With temperatures dropping and below-freezing temperatures expected at least for the next few days, Indiana State Fire Marshal Jim Greeson is advising caution with space heaters and other forms of alternative heating and a review of smoke alarms. Space heaters should always be kept away from loose or flammable objects such as clothing, curtains, bedding, and furniture. There should be at least a three-foot perimeter around space heaters at all times. Avoid using candles or appliances, such as a stove or oven, to heat the home. Do not leave space heaters on in unoccupied rooms. In addition to safe heating, do not overload electrical outlets. Finally, working smoke alarms are important to have year round, but especially in the winter months when alternative heating sources, such as space heaters and fire places, are used. Space heaters account for one-third of home heating fires.