UK Plumber Forum

[awestaway]

Hello all, I'm a keen and competent diy'er in need of some help and advice, i have installed underfloor heating in our extension, i have laid the pipes, and fitted the manifold, now it gets more complicated I would like to create a 2 zone system in our house, one zone for UFH and one for the Rads. I understand that i will need two x two port valves, one for each system both controlled by a independent thermostat. Now this is where i am lost, our UFH Manifold is situated around 10 meters from the boiler, so my first question is where to install the valve ? i am guessing i should Tee of the flow by the boiler and insert both of the valves next to the boiler, but i have seen advice that says to install the 2 port valve next to the manifold, after this i am on to the electrics which are really really confusing, again i understand there will need to be two control boxes, one for each system, would that mean i need to run a cable from the UFH two port valve to the control module next to the manifold and then a second cable back to the boiler ? thats a lot of cable i place the two port valve next to the boiler. Very long mutlible question but i really would appreciate some help, this project has brought me close to tears !! Cyber pint to anyone that can help,

[Craig0787]

Hi, the position of the zone valve doesn't matter in relation to the manifold, its just easier if it's next to the manifold for wiring purposes as this is generally where your wiring centre is. Only thing you need to do with installing zone valves is also install a bypass.