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An additional coding resistor is required for active cooling operation
20 and 25kW boilers
optional internet and GSM modules
this ignition element sets new standards in energy efficiency
When the burner grate (burner bowl) wears out
membrane safety valve 1 2 x 3 4 nada-hidden An additional coding resistor isMembrane safety valve 1 2" x3 4" Pressure relief valve heating valve from Caleffi The diaphragm safety valve 1 2" x3 4" Caleffi's safety valve is a high quality safety valve specifically designed to reliably protect closed hot water systems from excessive pressure. This valve responds precisely to a set pressure of 6 bar, thus ensuring the safe operation of your heating or hot water system. Compliant with the requirements of TRD 702, DIN 4753 Part 1,
