1) Engine cooling system
Found on
https://www.crosswordclues.com/clue/block-heater
A block heater warms an engine to increase the chances that the engine will start as well as warm up the vehicle faster than it normally would in extremely cold weather. The most common type is an electric heating element in the cylinder block, connected through a power cord often routed through the vehicle`s grille. The block heater may replace ....
Found on
http://en.wikipedia.org/wiki/Block_heater
An electric heater installed into a freeze plug hole in an engine block that preheats engine coolant in order to help start a vehicle under extremely cold weather conditions.
Found on
http://www.edmunds.com/glossary/
an electrically operated immersion heater fitted either to enter the water hose or the water jacket surrounding the cylinder block of a motor to warm the coolant in cold weather.
Found on
https://www.infoplease.com/dictionary/block-heater
No exact match found.
