Really want to save some gas money you may have to check the followings: # r/ ?+ P1 r4 X1 o# E1. The thermostat settings. Set the temperature as low as you still feel ok. say 16 degree? & T& } X$ [' m! e. ?0 l' F2. Close the vents near the entrance door and garage door, vents in the bathrooms. 1 T1 s# n+ e8 K$ `/ X3. 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)