Just returned home after several weeks away......Turned on the Oil Furnace, kept primary circ running in Greenwood Furnace...turned thermostats down to 58 Deg, and locked the doors...Walked into a 60 Deg house, ran right over to the Greenwood, firebox was nice and warm because I left pump running through Greenwood, threw in a couple of med sized logs and one starter. One hour later loaded it up, never heard the oil kick on again...My oil tank took a good hit during the vacation, but it was well worth it....Happy New Year to all....