Non-pressurized solar water heating systems are installed to reduce heat water expenses. An individual station is designed for each customer taking into account consumers number, needed amount of heat water, temperature and other factors.
These systems can be connected to existing water heating systems. As a result gas or electric boilers work only when needed. Switching between solar and gas/electric boiler is fully automatic.
In these systems the vacuum tubes are installed on the roof while the tank with the vast amount of hot water is in the boiler room inside the building. The water is self-driven to the consumption point. The system can heat up pools of any size and be used for partial heating in spring and autumn.
Applications: is good for big consumers of hot water like plants, food courts, hotels, sport centers and masions with pools
Pros: less investments needed in comparison with pressurized systems
Cons: the whole system stops when any of vacuum tubes is damaged