








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.
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If you want to install a new heat source, it is worth paying attention to DEFRO devices, a Polish manufacturer with many years of experience in the heating industry. Our specialists will help you choose the right boiler and its power, and distributors and installers will take care of the assembly and commissioning, and all you need to do is enjoy the warmth and comfort. The distribution network of our products is divided into regions for which managers and salespeople are responsible.