Natural Flame Smokeless Gel Cartridge Fireplace Log Set - Produces Real Fireplace Fire, Model# CFC 6030 Log fits nicely in most wood fireplaces providing a real fire without smoke Ventless, odorless and perfectly safe Can be used in broken wood fireplace Substitutes for electric logs but provides real fire, no light bulbs 8-pk. replacement cartridges Item# 172919 sold separately