VIESSMANN VITODENS 100-W B1HA SYSTEM 30 35KW GRUPPO VENTOLA CALDAIA 7837255
100 WB1C 35kW Combi (Serial No. 7499429) 47-819-22 (7499429). 100 WB1C 35kW System (Serial No. 7499428) 41-819-29 (7499428). Fans : Fan coils and motors failing due to boiler overheating will not be covered under warranty.