Re: Block Heater
I'm seeing the same thing you are finding.
If you think about it, 1500 Watts is about the same as a burner on an electric stove. Would you really want to leave that "on" under a pan of oil?
I've seem some higher Wattage "frost-plug" heaters. There, there is no fire hazard, and the circulation of the water would spread the heat around.