[...]

*The heat exchangers were six meters of 5/8th inch thin-wall
stainless steel tubing formed into a double coil (one inside the
other). The whole thing would fit into a liter jug easilly. I had
six of them and they are irreplaceable. I got them from a guy who
worked for a company designing heat [...]

OUCH!

Oooo the mistakes of the unknowing...!

Sad ay? If I wanted to buy something like those again or have them made up
it would cost me as much as a top-of-the-line CPU each.

Don't let that little hiccup invalid you out. You can do some pretty
good stuff on the kitchen table with a few spare parts and a soldering
iron and kit...

Yeah, these things were so elegant though. As you can tell, I'm still a
little irked that I no longer have them, even though it was five years ago
they were disposed of.

I'd like to experiment with a low pressure boiling water/freon 'heat
sink' cooler for a cpu, given a little time...

Sounds interesting.

A ground water heat sink should work too, it works for heat pumps. A
small well drilled about 50 or so feet down or even a slightly bigger
diameter one not as deep should keep the water fairly cool, just dip a
set of coils into it to let the heat disapate and off you go. You
could even use a straight pipe down and then back up if the hole were
deep enough, the 50 foot one should work for this. Of course the water
would need to cover alot of the pipe.