I live in Arizona. Winters here are not cold enough for me to ever use my heater. THe highs are around 60is and lows around 40ish during winter months.

I live in an apartment. The apartmetns on either side of meand above me use their heat. THis helps to keep my paartment warm enough that I do not need to use my heat. In fact, I keep my AC on year round -- as turing it off and using neither heat or ac means my apartment gets up to around 85..

So no heater use for me....