Is the red button floor heating? We dont have bathtub here so.

Picture attached [here](https://ibb.co/dKjJHSh)
Since we dont have bathtub here,’i wonder whats this button used for ?
On pressed it says “oyuhari ho hajimemaas, ofuro no senn no … tukekara …. Akete kudasaii…”

by Run_the_show