YOU DON'T NEED TO DO ANYTHING ANY MORE, IT TAKES CARE OF EVERYTHING!
Before, this family had old radiator heads in their house, and it was impossible for them to choose precisely the temperature of each room.
Earlier, this family had old radiator controllers installed in their house, and it was impossible for them to precisely set the temperature in each room. Since they installed the thermostat controllers, they don't have to do anything. Discover why they can't live without it any more, in the video!