Really want to save some gas money you may have to check the followings: 6 x0 m! b8 L' [
1. The thermostat settings. Set the temperature as low as you still feel ok. say 16 degree?9 J; o l4 ~* X5 I
2. Close the vents near the entrance door and garage door, vents in the bathrooms. 2 \* ^. C9 |, ?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)