Broken glass on the solar water heater
A broken glass on the solar water heater is a common problem that can occur due to various reasons, such as hail, severe weather conditions, or the system’s aging. It is important to address it immediately, as heat loss and reduced solar performance can lead to increased energy costs. The collector damage is also very likely. The cause for this article and photographic material is the breaking of the glass of one collector after intense hailstorm in spring 2023.
Why is immediate replacement of the broken glass important?
- Performance loss: The broken glass allows heat to escape, significantly reducing the efficiency of the solar collector.
- Acceleration of wear: Continuous exposure of the collector’s internal components to weather conditions accelerates their deterioration. This is significant because the collector’s interior and the titanium sheet can suffer damage.
- Risk of leakage: If the broken glass is not replaced immediately, there is a risk of water and moisture leaking inside the collector, resulting in rust and destruction of other components.
- Increased operating cost: The reduced efficiency of the solar collector leads to increased use of electricity for water heating, thus raising operating costs.
What should we do if the solar glass breaks?
- Safety first: Before any action, make sure you have turned off the solar water heater’s power and water supply. Also, removing broken glass can be dangerous. Wear thick gloves and use a vacuum broom. Do not try to pick up the pieces with your hands. Safety glass is designed to literally “shatter” into pieces. Do not proceed unless you ensure safe working conditions. Solar heaters are often installed in places with a fall risk. Working with heavy broken glass increases the accident risk. My advice is to have it done by a professional who has the necessary tools.
- Contact a specialized technician: Contact a specialized solar systems technician immediately. The technician can assess the extent of the damage and propose the appropriate solution.
- Temporary solution: If immediate repair is not possible, you can cover the broken glass with a plastic sheet or other material to prevent water and dust from entering the collector. However, this is only a temporary solution and should not be permanent. Below is a photo showing a temporary solution implemented: a double nylon sheet stretched with wooden battens at the edges. A permanent solution should be sought, but during this time, the solar system still worked despite the problem.
- Glass replacement: The technician will proceed to disassemble the old glass and install a new one compatible with your solar model. It is important to use high-quality spare parts to ensure system longevity. Safety glasses are special glass types often not produced by solar manufacturers themselves but sourced from other companies, which can make them hard to find. If you contact a specialist, they will have the solution.
Preventing damage to the solar glass
- Regular maintenance: Regular maintenance of the solar system by a specialized technician can detect potential issues early and prevent more serious damages.
- Protection from natural disasters: Install protective nets or other protection means to prevent damage from hail or other objects that might fall on the collector.
- Choose high-quality materials: Select a solar collector made from high-quality materials to withstand adverse weather conditions.
Conclusion
A broken glass on the solar water heater can cause significant problems and increase the system’s operating cost. However, with the immediate intervention of a specialized technician and replacement of the broken glass, you can restore your solar system to full functionality.
To avoid such problems, it is important to invest in the quality of your solar system and perform regular checks and maintenance. Of course, it can happen to any product as conditions are never the same.
If you encounter any problem with your solar water heater, do not hesitate to contact a specialized technician.
MSc in Environmental Education
Specialization in Educational Robotics and STEM
Specialization in E-learning and Educational Content Production
Certified Adult Educator
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