wholesale, and retail distribution of its own heating oil, with attention to fuel characteristics such as odor, cloud point, and energy content. Eesti Diisel also offers related technical services, including installation, configuration, and maintenance of liquid fuel boiler houses and industrial combustion equipment. Its technicians perform regular servicing, repair of boiler equipment, and cleaning of fuel tanks between heating seasons. The company additionally conducts chemical and oil waste processing activities aimed at enabling reuse of materials and supporting environmental compliance within its operations.