Read it here. After having some vacation I will add also automatic/scripted solution. Until then please behave and take into account that all comments have to be manually approved before they are shown.
It is now possible to read why I chose 1-wire sensors for temperature data collection and also how to connect them.
How to save energy and money if heating is already on? Still no action and no bash. Second theory part is available for reading here.
When to switch heating on or off? How to regulate it etc. Lots of reading about house balance temperature, degree-days, degree-hours. No action, no bash. Yet. First part is available for reading here.