Water heated floors in one circuit. Underfloor heating contour length: optimal pipe values. Contour length calculation

18.10.2019

MO "Mosoblgaz" was at the beginning of the creation gas facilities in Moscow and the region. Natural gas and a reliable supplier did their job after the end of the war. MosoblGaz acted as an important energy supplier in the difficult postwar period. During that period, the famous products of the factories named after them were built. S. Ordzhonikidze in the city of Podolsk, "Electrostaltyazhmash", enterprises of medium and heavy engineering in the cities of Klimovsk, Kolomna, Lyubertsy and Mytishchi, large factories and textile industry plants were built.

The creation of a developed and modern gas economy has become one of the ways to cope with the chronic shortage of energy capacities. One of the most important innovations in the 21st century was the introduction of a personal account, which made life easier for ordinary Soviet citizens. But visible shortcomings of Soviet production also remained: every day from 14:00, technological work is carried out according to the plan for half an hour. At this time, the main functions Personal account clients are not available.

Registration in the personal account Mosoblgaz

By clicking on the link on the Mosoblgaz website, you can register a personal account, which consists of twelve digits. Subscribers with other personal accounts can apply to the existing branches of the State Unitary Enterprise "Mosoblgaz" to apply for a new account number. To register, you need to enter the following data:

Email address
personal account
Phone number
Password
Check symbols

All form fields are required. A link will be sent to your email address, and an SMS code will be sent to your mobile phone to complete the registration.

If you have any problems entering, you can get advice on the line 8 800 200-24-09.

Service price: no service fee, registration is free

Possibilities of personal account Mosoblgaz

Advantages of the Mosoblgaz personal account:

pay for the gas supply using a card of any bank without commission
enter and transmit gas meter readings
control the payment of invoices and the presence of debts to the supplier
get different background information

All actions can be performed around the clock at a convenient time for the client.

Login to your personal account Mosoblgaz

Official site: http://www.mosoblgaz.ru

Telephone hotline : 8 800 200-24-09. Mon-Thurs: from 9:00 to 18:00; Fri: from 9:00 to 16:45, Sat, Sun - day off

Entrance to new version personal account "Mosoblgaz": to come in .

Entrance to personal account of State Unitary Enterprise MO "Mosoblgaz".

Mosoblgaz is one of the largest gas distribution companies in Russia and provides natural gas to cities and towns of the Moscow Region. The enterprise's area of responsibility includes 51,000 km of gas pipeline networks, thanks to which more than 3 million apartment and individual households, as well as more than 10,000 legal entities, are supplied with gas.

The energy supplier has 10 branches throughout the Moscow region. You can get acquainted with the structure of the organization and register a personal account Mosoblgaz on the official website of the enterprise.

Possibilities of a personal account

Visiting the personal account of Mosoblgaz online gives the user the following opportunities:

Submission of an application for technological connection to gas pipelines.
Transfer of readings of energy consumption metering devices.
Making an appointment with Mosoblgaz specialists.
Connecting a personal account.
Formation of a payment document on gas debt.
Online payment of debt to the energy supplier.

Separate versions of the personal account are available for individual payers, municipal institutions, government agencies.

Registration and login to your personal account

The entrance to the Mosoblgaz personal account is made through the tab of the same name on the main page. The user must fill out the application form for creating a personal account, entering the following data into it:

Telephone number.
Email address.
Account number (if any).
Password (created by the user, you can recover the password by clicking on the link of the same name).

After filling, a confirmation code will be sent to your mobile phone (you must enter the combination in the appropriate window). After registration is completed, the function of entering your personal account will be available, where you can subsequently correct personal data and enter information about metering devices.

For consumers of natural gas supply services of the MosOblGaz company, it will be interesting to learn about the possibilities of a personal account in the system. This option allows you to control the consumption of your household, pay for services and leave applications on the company's website. Despite the fact that news articles and current tariffs for the consumption of natural gas are freely available on the pages of the site, the owners of the Mosoblgaz personal account have other advantages, which the information will tell about.

MosOblGaz is the largest supplier of natural gas for the needs of consumers and enterprises located in the Moscow region. The list of regions and settlements the territory of which the company serves can be seen in the corresponding section on the official website.

mosoblgaz.ru— official site Mosoblgaz

On the main page and sections of the resource, you can also find up-to-date information about the work of the company, the services provided and possible changes. Of greatest interest is the section: personal account Mosoblgaz, access to which is carried out after registration.

Possibilities of a personal account

Access to the Mosoblgaz personal account is given after completing the registration process. The capabilities of this service allow you to easily pay your bill for natural gas services, and without a bank commission. In addition, registered users have other options for accessing their account.

What gives registration in a personal account:

The ability to control costs and compare the volume of gas consumed for the previous and current period.
Pay current debt with any debit card of the bank of the Russian Federation.
Introduction to readings of gas appliances.
Obtaining up-to-date and reliable information about the company's activities.
Ability to make payments 24/7.
Translation function gas equipment owned by another person.
Conclusion of an agreement for the provision of gasification services.
Installation and replacement of natural gas metering devices.
Making an appointment with the company's specialists at the nearest branch of MosOblGas.

Also, you will always have access to the necessary information on the supplier. In particular, the location and working hours of regional offices, information on connection conditions and tariffs for the population.

Registration and login to your personal account

The registration service is available exclusively to existing subscribers of MosOblGaz, because for authorization you will have to use some personal data, including your personal account number. To successfully authorize in the system, you must also specify a valid e-mail address, full name, phone number and personal account. In order for the system to skip the entered data, be sure to indicate the code of your branch before the account number. It can be found from the corresponding field in the prepaid receipt.

lkk.mosoblgaz.ru/auth/register– registration of a personal account of an individual

The undoubted advantage of using the Mosoblgaz personal account will be the ability to freely make payments in the future, without duplicating the entered data each time.

How is registration carried out:

On the official website of the company, you must select the field for registration in your personal account.
After the appearance of a separate window for registration, enter the e-mail address and the password invented in advance.
Follow the link in the sent message. This is required to activate your account.
Some functions of the system will be available after such a "short version" of registration. To take advantage of the advanced features of the "Personal Account", you will need to continue the process of entering data.
For further activation, it is necessary to enter your personal account number, in which the first two digits are the branch code.
Also, for identification, the user will have to indicate the number of a mobile or landline phone, a physical address.
The final stage of registration is to confirm personal data. To do this, you will need to enter a code that is sent automatically to the specified phone number. You will also need to solve the captcha - perform a simple task that will prove that you are not a bot.

lkk.mosoblgaz.ru/auth/login- entrance to the personal account of the State Unitary Enterprise MO Mosoblgaz

For MosOblGaz subscribers, there is unique opportunity login through social networks. To do this, in the registration form, select the icon of the corresponding resource (in which you have a valid account) and, following the instructions, fill in the proposed data. It should be noted that this option is available exclusively to already registered users for the convenience of logging into the Mosoblgaz personal account for an individual.

How to send meter readings

Monthly transmission of meter readings is the most requested function of the "Personal Account". To do this, you need to enter the necessary data in the "transfer testimony" section. After some time, the status of the information will be changed to "Accepted", which means that the data is being processed and the amount to be paid will be calculated further.

After completing the payment, it is also recommended to check the status of the operation. It can be found in the "Check Payment" section. After confirmation of receipt of payment funds (usually takes from one to three business days), the status of the payment will be changed to "Performed". If after the specified period the application has not been confirmed, it is necessary to contact the representative of the company and find out possible reasons. It is also convenient to do this remotely by filling out the application field in the appropriate section.

Mobile application MosOblGaz

https://play.google.com/store/apps/details?id=ru.mosoblgaz

Customer Support

The service can be contacted around the clock. A convenient feedback form will allow you to ask your question to the operator on duty, leave a request for equipment replacement and solve other current problems. All these services are available when contacting any convenient communication channel.

Today it is difficult to imagine Vacation home no floor heating. Before starting the installation of heating, it is necessary to calculate the length of the pipe that is used for underfloor heating. Almost every country house has its own heat supply system, the owners of such houses independently install a water floor - if this is provided for by the layout of the premises. Of course, it is possible to install such a warm floor in apartments, but such a process can bring a lot of trouble to both apartment owners and employees. This is due to the fact that it is impossible to bring a warm floor to the heating system, and installing an additional boiler is problematic.

The dimensions and shape of the pipe for underfloor heating can be different, therefore, in order to understand how to calculate a warm floor, you need to understand the system and structure of such a system in more detail.

How can you install underfloor heating?

There are several ways to install underfloor heating. As an example, consider 2 ways.

Grazing. This floor has a flooring made of various materials such as polystyrene or wood. It is worth noting that such a floor is faster to install and put into operation, since it does not require additional time to fill the screed and dry it.

Concrete. Such a floor has a screed, which will take more time to apply, so if you want to make a warm floor as quickly as possible, then this option will not suit you.

In any case, installing a warm floor is a difficult task, so it is not recommended to carry out this process on your own. If there are no additional funds for employees, then the installation of the floor can be carried out independently, but strictly following the installation instructions.

Underfloor heating concrete installation

Despite the fact that laying a warm floor in this way takes longer, it is more popular. A pipe for a warm floor is selected depending on the materials. It is worth noting that the price of the pipe will also depend on the material from which it is made. The pipe with this method is laid along the contour. After laying the pipe, it is poured concrete screed without additional thermal insulation materials.

Calculation and installation of a warm floor

Before proceeding with the installation of the floor, it is necessary to calculate the required number of pipes and other materials. The first step is to divide the room into several identical squares. The number of parts in a room depends on the area of the room and its geometry.

Calculation of the required amount of pipe

The maximum length of the circuit required for a warm water floor should not exceed 120 meters. It is worth noting that such dimensions are indicated for several reasons.

Due to the fact that water in the pipes can affect the integrity of the screed, if it is installed incorrectly, the floor can be damaged. An increase or decrease in temperature negatively affects the quality of a wooden floor or linoleum. Choosing optimal dimensions squares - you distribute energy and water more efficiently through pipes.

After the room is divided into parts, you can start planning the shape of the pipe laying.

Methods for laying pipes for underfloor heating

There are 4 ways to lay the pipe:

snake;
Double snake (fits into 2 pipes);
Snail. The pipe is laid in 2 times (bend) leaving one source gradually rounding towards the middle;
Corner snake. Two pipes come out from the same corner: the first pipe starts the snake, the second one ends.

Depending on which pipe laying method you choose, you need to calculate the number of pipes. It is worth noting that pipes can be laid in several ways.

Which styling method should you choose?

In large rooms that have an even square or rectangular shape, it is recommended to use the “snail” laying method, so that a large room will always be warm and cozy.

If the room is long or small, it is recommended to use a "snake".

Laying step

In order for a person’s feet not to feel the difference between the sections of the floor, it is necessary to adhere to a certain length between the pipes, at the edge this length should be about 10 cm, then with a difference of 5 cm, for example, 15 cm, 20 cm, 25 cm .

The distance between the pipes should not exceed 30 cm, otherwise it will be simply unpleasant to walk on such a floor.

Calculation of pipes for underfloor heating

On average, 5 running meters of pipe are needed per 1 m2. This method is easier to determine how many pipes per m2 are needed to equip a warm floor. With this calculation, the step length is 20 cm.
You can determine the required amount of pipe using the formula: L \u003d S / N * 1.1, where:

S is the area of the room.
N - Laying step.
1.1 - pipe margin for turns.

When calculating, it is also necessary to add the number of meters from the floor to the collector and back.
Example:

Floor area (useful area): 15 m2;
Distance from floor to collector: 4 m;
The step of laying the warm floor: 15 cm (0.15 m.);
Calculations: 15 / 0.15 * 1.1 + (4 * 2) = 118 m.

What should be the length of the water floor heating circuit?

These parameters must be calculated based on the diameter and material from which the pipes are made. So, for example, for metal-plastic pipes with a diameter of 16 inches, the length of the contour of a water-heated floor should not exceed 100 meters. The optimal length for such a pipe is 75-80 meters.

For pipes made of cross-linked polyethylene with a diameter of 18 mm, the length of the contour on the surface for a warm floor should not exceed 120 meters. In practice, this length is 90-100 meters.

For a metal-plastic pipe with a diameter of 20 mm, the maximum length of the warm floor should be approximately 100-120 meters, depending on the manufacturer.

It is recommended to choose pipes for laying on the floor based on the area of \u200b\u200bthe room. It is worth noting that their durability and quality of work depend on what material the pipes are made of and how they are laid on the surface. The best option would be metal-plastic pipes.

Floor installation steps

After you have chosen high-quality and reliable pipes, it is recommended to proceed with the installation of a warm floor. This must be done in several stages.

Installation of thermal insulation

At this stage, there are preparatory work, the floor is cleared and a layer of thermal insulation is laid. Styrofoam can act as thermal insulation. Styrofoam layers are laid on the subfloor. The thickness of the foam should not exceed 15 cm. It is recommended to calculate the thickness depending on the size of the room, its location in the apartment, as well as the individual preferences of the person.

Installation of waterproofing

After the foam is laid, it is necessary to lay a layer of waterproofing. Polyethylene film is suitable as a waterproofing. The plastic film is fixed to the walls (near the plinth), and the floor is reinforced with mesh from above.

Laying and fixing pipes

Next, you can lay pipes for underfloor heating. After you have calculated and selected a pipe laying scheme, this process will not take you much time. When laying pipes, they must be fixed on the reinforcing mesh with special stretch marks or clamps.

Crimping

Pressing is practically final stage underfloor heating installation. Pressure testing must be carried out within 24 hours at operating pressure. Thanks to this stage, it is possible to identify and eliminate mechanical damage to pipes.

Pouring with concrete mortar

All flooring work is carried out under pressure. It is worth noting that the thickness of the concrete layer should not exceed 7 cm.

After the concrete has dried, you can lay the floor. As a floor covering, it is recommended to use tiles or linoleum. If you choose parquet or any other natural surface, due to possible temperature changes, such a surface may become unusable.

Collector cabinet and its installation

Before you calculate the pipe flow required for installation on the surface and underfloor heating, you need to prepare a place for the collector.

The collector is a device that maintains pressure in the pipes and heats the used water. Also, this device allows you to maintain the required temperature in the room. It is worth noting that it is necessary to buy a collector depending on the size of the room.

How and where should the manifold cabinet be installed?

There are no restrictions for installing a manifold cabinet, at the same time, there are several recommendations.

It is also not recommended to install the collector cabinet too high, since in the end the circulation of water may occur unevenly. Optimal Height to install a cabinet 20-30 cm above the bare floor.

Tips for those who decide to install a warm floor on their own

There must be an air outlet in the collector cabinet from above. Laying a warm floor under furniture is strictly prohibited. Firstly, because it will lead to damage to the materials from which the furniture is made. Secondly, it can lead to fire. Materials that are highly flammable can catch fire easily if there is a high temperature in the room. Thirdly, the heat from the floor must constantly rise up, the furniture prevents this, so the pipes heat up faster and can deteriorate.

It is necessary to choose a collector depending on the size of the room. In the store, when buying, you need to pay attention to what dimensions this or that collector is designed for.

Pay attention to the advantages of certain materials from which the pipes are made.

The main qualities of pipes:

wear resistance;
Thermal resistance.

Buy pipes with an average diameter. If the pipe diameter is too large, the circulation of water will take a very long time, and reaching the middle or end (depending on the laying method), the water will cool down, the same situation will occur with a pipe with a small diameter. So the best option will be pipes having a diameter of 20-40 mm.

Before you calculate a warm floor, consult with those who have already done it. Calculation of the area and number of pipes is an important step in preparing for floor installation. In order not to be mistaken, buy + 4 meters of pipe, this will allow you not to save on the pipe if it is not enough.

Before laying pipes, step back from the walls 20 cm in advance, this is the average distance over which the heat from the pipes acts. Calculate your steps wisely. If the distance between the pipes is calculated incorrectly, the room and floor will be heated in strips.

After installing the system, test it, so you can understand in advance whether the collector was installed correctly, as well as notice mechanical damage.

If you install the underfloor heating correctly, it will serve you for many years. If you have any questions, it is better to ask them to an expert of our website or contact specialists who will qualitatively, quickly and reliably improve and prepare your room for installing a warm floor.

The main argument in favor of the "warm floor" system is the increased comfort of a person's stay in the room, when, as heater the entire surface of the floor protrudes. The air in the room warms up from the bottom up, while at the floor surface it is somewhat warmer than at a height of 2-2.5 m.

In some cases (for example, when heating shopping malls, swimming pools, sports halls, hospitals), underfloor heating is the most preferable.

To the disadvantages of systems floor heating are relatively high, in comparison with radiators, the cost of equipment, as well as increased requirements for the technical literacy of installers and the quality of their work. Using quality materials and compliance with the installation technology of a well-designed water floor heating system, there are no problems during its subsequent operation.

The heating copper works on radiators in the mode 80/60 °C. How to connect the "warm floor"?

To obtain the design temperature (as a rule, not higher than 55 ° C) and the specified coolant flow rate in the "warm floor" circuit, pumping and mixing units are used. They form a separate low-temperature circulation circuit, into which the hot coolant from the primary circuit is mixed. The amount of mixed coolant can be set either manually (if the temperature and flow in the primary circuit are constant) or automatically using temperature controllers. Fully realize all the advantages of the "warm floor" allow pumping and mixing units with weather compensation, in which the temperature of the coolant supplied to the low-temperature circuit is adjusted depending on the outside temperature.

Is it allowed to connect a "warm floor" to the central heating or hot water system of an apartment building?

It depends on local legislation. For example, in Moscow, the installation of underfloor heating from common house water supply and heating systems is excluded from the list of permitted types of re-equipment (Decree of the Government of Moscow No. 73-PP of February 8, 2005). In a number of regions, interdepartmental commissions that decide on the issue of agreeing on the installation of a "warm floor" system require additional expertise and calculated confirmation that the installation of a "warm floor" will not lead to disruption in the operation of common house engineering systems(see "Rules and regulations technical operation housing stock", clause 1.7.2).

From a technical point of view, connecting a "warm floor" to a central heating system is possible provided that a separate pumping station is installed. mixing unit with pressure limitation of the coolant returned to the house system. In addition, if there is an individual heating point equipped with an elevator (jet pump), the use of plastic and metal-plastic pipes in heating systems is not allowed.

What material is better to use as a floor covering in the "warm floor" system? Can parquet floors be used?

Best of all, the effect of "warm floor" is felt when floor coverings from materials with a high coefficient of thermal conductivity ( ceramic tile, concrete, self-leveling floors, baseless linoleum, laminate, etc.). If carpet is used, it must have a "suitability mark" for use on a warm base. Other synthetic coatings (linoleum, relin, laminated boards, plastics, PVC tiles, etc.) must have a “no sign” of toxic emissions at elevated base temperatures.

Parquet, parquet boards and boards can also be used as floor heating, but the surface temperature should not exceed 26 °C. In addition, a safety thermostat must be included in the mixing unit. The moisture content of natural wood flooring materials should not exceed 9%. Works on laying parquet or plank flooring may only be carried out at a room temperature of at least 18 ° C and 40-50% humidity.

What should be the temperature on the surface of the "warm floor"?

The requirements of SNiP 41-01-2003 "Heating, ventilation and air conditioning" (clause 6.5.12) regarding the surface temperature of the "warm floor" are given in the table. It should be noted that foreign regulatory documents allow several big values surface temperatures. This must be taken into account when using calculation programs developed on their basis.

How long can the pipes of the "warm floor" circuit be?

The length of one loop of the "warm floor" is dictated by the power of the pump. When it comes to polyethylene and metal-plastic pipes, then it is economically feasible that the length of a pipe loop with an outer diameter of 16 mm does not exceed 100 m, and with a diameter of 20 mm - 120 m. It is also desirable that the hydraulic pressure loss in the loop does not exceed 20 kPa. The approximate area occupied by one loop, subject to these conditions, is about 15 m2. With a larger area, collector systems are used, while it is desirable that the length of the loops attached to one collector be approximately the same.

What should be the thickness of the heat-insulating layer under the pipes of the "warm floor"?

The thickness of the thermal insulation, which limits the heat loss from the "underfloor heating" pipes in the "down" direction, should be determined by calculation and largely depends on the air temperature in the design room and the temperature in the underlying room (or soil). In most Western calculation programs, heat losses "down" are assumed to be 10% of the total heat flow. If the air temperature in the calculated and underlying room is the same, then this ratio is satisfied by a layer of expanded polystyrene 25 mm thick with a thermal conductivity coefficient of 0.035 W / (mK).

What pipes are better to use for the installation of the "warm floor" system?

Pipes for a "warm floor" device must have the following properties: flexibility, allowing the pipe to be bent with a minimum radius to ensure the required laying step; the ability to keep the shape; low coefficient of resistance to the movement of the coolant to reduce the power of pumping equipment; durability and corrosion resistance, since access to pipes during operation is difficult; oxygen impermeability (as well as any pipeline of the heating system). In addition, the pipe should be easy to process with a simple tool and have an acceptable price.

The most widespread systems are "warm floor" made of polyethylene (PEX-EVOH-PEX), metal-plastic and copper pipes. Polyethylene pipes are less convenient in work, because they do not retain the given shape, and when heated, they tend to straighten up ("memory effect"). Copper pipes, when embedded in a screed, must have a polymer coating to avoid alkaline exposure, moreover, this material is quite expensive. Metal-plastic pipes most fully meet the requirements.

Do I need to use a plasticizer when pouring a "warm floor"?

The use of a plasticizer allows you to make the screed more dense, without air inclusions, which significantly reduces heat loss and increases the strength of the screed. However, not all plasticizers are suitable for this purpose: most of those used in construction are air-entraining, and their use, on the contrary, will lead to a decrease in the strength and thermal conductivity of the screed. For "warm floor" systems, special non-air-entraining plasticizers are produced, based on finely dispersed scaly particles of mineral materials with a low coefficient of friction. As a rule, the consumption of the plasticizer is 3-5 l/m3 of solution.

What is the point of using aluminum foil coated thermal insulation?

In cases where the pipes of the "warm floor" are installed in the air gap (for example, in the floors along the logs), the foiling of the thermal insulation makes it possible to reflect most of the downward radiant heat flux, thereby increasing the efficiency of the system. Foil plays the same role in the construction of porous (gas or foam concrete) screeds.

When the screed is made of a dense cement-sand mixture, thermal insulation foiling can only be justified as an additional waterproofing - the reflective properties of the foil cannot manifest themselves due to the lack of an air-solid body boundary. It must be borne in mind that the layer of aluminum foil poured cement mortar, must necessarily have a protective coating of a polymer film. Otherwise, aluminum can be destroyed under the influence of a highly alkaline environment of the solution (pH = 12.4).

How to avoid cracking of the "warm floor" screed?

The reasons for the appearance of cracks in the "warm floor" screed may be the low strength of the insulation, poor-quality compaction of the mixture during installation, the absence of a plasticizer in the mixture, too thick a screed (shrinkage cracks). The following rules should be followed: the density of the insulation (expanded polystyrene) under the screed must be at least 40 kg/m3; the screed mortar must be workable (plastic), the use of a plasticizer is mandatory; in order to avoid the appearance of shrinkage cracks, polypropylene fiber should be added to the solution at the rate of 1-2 kg of fiber per 1 m3 of solution. Steel fiber is used for load-bearing floors.

Is waterproofing required for underfloor heating?

If a vapor barrier device is not provided for in the architectural and construction part of the project, then with the "wet method" of installing the "warm floor" system on floors, it is recommended to lay a layer of glassine over the leveled floor. This will help prevent laitance from leaking through the overlap during pouring of the screed. If the project provides for interfloor vapor barrier, then it is not necessary to arrange additional waterproofing. Waterproofing in wet areas (bathrooms, lavatories, showers) is arranged in the usual way over the "warm floor" screed.

What should be the thickness of the damper tape installed around the perimeter of the room?

For rooms with a side length of less than 10 m, it is sufficient to use a seam with a thickness of 5 mm. For other rooms, the calculation of the seam is carried out according to the formula: b \u003d 0.55 o L, where b is the thickness of the seam, mm; L is the length of the room, m.

What should be the step of laying the pipes of the "warm floor" loop?

The step of the loops is determined by calculation. It should be borne in mind that a loop pitch of less than 80 mm is difficult to implement in practice due to the small bending radius of the pipe, and a pitch of more than 250 mm is not recommended, as it leads to a noticeable uneven heating of the "warm floor". To facilitate the task of choosing the loop pitch, you can use the table below.

Is it possible to install heating only on the basis of the "warm floor" system, without radiators?

To answer this question in each case, it is required to make a thermal calculation. On the one hand, the maximum specific heat flow from the "warm floor" is about 70 W/m2 at an air temperature in the room of 20 °C. This is sufficient to compensate for heat losses through enclosing structures made in accordance with thermal protection standards.

On the other hand, if we take into account the heat costs for heating the required sanitary standards outdoor air (3 m3 / h per 1 m2 of living space), then the capacity of the "warm floor" system may be insufficient. In such cases, the use of edge zones with elevated surface temperatures along the outer walls, as well as the use of sections of "warm walls" is recommended.

How soon after pouring the screed can I start the "warm floor" system?

The screed must have time to acquire sufficient strength. After three days under natural hardening conditions (without heating), it gains 50% strength, after a week - 70%. Full set strength to the design grade occurs after 28 days. Based on this, it is recommended to start the "warm floor" no earlier than three days after pouring. You also need to remember that the filling of the "warm floor" system with a solution is carried out with floor pipelines filled with water at a pressure of 3 bar.