[Khledar]

I see what you're saying now BigBen, but is this due to the radiator design being maximized for other applications?

Like, would it be more benficial if a "Unit B" in a loop could change the temperature of the water from "Unit A" to a lower temperature before "Unit C" (Where A -> B ->C) Is this possible, or are the flow rates too high - or is it the design of the radiators.

I'm just curious if this can somehow be improved, but maybe this mythical "Unit B" wouldn't actually help - that's why I'm asking - If it could help it might be worth investigating further.