Big or small, gas or electric, the space heater you choose needs to be safe above all else. Fortunately, most feature a wide range of accident-proof features. Accidental tip-over shutoff is one of the most important, as a space heater lying on its side or face can easily start a fire. Other features to look for are automatic overheat systems and power indicator lights so you’ll know at a glance whether the unit is on or off. Regardless of what space heater you use, picking the right location for it is a critical consideration. Whether your space heater is large or small, be sure it is placed on a hard, level surface with plenty of clearance between it and furniture, walls, and other objects.