The water in the vacuum tube of the single-chamber solar water heater is basically in a non-circulating state, while the water in the three-chamber solar water heater is in a flowing state . Moreover, don't worry, there will be no harm to the human body if the water does not flow!
Recommend "Dr. Sun" solar energy and Sancang solar energy (no need for water level probes and solenoid valves). Heating and hot water usage rates are fast in rainy weather, as is after-sales service. The rate is also significantly reduced, saving time and energy. This model only takes 20-30 minutes to heat without sunlight, while a single bay solar water heater takes 2-3 hours
Scientifically! speaking: solar water heaters. Whether the vacuum tube is damaged depends mainly on whether there is water in the vacuum tube. If there is water, thetube will not explode. Without water, the temperature of other brand products can reach more than 150 degrees. (The temperature of Sangxia is above 200 degrees), so it is very easy to get water when air drying.
The solar water heater has a water level display when in use. Before using, read the precautions in the product instruction manual. As long as the water in the vacuum tube is not empty, some solar water heaters have automatic water filling function, don't worry.