Once the vacuum tube of the solar water heater bursts, it cannot be repaired and cannot be replaced.
When replacing, pay attention to the length and diameter of the vacuum tube. It won't work if it's too long or too short.
Take an ordinary vacuum tube with a diameter of 58mm as an example: a length of 1.6 meters costs about 100 yuan, and a length of 1.8 meters costs about 120 yuan. (The price includes door-to-door labor charges. If you buy it from your home and install it yourself, it will be about 20-30 yuan cheaper, which is the market price in county towns and villages).
The main reasons leading to the bursting of the solar water heater vacuum tube are:
1. There are flaws in the quality of the vacuum tube itself;
2. The water supply time of the solar water heater is incorrect. Hit the water at midday and in the afternoon when the sun is strongestt
3. poorly assembled, resulting in significant internal stress;
4. The vacuum tube itself is getting old.