Multiple owners of household

We are two owners in our house. I want all the automations (heaters, fans and whatever to apply also to my girlfriend, but for some reason, they only apply to me, so when I leave the house, for example, the bathroom floor heater turns off automatically. The same goes for the regular heating oven in our living room. I am not able to list her as an "owner, only "user. Anyone knows how to fix this? Any rules regarding leaving the home should only apply when the last person leaves, but if someone’s home, I want everything to work as usual.

Thanks for inputs!