said by Exodus: I did once. Had a brutal January and a home built in 1912 with 13 foot ceilings. $600 for the natural gas alone. It broke me.
Our house was built in 1913. Ceilings on the first floor are 10+ feet, 2nd floor they're not quite as high. Last month's gas bill was $118. That's about normal for winter here. I can see that last Jan my usage was slightly higher, but not much.
The gas company has nice analysis tools - tells me that for the last month, the average home paid $151/month.
We do have a reasonably new, high-efficient furnace and keep the thermostat no higher than 70 except on occasion will bump it to 72 for 1-2 cycles.