Better to maintain temps in house or allow temp to drop when away from home and/or sleeping? I have two zones on each floor, fin tube baseboard, 1000gal pressurized storage, set point circ returning water to storage at 120*F. Circ is bumble bee, ecm motor with four speeds. We are not really into heating season yet but i turned two zones on the other night. 155* supply and pump running at lowest speed was returning water at 140*. We could say that the house loop is over pumped but its only a 007 and i am not changing it. So i am wondering if i maintain temp in the house is it better to have the system cycle more frequently for shorter periods of time? Or should i not worry about returning water back to storage thats not down to my set point? Also supply temp most of the time is 180 +\- 10*. And water does go through the oil burner just before hitting the close tee to go back to storage.