Thank you for your answers. The landlord eventually came and refilled the system with water. The external filling loop was at reasonable distance from the boiler (somewhere near the kitchen radiator on the other end of the room) so i would probably never thought this was its purpose. He just...
Hello,
So i have moved into this rented apartment that has an old heating system for both water and radiators. There is no problem with the water heating but i noticed a problem at the pressure gauge. At first it was 0.4 and after bleeding my radiators went straight to 0 so i stopped using...