The great advantage I have recently enjoyed is with opening up the system for better flow and maximizing the HX size for the available space I now have the new MMI thermostat controlling the temperature, something unheard of when I started with electric FWC. I always had the larger sideplate fittings but my original HX was barely adequate. You'll notice I haven't offered the old HX to anyone on this forum. If it was marginal for me there was no reason to expect it to be different for anyone else. Let's not make my problem your problem.
As first installed with no thermostat and bypass fully closed (maximum cooling) I was running at 180° at cruising speed. Pushing her to WOT the temp would creep up beyond that. It worked, reached its own equilibrium but under no circumstances could it be considered controlled.
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Neil
1977 Catalina 30
San Pedro, California
prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others
Last edited by ndutton; 12-28-2018 at 10:52 PM.
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