Cool running as opposed to other similar pumps I suppose, rather vague I know. But, how hot do all these pumps actually get at the impeller? Surely they can't all transfer a mojority of that energy to the water or the aquariums they are intended to work with would be overly hot. Of course I ahve no way of testing the temp of the impeller of these pumps and don't have the time or inclination to do so. But you guys seem to enjoy this testing that's why I ask those questions here
As for the power bill, I can full appreciate that, I live in one of the highest cost ares in the country next o the worst in CA. Although, I can't imagine that a 140 watt pump would be that bad when I ahve tons of 100 watt light bulbs going every day, not to mention a 55o watt psu. Guess I'd get spanked hard for leaving he lights on at your house at $10/mnth
Sorry if I seem a pain the arse but, if the rads you're using, car rad and all are having such a hard time with the heat why is everyone so focused on pumps?