Recent content by stewy66

No the plumber I am using is a friend of mine, he is gas safe with many years experience with installing boilers. But unfortunately, this is the first Viessmann boiler he has installed. Viessmann Technical support have now kindly answered my questions so far, so we will see how we get on...

Hi, Just had this boiler installed and need to fit UFH, I have got the following Viessmann parts:- valve 7338214 22mm conns 7207285 Actuator 7441998 But we are not sure how this works with the boiler as there are no installation instructions? 1. How does...