We have a pellet stove that has been running non-stop almost all winter. It takes about the same space as a wood stove. We use it along with our oil furnace. We have saved a lot on the cost of oil, the furnace doesn't kick on very often. My DH just got a half ton of pellets on Monday and I think he paid $75. Another thing to take into consideration is that the pellet stove feeder runs off of electric.
PP