Oh, it rarely gets that cold for that long down here. If they stop making incandescent bulbs, I can always use a heating pad or some such. And I doubt they'll ever completely eliminate that type of light: too ubiquitous. Plus-- Ebay!

The electrical problem you have is terrifying: the fire danger is bad. You should take one of the fused power strips and prominently display it at the employee entrance as a warning (leave the heater plugged into it for extra significance).