Anyone who pulls out a space heater to help warm their home should keep a few safety tips in mind. First, be sure to plug the heater directly into the wall and not an extension cord. That could increase the potential risk of fire. Second, make sure to keep the heaters at least three feet away from things that are flammable, like rugs and curtains. Now is also a good idea to have a professional tune up your furnace so you can reduce the odds of getting carbon monoxide in your home.