On Tue, 23 Mar 2004 07:13:02 -0800, "Lloyd Sumpter"
wrote:
Is there a bypass that shunts some
of the coolant around the HW circuit? If so, how does ANY water go through the
HW circuit? Is there some sort of valve?
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Yes, the HW heater is on a parallel loop. In a car it's flow is
usually regulated by a thermostat as I understand it. The thermostat
opens and closes depending on temperature setting. Most, but not
all, of the coolant flow will take the path of least resistance, just
like a parallel electrical circuit.