Quote:
Originally posted by m3_arun
ok thanks.
what would be the ideal flow rate then in a sytem with a heatercore and cathar's block?
|
Higher flow rate is always better, so that's a bit of a loaded question.
The question may be more one of how high is practical before pump heat starts to overcome the benefits of the additional cooling.
This is of course totally dependent on your radiator. I personally would not get a magnetic impeller style pump that consumes more than 40W to avoid the pump heat factor thing. If you're getting an Iwaki then feel free to get beefier with the pump.
A 40W magnetic impeller pump style should buy you around 2.5-3m of pressure head height.
Testing with an Eheim 1250 (25W/2m head height) and a Pondmaster 4200 (90W/4m head height) I see absolutely no performance difference as the extra heat of the pondmaster starts to overwhelm even my large dual fan radiator. This is why I suggest that the "sweet spot" for magnetic impeller pumps may be around the 40W mark. Just a guess though.
Quote:
|
which might require a pump and a half to push 2.5GPM through 'White Water'
|
It requires about a 4.0m rated head pressure to push 2.5GPM through the White Water + radiator, given that the pump is capable of supplying 2.5gpm in the first place of course.
[Edit: Correction to the estimated required head height to push 2.5GPM through the block + radiator]