Hi, One of the important parameters in a correctly functioning heating system is the heating return temperature. This information should be available as heating.sensors.temperature.return according to the API documentation. I tried: https://api.viessmann.com/iot/v1/equipment/installations/XXXXX/gateways/XXXXX/devices/0/features/heating.sensors.temperature.return and got 'statusCode': 404, 'errorType': 'FEATURE_NOT_FOUND' The heating system is a Vitodens 200 system. Any ideas? Best regards, Carsten
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