ELECTRODE WATER BOILER Russian patent published in 1995 - IPC

FIELD: heating of small houses, such as dwelling houses. SUBSTANCE: boiler has cylindrical casing with inlet and outlet pipe connections, cylindrical electrode made of copper-doped alloy and secured in casing bottom, dielectric shield whose length is to be not less than that of electrode, shield axial displacement drive. Casing is connected via ground bolt to neutral wire of supply mains and phase lead is connected to electrode. Space provided in upper part of casing is of height calculated from equation. Casing has detachable bottom made of insulating material and protective shell is mounted on external side of bottom. Moving shield down closes active surface of electrode thereby regulating water temperature in system. Hot water excess is displaced under boiler cover into special space determined by height h. EFFECT: improved design. 3 cl, 1 dwg