Vermont Castings Defiant Encore, catalytic element removed. Burn about 3 cord a season (at $160 a cord, split), mostly sugar maple, ash, and birch. Heats our 2,000-sq.-foot house pretty well down to 20 or so. Oil hot-water kicks in after that and for back-up.
Big, open Heatilator fireplace for those nights when it's not too cold--hate to leave the flue open all night, after the fire's died back. Burn ash, cherry, apple, and birch in there.