Hi I just bought a comfortbilt hp22i insert and going be installing it this wk. Its going on 1st floor home has 3 floors not counting basement. House is a 3 floorcolonial. My house is a single family 3600 sqft home with hydro hvac system and oil bill is huge so trying help it out. Just wondering what I can do to try get most out of pellet stove so I don't need as much oil . I know pellets ain't cheap so not sure whats the better heat source.