Will fit: VIESSMANN VITODENS 100 WB1KA 26KW COMBI ERP BOILER. VIESSMANN VITODENS 100 WB1KA 30KW COMBI ERP BOILER. VIESSMANN VITODENS 100 WB1KA 35KW COMBI ERP BOILER. Products will not be covered if misused or not serviced as per maintenance instructions.
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