Isn't it just.
We have no central heating out here in the arctic wastes of Southern Brittany, but we have three wood burners, one in each of the main downstairs rooms (the heat flows up the stairs and warms the upper regions. We have our wood delivered and it's a mix of beech (one year old and naturally dried under shelter) and oak (two years old, one year out in the rain and one under shelter). This seems to be the norm out here in sticks apart from the peasants who'll burn any old shi'ite, but do tend to get it right. It's important to keep a stove running hot and not burn damp wood. There's nothing wrong with soft wood except that it burns very quickly and it'll also burn wet or damp. Birch is a great wood, but again, it will happily burn damp- kilned dried should be fine. We get a chimney sweep every two years (insurance says it should be every year) and last time he said there was very little to do - no tar and little soot because we'd used proper dry wood instead of trying to cut corners.
We're hot on eco, too. Very concerned, in fact.
I should add that it's important to have a proper chimney with a good updraft and a decent stove. If you're looking for a good one, I can recommend Jøtul. They have a vested interest in keeping warm in Norway.