The house I grew up in heated 100% with wood for the last 10 years we lived there. We had a Franklin, then moved the Franklin to the basement and got a Buck. When I went away to college, Mom made Dad hook the gas furnace back up! When I got out of school, my first house (very small) had a small cookstove. Don't know the brand, but I think it was supposed to be decorative. that first winter, I had a waterbed (heated) so I'm toasty warm, reach for a glass of water on the nightstand and it is solid ice! Two cats and a dog in bed with me UNDER the blanket. There is nothing worse than getting out of a warm bed to start a fire, then leave for work without getting to enjoy it!
My parent's new house has a fireplace, and they use it quite a bit, it kicks out some heat, but is not their primary heat source (Dad travels a lot and Mom did her time). Our house also has a fireplace, and it will make you sweat your eyeball out, but go into the next room and it's cold as ice. I love to have a fire going once in a while, but not as a primary heat source. Some people love it, some people hate it. I'm a hater. Usually if I want a fire, I'll go fire up the grill, or light the chimnea on the back deck and enjoy a cigar (only allowed outside).