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Cathar · 12-07-2003, 10:14 PM

I use the 50Hz version of the MD-30RZ. It's rated as a 70W power draw.

The amount of heat that it adds to the water is not insignificant at all. As a rough guesstimate, around 40W of heat is added to the water, which percentage wise, is about the same as a submerged Eheim pump adds to the water.

By itself it pumps pretty much bang on 15LPM in free-flow mode. Pumping through two heater-cores in series sees over 14LPM still flowing.

With a Cascade (SS) in the loop as well, we're somewhat below the 11LPM mark, and with a moderately restrictive micro-channel GPU block in the loop, down to around the 9.5LPM mark.

For the 60Hz version of the MD-30RZT, I'd estimate >50W of heat being added to the water. I'd also being expecting around 10% higher flow rates than the 50Hz model on average.

12-07-2003, 10:14 PM	#2
Cathar Thermophile Join Date: Sep 2002 Location: Melbourne, Australia Posts: 2,538	I use the 50Hz version of the MD-30RZ. It's rated as a 70W power draw. The amount of heat that it adds to the water is not insignificant at all. As a rough guesstimate, around 40W of heat is added to the water, which percentage wise, is about the same as a submerged Eheim pump adds to the water. By itself it pumps pretty much bang on 15LPM in free-flow mode. Pumping through two heater-cores in series sees over 14LPM still flowing. With a Cascade (SS) in the loop as well, we're somewhat below the 11LPM mark, and with a moderately restrictive micro-channel GPU block in the loop, down to around the 9.5LPM mark. For the 60Hz version of the MD-30RZT, I'd estimate >50W of heat being added to the water. I'd also being expecting around 10% higher flow rates than the 50Hz model on average.