I have basically the same scenario as you and live in Wisconsin. I am making a living room area in my basement and am getting a little help from a person who works full time in the heating/cooling field. He recommended to me that electric baseboard would be the best for my situation. He suggested maybe two baseboards that are thermostat controlled. I guess it all depends on how hot and how efficient you want it to run. He made it sound as if the amount of electricity would not be way out of line. Putting in a another forced air heating zone would be nice but much more costly. Good Luck whatever your decision.