Schamottstein Set Defro DS 20 & DS II 25 Ecovarm you benefit from lower operating

you benefit from lower operating costs without having to sacrifice comfort

Total length including screw connection 1000 mm

Mains frequency: 50 Hz

Insulation of the boreholes by plugs

Replacing an old system with the Wilo Star-Z NOVA is therefore extremely simple and time-efficient

Schamottstein Set Defro DS 20 & DS II 25 Ecovarm you benefit from lower operatingOriginal firebricks for Defro DS 20 and DS II 25 kW boilers optionally as individual units Primary stone, individual Secondary stone or as complete set With both stones. Optimal fit ideal for repair, replacement or maintenance. Highlights & Advantages Original Defro replacement firebrick high heat resistance and long service life Suitable for Defro DS 20 kW and DS II 25 kW boilers Individual purchase possible: Primary stone or secondary stone