The Efficient Home Forum

I currently have an S plan heating system using a Honeywell SUNDIAL RF2 pack.
I will be adding a John Guest UFH system to the system so was wondering if i changed over the Evohome operating 11 rads with Evohome Thermostats and 3 zone UFH with John Guest programmable AURA 230V THERMOSTATs for each zone,
Can this all be done using only the Evohome wiring centre or is the JG one required too?

You can't use the JG stuff with evohome... The JG wiring centre would go completely and be replaced with HCC80R and T87RF... You do need to stay under 12 zones mind...

I could have rads ( all of them) as one zone though?

You could, but wouldn't get the benefit of multi zoning at different time and temperature points in each room...

OK, so basically i can utilise the 9 zones not used by the UFH

Indeed...