A 100% recycled material that is a quick and easy lighting alternative to firewood. Enviro-Fire logs can be used indoors or outdoors in fireplaces, wood stoves, firepits, chimenea, or campsites When compared to firewood, Enviro-Log Fire logs burn cleaner, emitting 30 percent fewer greenhouse gases, 80 percent less carbon monoxide, and 86 percent less creosote. Great for emergency preparedness due to their infinite shelf life when stored in a climate-controlled environment. Burns up to 2.5 hours and burns cleaner than wood with no melting, dripping, or sparking.