Abstract: An apparatus and method is provided for the generation of heat from the combustion of waste oil. The apparatus includes the waste oil burner and novel combustion chamber operative to generate heat from the combustion of waste oil, a storage tank for containing heat transferring fluid, an absorbtion type chilling unit, a heating unit, or both, and heat transfer fluid pumps, piping, valves, and a control system for transferring the heat transfer fluid, and the heat it contains from the combustion chamber to the storage tank and ultimately to the heating unit or chilling unit.