The one year I lived in Montana, I ice fished many weekdays on a local lake that frozen over ever year at least a foot and a half or more.
I would simply drive my car out onto the ice, next to a fishing hole and fish, when it was to cold to sit next to hole. I would fish from car window. Then jump out and land fish.
On nice days above 10f with low to no winds, I would build a fire on the ice, right next to hole. Seemed the fire would only melt a inch or two of ice! Fire was built right on the ice. And I could burn a whole trunk full of seasoned dry lodgepole in a good fishing day.