Unterer Ventilator 33 – 40 kW HR De Dietrich 7887195

The Lower fan 33-40 kW HR is engineered for heating appliances with power outputs between 33 and 40 kW. This fan handles the lower airflow requirements, ensuring adequate combustion air or exhaust ventilation. When the lower fan fails, it can lead to poor combustion or system shutdown. Replacing it with this dedicated fan helps restore efficient operation and prolongs the life of your equipment. It is a practical spare part for technicians and homeowners performing repairs on compatible boilers and burners.