Is the water in the solar water heater hot when there is no sun?

Solar water heaters don't have to worry about the sun;

1. In the weather without the sun, the water in the water heater will not be heated, so naturally it will not be hot. But if the hot water has not been used up the day before, it depends on the heat preservation function of the water storage tank. The water temperature will be higher if the heat preservation is good. On the contrary, it is even lower. For example, Zhejiang is very cold in winter, but it is sunny, so it can be used in three or four hours, and the water temperature is fifty or sixty degrees, which is the heat preservation function of the water storage tank.

Considering the rainy weather, solar water heaters are generally equipped with electric auxiliary heating devices, which can be heated by electricity when there is no sun.

Brief introduction of solar water heater

Solar water heater is a device that converts solar light energy into heat energy and heats water from low temperature to high temperature to meet people's hot water use in life and production. Solar water heaters are divided into vacuum tube solar water heaters and flat plate solar water heaters according to their structural forms, with vacuum tube solar water heaters as the main one, accounting for 95% of the domestic market share. Vacuum tube household solar water heater consists of collector tube, water storage tank, bracket and other related parts. The conversion of solar energy into heat energy mainly depends on the vacuum collector tube, and the principle of hot water floating and cold water sinking is used to make the water produce microcirculation and reach the required hot water.