Viessmann Vitopend 100-W WHO 24 kW Viessmann Vitopend 100-W WHE 24 kW Viessmann Vitopend 100-W WHE60 24 kW This part uses the following part numbers: Viessmann - 7817471 The part is compatible with the following boilers: Viessmann Vitodend 100-W WHO 24kw Viessmann Vitodend 100- W WHE 24kw Viessmann Vitodend 100-W WHE60 24kw
