Water heater and method for operating a water heater
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Method for distributing total amount of current of local generator e.g. wind-power plant, involves executing consumption program, feed program and excess program, with which excess current amount is consumed by excess current consumer
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Setup and evaluation procedure for solar units
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Solar system for hot water preparation
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fastener
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Method for controlling charging of heat storage tank of thermal solar plant, involves detecting actual solar power of solar collectors at temporal distances by charging control, where heat storage tank is charged by solar collectors