@StanHD You are my absolute hero! Thanks for pointing that out to me!

This is what I ended up with, and it does exactly what I want. I'll expand from here, adding both speeds of the ventilation and adding CO2 measurements from the Netatmo modules. Happy! :D

Thanks again!

2017-01-27 15_44_09 ...

Hi guys,

I'm new to the forum and hope you don't mind me asking help for my non-functional blockly. Not entirely true, it does function, but not the way I would expect it to... and what else is new here? :D

Here's the blockly:

2017-01-27 14_22_21-Domoticz.png

It's all about the central ...