Really want to save some gas money you may have to check the followings: 0 i7 v: b A6 D; d' _, r P1. The thermostat settings. Set the temperature as low as you still feel ok. say 16 degree? ( m& b% w9 w2 J ^2. Close the vents near the entrance door and garage door, vents in the bathrooms. # M: c$ Q/ A1 L
3. Check the on/off cycle of the furnace, and flame of the furnace to make sure the furnace burns efficiently . ( need a professional people to look after)