Ok so I just got a Worcester Bosch 4000 boiler, It modulates, however their stat is junk and cant cope with metal walls, looses connection and is so slow I discarded, looked at tado, t6r honeywell, hive and nest none talk to boiler as wrong language of OT, the t6 r is tpi and boiler and rads set up for low temp run @ 50 deg c so should always condense, what are others thoughts on this if any?