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It is recommended to replace big brands of solar energy, such as Huangming, Linuo, etc., to ensure the normal use of hot water in winter. The service life is also long. It's better than replacing an electric faucet. Personal opinion.
The faucet you changed with the mixing function was originally mixed with water, and the cold water entered the solar pipe from the mixing valve, and you might be fine if you turned it to the side of the cool water, but it really didn't work to change the faucet.
It is estimated that the pipeline is too long, and there is cold water in the pipeline, and the cold water needs to be discharged before the hot water is discharged.
According to the different installation methods, the selection of accessories is also different. Find someone who understands water and show it to you.
Is there an electric heating, if not, it is basically useless in winter.
Just connect the hot water pipe to the hot water pipe of the faucet.