I don't see how having a safe, new EPA stove would be any different in those terms than having an old crapped out possibly dangerous Vigilant stove. In either case, if you have the oil furnace in the house, you still have oil as your "primary heat source" with wood as a "supplemental" source. Heck, I have a hi eff propane furnace as my main heat source and my supplental 24X7 insert that keeps the primary off most of the time.