DOMESTIC WATER HEATER Russian patent published in 2000 - IPC

FIELD: domestic electrical heating appliances. SUBSTANCE: water heater element is placed in bottom side part of heat-insulated housing and has emergency cut-off device and electronic programmer with additional temperature sensor 11. Cold water inlet pipe 3 incorporating check valve 4 is provided above heating element 8. Hot water outlet pipe 5 is installed in upper part of heat-insulated housing with automatic air evacuator 6 placed above this pipe. In addition, water heater may be provided with water treatment system 13 and automatic pump plant 12. EFFECT: improved operating reliability and safety of water heater. 3 cl, 1 dwg