defro firebrick stone 25kw boilers boiler accessories air conditioning heating 1 nada-hidden The building entry point reliably

The building entry point reliably ensures thermal insulation and meets the requirements of the German Building Energy Act (GEG)

and the respective installation and operating instructions (please check the product offer)

and maintenance intervals at all times

or heat pump fail

when connecting

defro firebrick stone 25kw boilers boiler accessories air conditioning heating 1 nada-hidden The building entry point reliablyOriginal 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