Hi the cistern of my toilet has broken (a plastic lever which controls the infill has snapped) so that the cistern keeps filling with water. It's in my ensuite so it's so noisy thst the only thing I could think of doing was to turn water off. But now I'm worried that I've messed up my heating, and also I'm freezing so if my water is turned off does that mean I can't have heating on either? Or does it work independently? Be so grateful for your advice. TIA