Quote:
I did the trick with a 100watt lightbulb to keep a pump from freezing. It always worked just fine till the lightbulb burned out 1 night. That was the end of my $800 pump!
Well, there always all kinds of failure modes. However, if you take the "belt & suspenders" approach, then having a light bulb and anti-freeze in the coolant, then you shouldn't have a problem.
Then, there's always block heater freeze plugs -- but I guess the electricity could go off all night.
In my case with my 55 Pat, I have anti-freeze mix mostly because it helps in the summertime due to it's superior heat transfer characteristics. Belt & Suspenders.
Craig
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