You dont need a block heater, like they say once you start plugging a car in, you will need to plug it all the time... imo pain in the butt.

The car will warm up fast enough even in the coldest of winters, ive had zero problems starting my aveo in -30 degrees C.

I had the oem block heater on my 1.6 and i never used it...

A good battery and decent spark plugs are your friends!