Comment Re:Themostat (Score 1) 139
Try looking for the Conrad or ELV FHT80BTF. It's a motorised actuator that replaces the TRV head and is radio-controlled by the programmable thermostat on the wall. There's a window sensor too.
I have this in all the rooms in the house and couple them with the FTH8W boiler controller to switch on the gas boiler when any room calls for heat. I also bought a CUL USB transceiver and have software called FHEM installed on a Raspberry Pi to control the system (and provide graphs).
My plumber installed a bypass in the hot press so all radiators can have TRVs and be controlled by the system.
