Solar collectors with closed loop system

Closed collector

— closed loop systems require high-pressure operation (about 5-6 bar) and are designed for direct integration into the domestic hot water supply system. In this case, the indirect principle of operation is usually used for heating — the transfer of heat from the water in the collector to the water in the DHW system through a special heat exchanger.

Such devices are noticeably more complicated and expensive than open ones, both by themselves and in the installation. At the same time, they are more versatile and efficient; they can be used for both domestic hot water and heating. In addition, you can install the heater at any height — this moment does not affect the pressure in the system, unlike open loop systems.