The winter season is officially upon us, that means its time to check your home from top to bottom. Fire officials warn you should have your heating system checked by a licensed professional. Most furnace manufacturers recommend annual inspections. To safeguard against carbon monoxide poisoning, you should also check chimneys, water heaters, and gas stoves. Also, you need to replace all batteries in carbon monoxide and smoke detectors. If you are using a space heater, be sure to keep clothes and other belongings away from the units. As for electrical wiring, be sure not to overload outlets with Christmas tree lights.