Block heater

I'm not nearly as familiar with this engine as many here are, so I have to ask is there a preferred location to install a block heater on this 3.0? ('91 Caravan). Winter is coming and having the assistance of a block heater here would be nice.

Obviously this isn't performance related but 3.0 nonetheless. If this is not the appropriate section to post this please forgive me.

I have a few blocks that have freeze plug heater setup. Have to remember to get out there. Still no home base computer so I don't forum enough.

The "easiest" block heater to install would be the one that goes inline with the lower radiator hose...