How many logs should be used at a time for best results.

Thank You for contacting Imperial Manufacturing Group. Sorry for the delay in answering. The amount of creosote created in a fireplace or woodstove will vary based on the installation and condition of the appliance, the type and dryness of wood used, and frequency of use. Less efficient appliances and less seasoned or greener woods will produce more creosote and may require more frequent cleaning. Once the flames have completely gone out, place the log directly on the hot embers. Do not use the CSL on an active fire with open flames. When using 2 CSL, do not put them onto hot embers. Placing two CSL logs on hot embers may cause the fire to burn too intensely . Thank You and have a great day.