Sometimes as I read FR, I wrap myself in an electric blanket just to read posts. Spring is not that far away and (knock on wood) we haven't had any serious colds or respiratory problems at all this winter!
Good for you...space heaters are pretty efficient, Fred Meyer has them for $28.00 and they’re very good.
Here’s a pic of one at Amazon, not in stock:
http://www.amazon.com/Sunbeam-SFH8111-Oscillating-Heater-Control/dp/B002QUZGVK/ref=cm_cr_pr_pb_i