[jtroutma]

My only problem with that argument Gmat with that link is that.... those are cars and engines running at temperatures that we never want to get even close to.

Our systems run at much lower temperatures and much closer to ambient than a car radiator system runs at. For a car cooling system, I agree. But I think that with our system we need to also take into account that we have much lower heat sources, lower efficency radiators, AND water temps much closer to ambient.

That is where I am running into a problem with that argument.