I will do research on heat pumps as I have friends here in town who have them. This past Winter was the harshest since I moved here 8 years ago.
Most are pretty mild even with the snow, temps do not fall below 20 degrees.
I do have a wood burning fireplace if needed. This place used to have a wood stove - they took it with them when they moved - darn it.
Those really put out the heat.