[Vwdiesel] Block heater electrical draw

[Mary Beth and Chris Geiser]

To all the smarter and better looking dudes:

	What amount of electrical current is needed to run the typical
VW block heater?  My Jetta requires the block heater to start below 30
degrees as I'm trying to make it through one more winter on a tired
engine... my question is if I could run the block heater off a spare
battery or different vehicle and my 300W invertor if I ever got stuck
too far from an outlet, or is that invertor too small?

Thanks,

Chris