Re: Magnetic Block Warmers

Posted by RZ(WA) on January 19, 2005 at 12:43:51 from (12.144.139.184):

In Reply to: Magnetic Block Warmers posted by AGR538 on January 19, 2005 at 06:41:32:

I had a lady up the road ask me the other day about a magnetic block heater cooking the oil and perhaps doing other harm. Seems someone where she worked said these heaters would do that sort of thing if the heater wes left on for a long period of time. I had said that I just couldn't see anything like that happening. What with the amount of metal around the pan, the tractor acting like a large heat-sink and with the amount of oil in the pan, and that these heaters couldn't provide enough heat to damage much of anything. I suppose it would be possible if the heater shorted out somehow. But if it did develope a short it would trip the circuit breaker or melt the wiring, short out and then trip the breaker. I pretty much ended by saying that leaving it plugged in and heating for a long period of time will only waste electricity.
I don't know for absolute certain since I've had freeze plug heaters put in all my engines and have kept a magnetic block heater as backup and for those tractors I have not been able to find a freeze plug type to fit.

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