We choose the liquid for the heating system

Even at the stages of designing the heating system of the house, it is necessary to take into account the fact that not always such a liquid for a heating system, like water, ideally suits the weather conditions of your specific locality. In particular, this applies to residents of northern parts of Russia, where winter lasts for 5-6 months. In such latitudes, experts categorically do not recommend the use of ordinary water as a liquid for the heating system . Why? The fact is that with prolonged cooling of the boiler (and this requires only a few hours of time), when the frost is high, the system simply starts to freeze. As a result, the water at minus temperature will be converted to ice, and soon the heating system will show what is indicated in our first photo.

Why can not I use it?

From physics, we know that the volume of water in the solid state of aggregation (in other words, ice) is much larger than the volume of a simple liquid with a temperature of +10 to +90 degrees. Therefore, it simply tears the walls of the pipeline, thereby forming a large gap or hole. It is almost impossible to restore such a system. In order for it to be functional again, in such cases a complete replacement of the damaged pipeline section is performed.

Thus, water is not the most suitable liquid for a heating system. The experts' comments are especially emphasized by the fact that in the Russian climate the risk of freezing of the pipeline inside the heated room is substantially increased. But how then to be and what to pour into the system?

Antifreeze

The use of antifreeze is the most reasonable way out of this situation. Antifreeze, used in pipelines and communications systems, almost does not differ from that which is poured into the expansion tank of the car. This fluid for the heating system (Dixis as well) is of the non-freezing type and is specially designed for similar operating conditions. Depending on the quality characteristics, it can not lose its viscosity properties at temperatures from minus 40 to plus 115 degrees Celsius. At the same time, water can be in a liquid state only at 0 and 0, 0 degrees Celsius, while at the latter values it simply turns into steam. Therefore, roughly speaking, in the liquid state it is at a temperature from +10 to +90 ⁰ С.

Composition of antifreeze

This fluid for the heating system can have a different composition, which is determined by the presence of a particular additive. For example, the composition of antifreeze can include such agents as monoethylene glycol or propylene glycol. Both substances impart viscosity and thermal conductivity to the fluid . But in comparison with the properties of water, the characteristics of the antifreeze are several times greater than its qualities, and no matter what mixture was added to its composition. Also, remember that due to its main advantages (preservation of properties at -40 ... + 115 degrees Celsius) and due to its viscosity, this fluid for the heating system has a "habit" of leaking into all cracks and cracks. Therefore, before using the antifreeze, carefully check your system for leaks, otherwise nobody will save you from leaks.