The heating medium for the heating system of a country house: Selection Criteria

The harsh climate of our country requires every owner of a country house to think about how to keep warm during the cold season. Construction of an effective and economical system - not an easy task. However, if you choose the right heat transfer fluid for a country house heating system and take into account all the recommendations made, the results can exceed all expectations. Consider what a coolant and what to pay attention in the selection process in the first place.

The heating medium for the heating system of a country house: what is it?

Coolant in the heating system referred to as the liquid which transfers heat from the source to the radiators, that is the boiler. Usually used for this purpose the water, as well as special antifreeze (liquid that can not respond even to very low temperatures, and do not freeze).

To buy heating medium for heating which will be ideally suited to the parameters of your home, you need to pay attention to the following criteria:

• security. The heating system, like any other, can be periodically arise faults and leaks. coolant security will be of great importance in this case, as the person who removes the damage, it is necessary to contact with the liquid. And for the hosts unnecessary risks to anything;
• it is equally important that the heating medium was safe for the heating system, as any of its failure entails substantial financial costs;
• effectiveness - another criterion that defines the coolant. Some liquid cope with the heat transfer is better, and some worse. And it is necessary to pay attention in the selection process;
• duration of service life may be different, and it is desirable to select such a liquid that will last long enough.

If we talk about what kind of liquid for heating systems suitable according to these criteria, no doubt, the best option may be called water. Its heat capacity is sufficient, and no threat to the pipe or the person she is. But this solution has one serious drawback - it is susceptible to frost.

Therefore, before filling it with water to the heating system, it should be understood that in case of freezing it expands and simply break pipes and radiators. That is why the use of antifreeze for heating the house is considered a must. Under the influence of low-temperature fluidity of the fluid loses some, but does not harm the equipment.

So that by the choice of the coolant should be approached with great responsibility. The use of plain water is allowed, but only if you are able to provide constant monitoring of the system and to monitor its performance. If we are on the regeneration of a country house, which periodically unattended and the system heating for some time can be switched off, then adding antifreeze can be considered compulsory. In this case, it is better to buy a propylene glycol coolant.

Useful advice!In deciding how to fill the heating system, you should pay attention also to the power outage risks. If the house is located in a region where such off - the norm, then use a special antifreeze is also a must.

What better use of coolant in the heating system: the use of water features

Speaking of water as a fluid used to transfer heat from the source to the radiators, this embodiment may be called with certainty ideal. Its heat capacity and fluidity are extremely high, so that the heat can be delivered to the radiator in the required amount without any problems.

Many people wonder, what kind of water is best to fill the heating system. In this case, the answer is simple - for closed heating systems suitable ordinary water from the tap. Of course, it can hardly be called an ideal composition, and anyway it contains salt, and a certain amount of solids that can deposit on the equipment. However, this process will occur only once, and considering the fact that ordinary water can circulate for years regularly on the heating system and does not require replacement, the harm will be caused to a minor. Simply put, the amount of precipitation that will appear in the system simply can not somehow affect her work.

Closer to the choice need water for closed type systems since during system operation is a partial evaporation of liquid and water have to be periodically refilled. As a result, the concentration of salts and impurities will continuously increase, which respectively lead to greater accumulation of precipitation on the inner surface of the equipment. Therefore, for systems in which the expansion tank is provided, it is necessary to use distilled or purified water.

Of course, constantly topped up with distilled water in the system - a rather expensive pleasure, and not always it is at hand in the required amount. Therefore, as an alternative to not use filtered water.

Important!The most negative impact on the heating system have a hardness salts, as well as the iron contained in water. Not helpful and all sorts of mechanical impurities. Therefore, in the cleaning process should pay particular attention to this.

What you need to do before filling it with water to the heating system

To prepare the water-to-use and can be on their own. It will take some time, but it will save you from having to spend money to buy distilled water. Here are some simple guidelines:

• first of all, the amount of water you need to type in the appropriate volume, and capacity to defend. This will allow most of the iron settle to the bottom;
• after the water settle, it is necessary to carefully pour into another container and boil, uncovered. Thus, the salts are eliminated magnesium and potassium.

Water, prepared with these simple tips can already be considered sufficiently prepared for use. Of course, each time to carry out these procedures is quite tedious, so you can top up the already distilled or filtered water, but the initial priming, this embodiment is excellent It fits.

What are anti-freeze, which one is better to choose the characteristics of their use

Talking about the use of antifreeze for heating systems, you need to understand what it is, and how to choose antifreeze. This aqueous solutions of polyols, although not so long ago appeared a new type of anti-freeze, as the basis for which the glycerin was used. In order to understand, in favor of a better solution than just to make a choice, a closer look at the characteristics and properties of each of them.

Varieties of antifreeze to the heating system of a country house

To date, the production of antifreeze based on the use of two substances: propylene glycol and ethylene glycol. The first option is more expensive, but it is perfectly safe, even if you consume it inside. But he has one serious drawback - it can lose fluidity at low temperatures, which did not respond to ethylene.

Important! Ethylene glycol is extremely toxic and can cause serious poisoning, even his pair, not to mention the direct contact.

It is interesting that, despite all the dangers of the use of ethylene glycol, it is much more likely to prefer that, most likely due to its lower cost.

Antifreezes made based on ethylene glycol characterized by the fact that they are chemically active and exhibit increased flowability and capable foam. If foaming can still fight with the help of special additives, it's increased turnover rate adjustment can not be. And considering the fact that the substance is also toxic, it significantly increases the risks of the use of such anti-freeze.

Summarizing, we can say that if it is possible to use propylene glycol coolant heating system, it needs to use. Because the ethylene required to leaks wherever possible. And its toxic fumes can cause severe poisoning and subsequent health problems.

Important!If the heat transfer fluid based on propylene glycol is completely safe, in the process of working with ethylene glycol, necessarily You need to use personal protective equipment: respirator, goggles and clothing that can be thrown away. This is necessary because in contact with tissue, the substance is toxic and can not be completely removed from the surface.

What is the coolant for heating systems to buy: most popular brands on the market

Before you buy a heat transfer medium, it is necessary to get acquainted with the available offers on the market and compare their characteristics. Consider some of the most popular options and their properties.

Popular coolants and their properties:

Title	Active substance	Operating Temperature / crystallization / Decomposition, ° C	Operating life, years	Is it possible to be diluted with water	Price, rub. / 10 kg
Heat carrier Dixis 65	monoetileglikol	65-95/-66/111	10	Yes	850
Heating medium Warm Home Eco	propylene glycol	30-106/-30/170	5	Yes	1050
Heat carrier Termagent Eco 30	ethylene glycol	20-90/30/170	10	no	650
Heat carrier Teplocom	glycerol	30-105/-/-	8	no	780
Heat carrier PRIMOCLIMA ANTIFROST	propylene glycol	30-106/-30/120	5	Yes	762

Useful advice! Another very popular option ─ coolant Warm House 65. This option can be considered universal, since its characteristics and safety are consistent with all the requirements.

Another important disadvantage of heat transfer made on the basis of ethylene glycol - they are extremely poorly responsive to overheating, which, moreover, occurs at fairly low temperatures. Ie at + 70 ° C, there is a huge amount of sediment that is then deposited on the surface of the heaters. Such deposits adversely affect heat transfer, which again leads to overheating. This is the reason for the solid fuel boilers never use antifreeze.

Important!Heat transfer medium based on ethylene glycol can have a devastating effect on the pipe, particularly if they are galvanized. Therefore, acquiring the substance, it is worth thinking about the safety of the system elements.

As for propylene glycol, its chemical composition completely neutral, but because coolants made based on it, not only react with other substances. Overheating occurs under the influence of much higher temperatures, and its consequences are not so unpleasant.

Related article:

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Antifreeze based on glycerol appeared only at the end of the last century. According to the characteristics, it is somewhere between the first two options. There is no danger it poses to human health, but as regards its impact on the gasket, here there are some difficulties. Overheating glycerol coolants react badly.

Filling the heating system antifreeze: features use

Think about what kind of coolant is used, it is necessary at the stage of system design. This is due to the fact that heating nezamerzayki have a low heat capacity. If the system was originally designed for the water, the Gulf of antifreeze in it, you may encounter the following problems:

• received power will not be enough and as a result - in the house will be cold. The reason is the same low thermal conductivity. To solve this problem is possible by setting the circulation causes great power, and thereby increasing the velocity of the coolant in the system. But if the act is according to the rules, it would be nice and to increase the number of sections in the radiator;
• before you pour the fluid into a closed heating system, you need to make sure that the volume of the expansion tank will be enough. This is due to the fact that water and anti-freeze are expanded in different ways, and if it can be enough for the anti-freeze is not for a certain amount of water. As a simple solution to the problem, you can simply install additional capacity;

• before using antifreeze based on ethylene glycol or glycerol, it is necessary to take care of the presence of the respective pads. The thing is that the chemically active substances easily destroy ordinary rubber, which will lead to a leak. Therefore, before pouring antifreeze all gaskets must necessarily be replaced with Teflon or paronitovye.

Thus, once again, we have to make sure that the best heat transfer fluid - water. It costs much cheaper, and all its characteristics meet the requirements. But in cases where the use ordinary water is not possible, antifreeze still help out.

Important! Under no circumstances should one try to fill the heating system automobile antifreeze. For this purpose, you can use only special, heating fluid.

As for the choice, the use of propylene glycol coolant at times preferable. For greater convenience, the antifreeze is added dyes that allow customers easier to distinguish between compositions. Ethylene is usually painted in red or pink, and green propylene. If the antifreeze is blue, it means that it is made on the basis of glycerol. In use, the dye can fade or even disappear under the influence of temperature, but on the quality of the coolant is not affected.

Filling the heating system coolant own hands: rules and recommendations

The question of how to pour the antifreeze in an open heating system, there is not so often. This can be done as simply using an expansion tank. So that the coolant is necessary to fill the tank, and under the influence of gravity, he himself will be spread throughout the system. It is important that in the process of pouring the coolant, all the air vents are open.

Somewhat more complicated to work with closed-type systems. For them, there are different methods of charging. So, pour coolant can be a gravity without using any technique. Sometimes this is done using a small submersible coated or specially designed for this purpose, whereby the design of the system pressure test. Consider each of the embodiments, the advantages, disadvantages, and especially:

1. Flooding by gravity flow. On the one hand, this is an easy way ─ since it does not require the purchase and use of any special equipment. But at the same time, this process will take time, as the "squeeze" the air out of the system will have a long time. And the desired pressure will be recruited over a long period. The first step is to find the highest point of the system and remove the existing gazootvodchik there. During filling, the lowest point, which is located in the coolant shutter valve must be opened. As soon as it will leak, it would mean that the system is filled.
2. Flooding using a submersible pump involves the use of a low-power device such as the Kid. It must be connected to the lowest point in the system (but not to the point of discharge). The liquid is poured into the container and lowered into it one end of the pump. It is important that in the process the pump will not air "swallowed".
3. Flooding using a pump for pressure testing is performed substantially in the same way as in the previous case. Here only it uses a special hand-applied, which allows you to upload the liquid in the system.

Useful advice!Pump for pressure testing is not necessary to acquire. It is quite possible to rent in specializing in this company, which usually takes more and selling equipment for heating and water supply.

Rules of commercial accounting of thermal energy of the coolant: what is it?

Today, almost everything about the individual building and construction of residential buildings, is regulated by law. Is no exception and this case, as there are special rules for accounting of heat energy and coolant, which are formulated in the RF Government Decree of November 18, 2013 of the year.

In general, the technique of the commercial accounting of heat energy of the coolant - an interesting question, although quite difficult for the average user. But if you want to understand the manner in which certain calculations and what constitutes the rules applicable in the future, you can, read the documentation on the subject.

Important!As a basis for calculation, the formula used. Flow rate is calculated based on what the natural heat loss will be in a particular indoors, and what should be the temperature of the radiator to keep the room comfortable temperature.

Summing up, it is worth noting that buying coolant for the heating system of a country house can be based on various criteria and factors. For many, the deciding factor is the price of the heating medium for the heating system, and some more emphasis on safety and efficacy. In any case, before the purchase is necessary to weigh all the arguments in favor of a decision.

Coolant temperature schedule: the requirements and standards

For coolant temperatures in the heating rate based on the system contains the indices obtained when the liquid has come full circle and returns to the boiler. According to the standards, the average temperature in the room should not be less than + 8 ° C for three days.

In addition to the rules that have been provided, account must be taken and minimal heat in the boiler. It is important that the water temperature did not fall below dew point. Usually, this figure varies within 60-70 ° C, although some deviations are acceptable and related characteristics of the fuel used, as well as the unit itself. If for any reason this rule is violated, the result will appear condensate, which adversely affect the service life of the device.

Interesting!Temperature graph coolant supply to the heating system provides that in the homes, where people reside, the air temperature should not fall below 20 ° C. For industrial buildings, the figure is somewhat lower - 16 ° C.

Furthermore, in the process of heating the heating medium into consideration such factors as the outside air temperature must be adopted. That is, if the street is very cold and the temperature dropped below -20 ° C, the fluid must be heated stronger.

In this case, the coolant temperature graph, the limits of which are defined as 30-90 ° C should not violated, as this may lead to the fact that the coatings will be equipment decompose. Yes, and sanitary regulations prohibit the excess of these indicators.

Thus, choosing a coolant for electrode boilers heating and other systems must take into account many factors. Of course, price - an important criterion, and for many it is decisive, but do not forget about safety. If possible, it is better not to save, and to give preference to the best coolants, which are also characterized by high efficiency.