no Dave-So , you do NOT want a radiator! whomever thought to put a water cooled device (radiator) in an ALL electrical system was smoking a little too much homegrown that day :) A Peltier is a thermalelectric device as small as the die of the processor , electrically powered and has the effect of a freezer.One side gets very hot! (goes to the heatsink/fan) and the other side sub zero temps. My bud uses a Peltier on his XP 2100 , his normal operating temp is -30c you can see some peltiers at www.3dcool.com duanemoody ,here in So. Cal. I run with my case off year round :)