Hi, two fold question pls. Got 10 Hive TRVs, apparently radiators with current non TRV valves need TRV valve before Hive TRV can be fitted. Stelrad radiators-how do I know which TRVs to have fitted before Hive’s? Small K1 radiator in hall, leads to stairs in 3 level house. Hallway always feeding but...
