The basic requirement for installing a solar water heater is to ensure that the water heater receives sufficient sunlight. If you don't have this basic condition, don't think about it. If this condition is met, it can be installed. Generally speaking, when installing solar water heaters, factors such as solid installation, structural safety, wind protection, lightning protection and roof drainage should be considered.
Specific methods:
1. Pour the concrete piers directly onto the roof and insert large, long bolts onto the piers.
2. The location of the pier and abutment: The pier and abutment must be built on the load-bearing wall, and direct pouring on the ground is strictly prohibited. Because it is easy to overload, causing the floor to deform and leak.
3. The size of the pier and the size of the local wind load are determineds after anti-risk calculations. In order to increase stability, multiple households are advised to jointly construct a joint pier and abutment, and reserve drainage holes on the pier and abutment to ensure smooth drainage on the roof.
4. Lightning protection safety. Rooftop solar water heaters usually exceed the height of the roof parapet, so the originally designed roof lightning protection system is ineffective for solar water heaters. In buildings where solar water heaters are retrofitted, lightning protection measures should be considered.
5. When installing a solar water heater, the best orientation is due south, and its tilt angle is equal to the local latitude. If used only in summer, the tilt angle should be local latitude minus 10 degrees; if used in winter, the angle of inclination must be local latitude plus 10 degrees;