naturzugkessel defro firewood plus 12 kw 8 kW bis 9 kW you benefit from clean and

you benefit from clean and safe fuel storage

high-quality product that meets even the most demanding requirements

please do not dilute

The circuit intended for the heat pump

Required chimney draft: 15 - 20 Pa

naturzugkessel defro firewood plus 12 kw 8 kW bis 9 kW you benefit from clean andProduct Overview & Application The Defro Firewood Plus 12 kW is a hand fed natural draft boiler for split logs, designed for hot water heating systems with a buffer tank. It is suitable for heating systems that use solid biomass in the form of natural split logs and where the system is professionally integrated into a closed heating system. Technology & Equipment The boiler body is constructed as a water carrying steel structure with multiple flue gas