High oil prices have many of us trying to save money on heating costs. One option is to use space heaters. They can add warmth and comfort to your home, as long as you use them safely. Space heaters can cause fires if you don’t use them properly. Danny Lipford, host of “Today’s Homeowner,” displays several types of electric space heaters, and offers safety tips, on The Early Show Wednesday. He explains to co-anchor Hannah Storm that there are two basic types of electric heaters: convection and radiant. Convection heaters provide warmth by blowing or pulling air over a heated surface. These heaters are designed to heat an entire room. Radiant heaters direct heat at an object. Convection heaters are either fan-assistant or fan-less. These heaters run an average of $15 to $100. Ceramic heaters are some of the newest convection heaters on the market. These heaters have ceramic plates and aluminum baffles. When electricity passes through the ceramic, it is heated. The heat is then absorbed by the aluminum and a fan blows the hot air into your room. Ceramic heaters are easily portable and give off a great deal of heat from a small box. These heaters tend to be ...