Wow, Rich, that heater must be junk. I have an old kerosene heater that hasn't been used in awhile, but I remember going at least 2 years between changing wicks. It ran nearly 24/7 during the cold central NY winters, heating my tiny apartment. I guess they don't make 'em like used to! A small heater like that is no match for a garage, especially if the walls are uninsulated.
Its been a miserably cold winter here too in Delaware.
Do you have any in-ground figs? If so, what varieties survive the cold? I'm just getting started growing figs, literally my first cuttings are rooting and getting their first leaves. I got cuttings from an unknown in-ground tree in NJ, so I figure that will survive on the south side of the house if I can get it through its first few winters. Also have some Chicago Hardy cuttings started and some Celeste cuttings in the fridge.
Phil