The pipes must have inlet and outlet holes. This heating circuit is called closed.

[zihadhosenjm40]

Liquid
From the name it is clear that the main heat carrier in them is liquid. A water solar collector is made with your own hands according to the following scheme. Through a metal plate absorbing solar energy, heat is transferred through pipes attached to it to a tank with water or antifreeze or directly to the consumer.

Two pipes approach the plate. Cold water from the tank is supplied through one of them, and already heated liquid enters the tank through the second one.

When heated water is supplied directly to meet the user's needs, such a system is called open.

Unglazed ones are more often used to heat water in a pool, so assembling such solar thermal collectors with your own hands does not require purchasing expensive materials - rubber and plastic will do. Glazed ones have a higher efficiency, so they are able to heat a house and provide the consumer with hot water.

Air
Air devices are more economical than the above-mentioned kenya mobile database that use water as a heat carrier. Air does not freeze, does not leak, and does not boil like water. If a leak occurs in such a system, it does not cause so many problems, but it is quite difficult to determine where it occurred.

Self-manufacturing does not cost the consumer much. The solar panel, which is covered with glass, heats the air that is between it and the heat-insulating plate. Roughly speaking, this is a flat collector with space for air inside. Cold air enters inside and, under the influence of solar energy, warm air is supplied to the consumer.

A fan that is attached to the air duct or directly to the plate improves circulation and improves air exchange in the device. The fan requires electricity to operate, which is not very economical.

Such options are durable and reliable and easier to maintain than devices that use liquid as a heat carrier. This option is just right for maintaining the desired air temperature in a cellar or for heating a greenhouse with a solar collector.

What can you make a solar system from yourself?
First, you need to understand what operating principle a solar water heater uses. The internal structure of the unit contains the following components: