This study was aimed at investigating the effects of 0%, 20%, 40%, 60%, 80% and 100% load powdered Khaya ivorensis [heartwood] on proximate analysis, elemental analysis calorific value coal briquette results were compared with that blank samples. Ignition combustion properties determined using standard methods. The for pulverized showed moisture content (%) 6.8 12.3: ash 16.8 1.73: volatile mat...