Do tankless water heaters emit an electric buzzing sound even while not in use?
Question:i already have a tank water heater and sometimes buzzes, which is one of the reasons i want to go tankless
Answers:
They'll only buzz if something is wrong with the temperature sensor.
Most brands that I have worked with do not. They basically turn themselves off when not being used. One thing to check before you switch over is that your electric service is big enough to handle the tankless water heater. Typically they use a large amount of electric and sometimes the electric panel needs to be upgraded. Just check the specs for the water heater.
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