[Joe]

haha I love how they point out the oxidation on the copper components...

Hmm something tells me they never took at remedial classes in chemistry because Aluminum oxidizes as soon as its exposed to air or water, and unlike copper, Aluminum will corrode and flake away when oxidized where as Coppers oxide actually protects the underlying material from further damage.

This is the reason Copper is used in paint for ships hulls, the primary ingredient in the bronze that forms the props and sea water pluming and the pluming in most homes.

Also they mention in their spiffy pic how the 2 are joined. and its pretty much dead wrong. Copper radaitors use brazing as well as soldering to join the fins together... the SAME brazing process is used on the aluminum. The aluminum fins are not melted to the tubes as they show in the pic yet they claim in the text that they are brazed... which is how its done.

Oh well what do you expect? its just typical "our shit rocks, their shit sucks" propaganda.

Design has much more to do with heat transfer than material.