Iím considering installing heating controls based around the eQ-3/Conrad/HouseTech/ELV system. I plan to use a boiler connect relay (FHT8W), room thermostats and actuators, plus a supervisory computer system based on FHEM with a CUL/CC1101 interface to the RF network.

Everything looks good if I use the FHT80B room thermostats, but now Iíve seen another model, called the 'HomeMatic wireless thermostat', Conrad part number 646310-89 (kit inc. actuator).

This model seems to offer enhanced capabilities over the previous ones, including more time periods for autonomous operation (up to 24 periods per day), and display of the actual/current temperature, rather than temperature setpoint (although previous models claimed to support display of actual, but apparently did not deliver this functionality).

Can anyone confirm whether this new model can be used with the system I've proposed, namely with the FHT8W boiler connect and with FHEM over a CUL interface? Does it display actual temp as promised?

Secondly, does anyone know whether the self-contained actuator/controller, described as "Radio energy-saver regulator", Conrad part number 616100-89 (or ELV Thermostat ETH comfort 200), can be controlled via FHEM/CUL? These seem like they might be suitable for rooms that don't justify their own separate thermostat, e.g. the en-suite associated with a guest room.

Thanks for any help...