I drove my YJ for it's last 2 years w/o heat here in NJ but since I have it I am trying to use it. Actually it's the wife who shuts it down before I get warm. It wasn't a problem until we started to commute together to save gas. But I am looking at heated seat pads and seat covers for next winter. That may keep her quiet other that hating the Jeep. But after 33 years of marriage it's too late to change me.
Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.