Originally Posted by Xist
You use a block heater in Texas?
I use one in north central Oklahoma; it's nice turning the key and seeing the temp needle jump up. Moves slightly less the colder it is outside, but moves nonetheless.
I get into closed loop slightly faster (better economy/lower pollution) and I get the windshield cleared (and get cabin heat) quite a lot faster. It makes my drive to work more efficient, more comfortable, and potentially safer (the windows are easier to clear), and I don't have to get out to the car extra early to mess with it before heading to work.
Does it actually pay for the energy use in fuel savings? I have no idea, since I've not attempted to measure. But the comfort and convenience is worth it.