This part fits

Viessmann WB1B 100-W COMBI 26KW
Viessmann WB1B 100-W COMBI 30KW
Viessmann WB1B 100-W COMBI 35KW
Viessmann WB1B 100-W SYSTEM 26KW
Viessmann WB1B 100-W SYSTEM 30KW
Viessmann WB1B 100-W SYSTEM 35KW
Viessmann WB1A OPEN VENT 13KW 7248320
Viessmann WB1A OPEN VENT 24KW 7248586
Viessmann WB1A OPEN VENT 18KW 7248587
Viessmann V100 WB1A COMBI 24
Viessmann V100 WB1A COMBI 24
Viessmann V100 WB1A COMBI 24
Viessmann V100 WB1A COMBI 24
Viessmann V100 WB1A COMBI 30
Viessmann V100 WB1A COMBI 30
Viessmann V100 WB1A COMBI 30
Viessmann V100 WB1A COMBI 30
Viessmann V100 WB1A SYSTEM 24 7179918
Viessmann V100 WB1A SYSTEM 24 7248588
Viessmann WB1B 100-W COMPACT 13KW
Viessmann WB1B 100-W COMPACT 16KW
Viessmann WB1B 100-W COMPACT 19KW
Viessmann WB1B 100-W COMPACT 26KW
Viessmann WB2B 200-W SYSTEM 45KW 7438087
Viessmann FS2B 222-F STORAGE COMBI 19KW
Viessmann FS2B 222-F STORAGE COMBI 26KW
Viessmann FS2B 222-F STORAGE COMBI 35KW
Viessmann WB2B 200-W COMBI 35KW 7194477
Viessmann WS3A STORAGE COMBI 26KW 717736
Viessmann WB2B 200-W SYSTEM 35KW 7194476
Viessmann WB2B 200-W SYSTEM 19KW
Viessmann WB2B 200-W SYSTEM 26KW
Viessmann WB2B 200-W SYSTEM 30KW
Viessmann WB2B 200-W COMBI 26KW
Viessmann WB2B 200-W COMBI 30KW