Abstract: An electrode boiler of the type in which each electrode is located in a steam generating compartment surrounded by a control compartment and the boiler load is regulated by transfer of water between these compartments. A manifold is mounted at the top of each steam generating compartment and is connected to a source of electrical energy. Water received by the manifold is formed into multi-jets that are directed downwardly in the steam generating compartment. The rate of steam generation is controlled, in part, by the height of water in the steam generating compartment. In one embodiment, the jets are directed inwardly to converge adjacent the center bottom of the chamber. In another embodiment, the jets are directed vertically downward and may be reformed at an intermediate point of their travel. Water is removed from the boiler and pumped to the manifolds. Normally this water is mixed with other water.

Abstract: A high temperature water (HTW) space heating system in which the direct source of HTW is an automatic electrode steam boiler having electrodes, adapted to be connected in an electrical distribution system. The electrodes are positioned in corresponding steam generating compartments surrounded by a control compartment. A corresponding water spout directs water toward the tip of each electrode. A regulating valve allows only a limited steam output, which is used for control purposes. Water is taken from the boiler and mixed with water from an outside source. A boiler water circulating group feeds the mixed water to the spouts with sufficient velocity for it to flow up the surface of the electrodes to the water level in the steam generating compartments. The system has a heated space circuit including a pump for circulating HTW.

Abstract: A jet-protected electrode tip for high voltage electrode boilers from which boiler water is taken, mixed with the boiler feedwater or other water of lower temperature taken from an outside source and pumped through circuits terminated by a nozzle located below and pointing upward towards the tip of each electrode. A boiler having this distinguishing feature is commonly referred to as a jet-flow electrode boiler. The water is discharged through the nozzle and ejected as a jet stream having sufficient velocity to prevent oscillation thereof about the electrode tip. The improvement comprises passing a portion of the jet stream as a continuous stream through an inlet passage leading to a central chamber in the electrode tip, thereby maintaining electrical contact between the jet and the electrode tip. The inlet passage is disposed on the central longitudinal axis of the electrode.