Ok, i have been running a harman p68 for 1 whole day. I have a new colonial house in western ma. My goal is to heat the downstairs only... approx 1400 sq ft. Not sure if this stove will only be a supplemental source to reduce my oil burner from running, or if i can get by with keeping my oil burner thermostat off completely. Obviously, i am interested in seeing if i can keep the oil thermostat off, so i shut it off and set the stove to average recommendations. It's only my first night, so my experiments have no conclusions yet (in progress). My question is this... I have a 2 zone heating/cooling system. In other words, the duct systems are independant of each other. One system in attic(for second floor) with it's own heating/cooling air handler, and one system in the basement for the first floor with it's own heating/cooling airhandler. Would it be beneficial to run just the "fan" on the first floor system to circulate the air throughout the first floor? Here are some facts....... The duct work in the basement is 100percent insulated and the whole basement is insulated (no heat source though). The basement does not get colder than 60 dg's in the dead of winter. I have the stove in the family room(corner of the house) pointing to the kitchen. The house has a very open downstairs floor plan. The room that has the stove has one of four "return" ducts going back into the system. My thinking is that the "heat" will eventually make it's way through the returns and eventually spread throughout the first floor ducts, hence evenly distributed throughout. Any thoughts will be appreciated.