Does the solar water heating system work on cloudy days?

Does the solar water heating system work on cloudy days?

Yes, a solar water heater works on cloudy days as even under cloudy conditions there is usually some radiant heat available to heat water though this to a lesser extent compared to a sunny day. An optional, electrical back-up heater can also be provided in most solar water heaters so that it can be used to further heat this water to the required temperature.

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