defro firebrick stone 25kw boilers boiler accessories air conditioning heating 1 Viadrus the bypass valve opens automatically

the bypass valve opens automatically to maintain a constant pump head

Haushaltsgeräten und Warmwasserbereitung beitragen soll

The standard safety temperature limiter interrupts the power supply to the fan if the boiler temperature becomes too high

Inner diameter of storage tank: 510 mm

The Hydra GPS is an electronic and energy-efficient pump with high efficiency

defro firebrick stone 25kw boilers boiler accessories air conditioning heating 1 Viadrus the bypass valve opens automaticallyOriginal 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