Non-freezing fluid for the heating system. Non-freezing fluid for home heating

Each heating system has its own coolant. The operation and maintenance of the system is largely dependent on the type of circulating fluid. Non-freezing liquid for the heating system can be selected as a heat carrier. Let us consider in more detail its fields of application, characteristics, as well as advantages and disadvantages.

Coolant selection

First of all, it is necessary to find out the freezing temperature of the coolant. Then find out about the toxicity and properties of all available coolants.

When choosing a liquid for the heating system, you need to remember that by filling in a different type of coolant, you take responsibility for the operation of the heating equipment.

Features of non-freezing fluid

In the case when non-freezing fluid is used for the heating system, its ductility must be taken into account. For this reason, all components, welds, threaded joints of the heating system must be impermeable.

It is important that the non-freezing fluid is propylene glycol based. Compared to ethylene glycol solution, it is less toxic.

Under the influence of low temperatures, antifreeze does not increase its volume, respectively, it is not able to destroy the system. After the temperature rises, a return to the liquid state of aggregation occurs.

Antifreeze is strictly forbidden to heat. Otherwise, the non-freezing fluid for the heating system will lose its original properties.

Before using antifreeze in the heating system, the system must first be flushed with a special solution.

Benefits

High-quality non-freezing fluid for the heating system has the following advantages:

1. Safety required for non-freezing solutions made on the basis of propylene glycol.
2. Due to the fact that the heating system uses a wide temperature regime, under any load, the coolant for radiators must retain its active properties.
3. Throughout the entire operational period, antifreeze must maintain the heating system in working condition.
4. The full functioning of the system as a whole throughout the entire life cycle depends on the quality of heating appliances and antifreeze.
5. Protects from deposits, scale and corrosion.
6. The liquid is not explosive and not combustible.
7. It does not interact with gaskets and gaskets of devices.
8. Provides high-quality functioning of the circulation pulser.
9. Non-freezing fluid for heating systems is used with special nozzles that prevent foaming of the coolant, the formation of scale on the inner surface of the heating elements. Also prevents the swelling or dissolution of the sealant, the formation of corrosion.
10. Antifreeze for heating appliances does not need to be drained from the system. This is due to the fact that all the functional parameters of units, equipment and pipelines retain their properties even at low air temperatures.
    

disadvantages

If this type of coolant is used in the heating system, then with a possible leakage into the air, vapors are released that are harmful to human health.

Non-freezing fluid for heating systems is characterized by aggressiveness to the designs of the communal network in question.

Due to the fact that antifreeze in comparison with water has a high viscosity (about 20%), this adds a hydraulic load to the mains pumps. Therefore, when purchasing pumping equipment, you should choose a model that has a margin of performance.

The use of antifreeze in the heating system

Filling a new mixture can only be done when the heating system is completely cleaned of the previous liquid, and also checked for the quality of sealing and integrity of all connections. If necessary, replace worn parts as well.

As soon as all the preparatory work is completed, you can proceed directly to the work - pouring antifreeze. The mixture is diluted with water and poured into the system so that the composition remains uniform.

Antifreeze for heating is a rather capricious composition that requires special conditions.

What are the rules for using a product such as anti-freezing fluid for a heating system? Instructions for use are as follows:

1. First you need to increase the power of the pumping equipment and increase the pressure of the system.
2. Remove all elements that contain zinc.
3. The initial start-up of the heating system must be carried out at minimum power values ​​with a gradual rise to normal.
4. Antifreeze is allowed to be used only in single-circuit heating systems, since some of the substances that make up its composition are poisons.
5. The most optimal medium for non-freezing liquid are gas-fired boilers. If we talk about electrical equipment, then in such systems very often serious troubles arise.
6. Failure to comply with the basic requirements can lead to breakdown of pumping equipment, clogging of filters, and a decrease in heat transfer rates.

The use of antifreeze

As mentioned above, non-freezing liquid for heating can be used as a heat carrier. An incomparable advantage of this fluid is its frost resistance. For this reason, antifreeze is used in the external piping system. Another favorable factor is the reduction of corrosion of radiators and pipelines, which favorably affects the heating system.

In this case, antifreeze must be selected depending on the temperatures affecting the pipelines and your budget.

Alcohol use

In fact, the use of alcohol in heating systems by manufacturers is strictly prohibited. However, not everyone pays attention to the fact of using alcohol as a heat carrier, without removing the equipment warranty. But this does not apply to the use of propylene glycol, bischofite solution and ethylene glycol.

This non-freezing liquid for heating a house has a significant drawback - strong evaporation.

When do you need to use antifreeze?

Due to the fact that antifreeze, unlike water, has a lower heat capacity, radiators with a higher power are required.

So that the non-freezing liquid for heating does not lose its chemical properties, it is used in cases where the structures are made of galvanized iron.

Antifreeze is not allowed to be used in open systems, since in this case its evaporation is possible.

Since this heat transfer agent is toxic due to its chemical and physical properties, it is not allowed to be used in double-circuit boilers, as water poisoning is possible.

Conclusion

Now you know what liquid to choose for heating the autonomous system. However, what to upload to the system is entirely up to the consumer to decide, since there is no single answer in this case. The choice will depend on the parameters of both the heating system and its elements, as well as on the qualities and properties of the selected antifreeze, therefore, when purchasing this or that product, it is advisable to consult a specialist.