The Steel summary vase of the open system executed from the acid-resistant sheet metal. Equipped into the copper swimmer valved to the automatic supplement of the water sysstem of the installation supplied by the fire-place with the water jacket or the fire-place with the water exchanger of water. Additionally possesses comfortable to the assembly of the all dish the handle and brass assembly- nipples assuring the tightness of the connection of the syphon and decent. This summary vase with the float valve valved is a hydraulic guarantee of the fireplace with a water jacket. This is the affiliated reservoir to the network of pipelines whose as assignment is the part of water in the installation of the heating water whose the volume grows up in consequence of the temperature rise. It is necessary for this automatically to supplement the hydropenia in the open system of the fireplace, and if necessary to make possible the outflow of her excess