alt.energy.homepower

nicksanspam@ wrote:
> I'm thinking about using a recent Taurus auto radiator or a Ford or GMC
> pickup radiator to heat water with hot sunspace air, but I'm concerned that
> a) it's hard to find specs for radiator performance, and b) a mechanic says
> an aluminum core radiator might crud up with corrosion in less than a year
> with oxygenated water and no antifreeze.
I'd strongly advise against an aluminum radiator. See how long
this stuff lasts in a closed car system.

You can usually find car radiator rebuild outfits that will use
nothing but a brass or similar alloy core - because they don't
want the angry returns. You can probably have them rebuild
something that is more suitable for your purposes, maybe a truck
radiator.

To avoid using corrosion inhibitor in the entire storage tank,
you could set up a water-water heat exchanger, basically two
coaxial pipes. You can get them with ribbed inner pipe for
better heat transfer. Or, you could run the radiator loop as a
coil of pipe in the storage tank.

Jon