Hi there,
I currently have a setup in our ground floor (one large room) with three different radiators. Each radiator is automated by Bosch BTH-RA. Since they are all in the same room, I bought an additional Bosch BTH-RM. My thoughts had been that the BTH-RM will control all the radiators.
My problem now is that I don’t really know, how I can best integrate the room-thermostat. I have tried to create an automation, but the radiators do not change their temperature:
alias: auto_Heizung_EG
description: ‘’
trigger:
platform: state
entity_id:
climate.raumthermostat
condition: [ ]
action:
service: climate.set_temperature
data: {}
target:
device_id: 41506e81cf6884ecfb96a0e5412c702b
mode: single
I created this automation via the GUI. Do you have any tips or maybe my approach here is totaly wrong? Thanks very much in advance.
Ideally I want to group the radiator Thermostats so that I can control the temperature and also turn them on and off via the external wall thermostat. So if I change the temperature on the wall mounted thermostat all three radiator thermostats change the set temperature simultaneously.
Its probably doable by using zigbee groups to sync temperature on all devices. Didn’t tried so I don’t know from my experience.
But imho you have wrong approach on the matter. What you actually should do is using indoor temperature sensor for trv calibration because temp on trv will be higher than room temperature as is it close to the radiator.
You can use better thermostat integration and their ui for dashboard. Check hacs. Just set the temp you want in the room and leave all of them in manual mode. They will automatically adjust valve opening position to keep desired temperature. There is no need to play around with wall thermostat.
Just use automation to switch trv off when summer mode is on to preserve battery.
Smart trv are great for zone heating. You can have heating zones in the house but this is expensive and complicated to do as every zone must have its own heating pump and thermostat. So most people are have house heating in one zone. But with smart trv you can zone it in the way I described.
Thsnk you very much for your thoughts. I already am using thermostat cards on my dashboard.
I already linked the temperature reading from the Bosch RM to the TRVs so I already have the realistic room temperature. But the big difference is that I want to change the set temperature of the TRVs with the Bosch RM or turn them on or off.
BTH-RM was not fully implemented. It was missing the ‘hvac_action’ entity. That is now fixed with 1.53.3 . So you could trigger automations when a BTH-RM changes from/to heating or idle hvac_action state.