Optima PLUS MAX boilers, designed for heating large-scale buildings, schools, workplaces, and more. The boiler’s heat exchanger features a vertical arrangement of flue gas channels and is made from certified boiler steel with a thickness of 6-8mm. The boilers are equipped with the K3P-MAX controller, which includes a flue gas sensor and smooth fan speed control, managing 2 pumps for heating and hot water. OPTIMA PLUS MAX boilers utilize a multipoint method of delivering air into the loaded fuel zone. Forcing air directly into the burning fuel zone improves operational efficiency and ensures uniform and long-lasting combustion while stabilizing the process simultaneously. Boilers designed for burning coal, coal and fines mixtures, as well as wood.