Used lubricating oil is one of the liquid wastes which is produced by an industrial machine or private vehicle machine. Lubricating oil is a waste that is produced by machines in both large industrial and private vehicle engines. This research aims to examine the process of manufacture and the system of oil-fueled crucible stoves, and simulated the temperature at aluminium melting furnace by doing some form of design testing; selection of furnace material using carbon steel, brick, plate; furnace modeling which has three parts of crucible, fireproof stone and lids where the three parts have different sizes and uses of each, then set the simulation as what we aim to such as the temperature distribution where the air temperature reached 40°C heat source from combustion 1200°C. From the combustion, the velocity value obtained is 0.5 in/s, distribution at crucible is 749°C. In conclusion, the used oil smelting furnace can melt used aluminium metal, so that the used metal oil melting furnace can be used in the home industry to recycle used aluminium metal.