Quote:
Originally Posted by Andrei_ierdnA
I have a suggestion if you cannot get to the bottom of this dilemma:
* sell your large 1kW block heater and with that money buy a small block heater 125-250 W.
So instead of heating your coolant in 20 min and having a localized boiling point, you will have to plug into a timer and let it heat the coolant for several hours overnight. Same end result, same electricity cost, but with a lower and more gradual heating of the coolant and without any localized boiling.
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Just an fyi to the OP and anyone else curious. I have an OEM 400w heater in my car on a timer that turns on at midnight and off at 6:30. I park in an uninsulated and unheated garage and the car is between 85 and 100 degrees when i leave. Within 2 minutes of cranking and 1 mile down the road it will be about 150 to 160. If the temps drop to around 0°F, it only gets to around 140 in that time.