Hi All,

We are building a house with wet underfloor heating which goes back
to 2 control units, which have all the wiring completed, only leaving
2 wires from each unit going back to the boiler (volt free). the
boiler has now been installed (Worcester Greenstar 12/18) which I
could not find any volt free connections, I spoke with Worcester bosch
technical today and all they could tell me was that the boiler doesn`t
have the appropriate connections, but could not tell me how I could
resolve this problem.
Anyone shed any light???.