A device that attaches to the engine block
of one's vehicle that when plugged into an electrical socket
with a plug
heats up the engine
and keeps the oil
warm. Used in any part of the world where the temperature
drops below freezing.
The block heater keeps the engine warm and allows it to easily start even at extremely cold temperatures. It is usually seen as an electrical cord
sticking out from under the hood
of a car in Canada
or the states that border Canada.
This device warms the engine, not the interior of the car.
Herb: It's gonna be cold tonight.
Bob: Better plug in your block heater or your car won't start tomorrow!