NOVELTY - A whole timber firelog (1) comprises a log-shaped combustible body comprising timber and fuel additive(s) in a ratio of 30:70 to 70:30, a flat bottom-edge (4), and longitudinal slits extending centripetally with one longitudinal slit (5) having ramping ends (6). The fuel additives comprise alcohols, short chain hydrocarbons, long chain hydrocarbons, natural waxes, or tall oil pitch. The log-shaped combustible body has greater than or equal to 35 MJ/kg potential energy, and produces a crackling sound when burned.    USE - Useful in household fireplaces, outdoor fire pits, and chimneys.    ADVANTAGE - The inventive whole timber firelog produces a cracking sound when burned. It uses relatively inexpensive combustible materials. The firelog remains whole and structurally sound during manufacture, packaging, transport, and even during the burn period of the product. During burning the firelog remains complete and does not spontaneously collapse or fall apart upon prodding, avoiding the possible safety problems of fire flare-up leading to chimney fire risk and/or excessive heat output should the log spontaneously collapse or be poked during the burn period.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for:    (1) a method of manufacturing a whole timber firelog, comprising cutting a log to a length of less than two feet, carving longitudinal slits into the log, removing moisture from the log, pressure treating the log in a treatment chamber where the fuel additive(s) are absorbed into the log, removing the log from the treatment chamber, and draining excess fuel additives from the firelog;    (2) a combustible fuel additive-impregnated wood chip, comprising a wood chip that produces a crackling sound when burned and having greater than or equal to 35 MJ/kg potential energy, consisting of timber and an amount of fuel additives (greater than or equal to 30 wt.% of the wood chip); and    (3) a firelog package for containing and igniting a firelog, comprising a substantially sealed paper-like bag having a bottom portion that further comprises a fire-retardant portion.    DESCRIPTION OF DRAWING(S) - The figure is a perspective view of a firelog.    Firelog (1)    Flat bottom-edge (4)    Longitudinal slit (5)    Ramping ends (6)    Bottom slits (8)