Come now Bill, you're not the
only one who "understands".
Quote:
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Originally Posted by unregistered
can't use a low pressure fan on a heater core, do better with a different rad
- does the graph not tell you that ?
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You can - depends on the core. Not optimally suited at all for a 12x12cm core with a 12cm fan - ala Black Ice or ThermoChill. Can get away quite acceptably with a large faced square, thin, and lowish FPI core. Problem is that such are either not that common in the USA, or at the least, have been overlooked. Still not optimal for the super-low pressure Papst 4412FGL's, but for the Panaflo L1A's, quite an acceptable compromise.
Can do better by optimally matching a well-designed core design to specific fan, but given that people don't usually have those sorts of resources, choosing a thin 15x15cm (or thereabouts) core, as opposed to a fat 12x12cm core, and matching it to a non-piss-weak low-noise fan (ala 38mm fans as opposed to 25mm wimpy's) is about the most one can do.