Solar water heaters do not emit smoke under normal circumstances. They only emit smoke (steam) when boiling water.
Solar water heaters should be turned on two hours before sunrise or after sunset.
1. On a sunny day, when the water is filled for the first time or the water tank is empty for more than 15 minutes, the water cannot be refilled during the day, otherwise temperatures may rise. at 270°C will occur due to air drying without water. Vacuum glass. The pipe will burst if suddenly exposed to cold.
2. Since the air drying temperature is extremely high, if you fill the solar water at high temperature, the pipe will explode due to the large temperature difference. It is best to refill the water in the evening. or before sunrise in the morning. It is really necessary to fill the water penduring the day. When using water, the collector must be blocked for one hour before water arrives.