Vaillant ecoTEC plus 831 boiler is in and running the house heating and water.
Control of heating is only by radiator valves with the standard analogue central heating timer on the boiler.

I want to add a wireless thermostat for the house.
I also want to add two new heating zones - one to a radiator in an annexe, controlled by another wireless stat - the other to a digistat controlled h/x in the same building.

I think I know how to do this - but can anyone provide me with advice on how they would set up the plumbing and wiring to do this?

One particular question linked to this - these are the instructions for the boiler: http://www.vaillant.co.uk/stepone2/data/downloads/68/43/00/operation-and-install...

Does the jumper wire on terminal 3 and 4 needs removing and which terminal do you connect the switch live's to from 2 zone valves to fire the boiler on heat demand and turn it off when the stats are happy?

Thanks for your time
Stephen

I don't think you know how to do it, and that's fine provided you don't mess with it, unless you fancy a new boiler for Christmas  

First you need to post exactly what you want, for example, add another two zones, that makes three zones.

All the zones will require a 2port valve wires as an S plan, you may also need a by-pass valve on the zones for the pump over-run.

The wiring is quite simple  , although you may have problems with two or three wireless stat in the same building, hard wired would be 10 x better.

You'll need a central wiring box, with at least 10 terminals.

The grey in each MV is a permanent live.

T3 in the boiler is the com in the room stats, and switches the brown in the MVs.

T4 in the boiler is the switch live and connected to the orange in the MVs.

T5 in the boiler is the neutral.

Plus you'll need a L-N-E fused supply in the junction box.

See I told you it was easy.