Will fit: VIESSEMAN VITODENS 100 WB1A COMBI 26KW BOILER. VIESSEMAN VITODENS 100 WB1A COMBI 30KW BOILER. VIESSEMAN VITODENS 100 WB1A COMBI 35KW BOILER. Products will not be covered if misused or not serviced as per maintenance instructions.
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