How to make heating in the bath in winter - options for effective heating systems. Water heated floor in a wooden house under a screed from the stove: characteristics and features of the device Warm floor from a wood-burning stove

Everyone knows that heat rises. The bath room is no exception, where even with high temperatures air, the floor covering remains cold, delivering uncomfortable sensations to our feet. And yes, it won't take long to catch a cold. To create a normal microclimate, many arrange a warm floor in the bath from the stove, without spending money on purchasing an electric heating system. The water network, the coolant of which will be heated from the stove, will perfectly cope with the task of floor heating.

Distinctive features of the system

If a decision is made to use a furnace instead of a boiler, a heat exchanger should be installed above the furnace section. For this, a metal tank or pipe registers are perfect. From the heat exchange point water heating is laid in the premises where it is needed.

Heated floors in a bathhouse from a stove are a simple matter, but it has some special differences. In order to cold water could return through the pipes to the heat exchanger, installation of a circulation pump would be required. It is dispensed with in cases where the stove is located slightly below the floor level. But in this case, the pipes should be slightly larger in diameter than usual - at least twenty-four millimeters. But even then the water circulation will leave much to be desired, the system will work with low efficiency.

The main problem of the floor heating system from a brick stove is that it is not possible to regulate the temperature regime, as is possible with a boiler. To keep our feet warm and pleasant, the temperature of the floor should be within forty degrees of heat. And the water in the bath is sometimes heated to a boil. This means that in addition to the pump, a mixing point will have to be installed in the network.

How to mount a heat exchanger in the stove big size there is no possibility, a battery capacity is installed nearby. Via steel pipes ok it is connected to a heat exchange tank. To avoid the loss of thermal energy through the floor, the surface of its base is covered with heat-insulating materials. They perfectly reflect energy and help raise the temperature in the bath room.

If we look at the photo of floor heating systems, then we can not see one more difference - the installation of warm floors in the bath implies the presence of a system slope towards the drain. Through it, if necessary, water will freely enter the drainage network.

To improve the moisture resistance of the floor, it is advised to arrange a concrete screed, lay a coating of ceramic material on top. Properly made underfloor heating in a tile bath is considered the best option.

Advantages and disadvantages of the floor heating system

A water heated floor in a bath differs from a stove in a number of advantages:

none of the elements of the heating network will create electromagnetic waves, as happens with the electrical system;
the design is environmentally friendly to the human body;
the optimal microclimate is constantly maintained in the bath;
due to the use of water as a heat carrier, heated from a common furnace, a good saving on heating is created.

Unfortunately, the system also has some negative points:

In winter, water must be drained from the heating system so that it does not freeze and damage the pipes. Or you will have to constantly heat the stove, which is also not very convenient and sometimes even costly. In this case, many owners go to the trick - instead of water, antifreeze is poured into the system;
A lot of heat is expended on heating the storage tank. For this reason, the stove begins to heat the steam room and the washing room worse;
the warm floor in the bath from the stove is a complex scheme, covering all rooms with its passage under the floor. This requires a solid volume of heat carrier, the time for its heating increases;
by installing such a heating system, the floors will have to be protected from getting wet. The fact is that moisture, reaching the insulation layer, will make it ineffective.

Arrangement methods and materials used

There are several methods for installing underfloor heating in a bath:

The best option is a concrete screed. It makes it possible to save on material, reliably protects against moisture. But such a coating can be put into operation only a month after its installation. And if the plumbing system is suddenly damaged, it is very difficult to find the place of the leak. We'll have to dismantle the entire floor. See also: "".
The popularity of polystyrene boards. They have a special reflective foil layer, have convenient recesses that help to fix the pipes. But on top of such a coating will have to arrange a screed.
It is quite possible to arrange a warm wooden floor in the bath. But it is necessary to accurately calculate everything in order to arrange holes in the logs through which the pipes will pass. This type of floor is easy to repair.

It is possible to arrange a heat-insulating layer from expanded polystyrene, mineralized wool, expanded clay or polystyrene.

Device diagram

In the photo, the design of underfloor heating in the bath may look like this:

a waterproofing layer that prevents the accumulation of condensate in the floor;
thermal insulation - helps to keep warm;
reinforcing mesh, with which the protection of the insulating layer is created;
foil reflector that directs heat into the room;
spiral type piping system so that the floor is heated evenly;
screed with a slope towards the drain;
clean coverage.

Preparatory activities

Before starting work on arranging a warm floor, it is necessary to prepare the foundation, to think over the correct drain system.

The work is carried out in the following sequence:

Excavation is carried out inside the washing compartment within its foundation base, the surface is carefully rammed. At the same time, a pipe is laid in the foundation wall, through which it is planned to drain water into the sewer network.
After that, a sand and gravel pillow fifteen centimeters thick is arranged, compacted.
About twenty centimeters everything is covered with expanded clay. The bias is maintained.

Installation work

Some owners are experimenting, trying to use cheap way- arrange a warm floor in a bottle bath. But it is best to use copper or metal-plastic tubes.

Having finished preparatory work on the base, they begin laying a pipe system through which the water coolant will move:

As a waterproofing, roofing material is used, which is laid in two layers. Docking areas are smeared with mastic. Stripes in layers should be placed perpendicularly.
Further - thermal insulation material. But at the same time, remember that you should observe the preservation of the slope to the drain.
To protect the insulation, a reinforcing mesh is laid, pipes of the heating system are laid on it.
After completing the connection and organizing a performance test, they begin to pour the concrete screed (more: ""). Before that, a damper tape is laid around the entire perimeter, which protects the floor from thermal deformation. The screed is made of sand and cement, reinforced fiber is added to the solution. It is allowed to use ready-made dry mixes.
The filled screed is aligned with the installed beacons. It is necessary to arrange a slope towards the drain hole.
After waiting for the time required for complete solidification, floor coverings can be laid on the screed.

In a word, it is quite simple to arrange a floor heating system from a stove. This method will provide an opportunity to save a lot on the purchase of a separate boiler, the cost of electrical energy.

The properties of warm air are such that it rises, so it can be hot in the bath, but the floor will remain cold.

Such differences are uncomfortable for many people, so you can make a floor heating system, which is widespread today.

It is easier and more expedient to make a warm floor in a bathhouse from a stove than to use electric floors. After studying the material of the article, it will be possible to find out the features of the system and installation methods.

General information about the system

The water in the pipes of the water circuit will be heated from the stove

For a warm floor in a bath, the installation of a boiler will not be required, since the heating will take place from the stove. To do this, a heat exchanger from a metal tank should be made above the firebox.

From it it will be possible to lay water heating on the floor in those rooms where it is necessary. Additionally, you will need to install a pump to circulate water in the pipes.

Since it will not be possible to install a volumetric heat exchanger in the furnace, an additional accumulator tank should be placed near it and connected to the heat exchanger using steel pipes. To reduce heat loss, insulation is laid on the floor, which can properly reflect it and the rooms will have the required temperature.

The main problem with a water heated floor from a stove is the inability to adjust the temperature. For heating, it is recommended to heat the floor up to 40 degrees, but in the bath the water heats up more and you will need to additionally install a mixing unit.

To protect the floor itself from moisture, a standard cement-sand screed is used, and tiles are used as flooring.

Before installing the system, you need to familiarize yourself with the pros and cons, which are shown in the table:

№	Advantages	Flaws
1	No electromagnetic radiation unlike the electrical system.	In winter, it is necessary to drain the water so that the pipes do not break from frozen water or the stove must be constantly heated. The best option is to change the water to antifreeze.
2	Ecological cleanliness and harmlessness to health.	A lot of heat is required to heat the battery tank, making the stove less efficient for its primary purpose.
3	Comfortable conditions are maintained in the bath, the floor remains warm.	To heat floors in several rooms, a large coolant should be installed, which will increase the warm-up time.
4	Profitability.

Underfloor heating can be made using several types of materials and devices, which are presented in the table:

Name	Advantages	Flaws
Concrete screed - for a bath perfect option. Filling is simple and does not require special skills.	Saves money on building materials, and due to cement, the floor will be resistant to moisture.	It will be possible to use the floor a month after pouring, and if the pipe is damaged, you will have to remove the entire screed to be able to determine the place of the leak.
Polystyrene boards are easy to use.	Each plate already has a layer of foil to reflect heat, and they are also equipped with places for fixing pipes.	It is necessary to carry out additional pouring of the screed.
Heating pipes in wooden floor.	High maintainability.	Accurate calculations are needed to determine the laying of the pipeline.

Any thermal material can be used to insulate the system: mineral wool, expanded clay, polystyrene and other types.

Device and preparation of the floor

A concrete screed is poured over the laid materials and pipes

The warm floor in the bath from the stove according to the scheme is made of the following layers:

A layer of waterproofing that will protect the floor covering from the collection of condensate.
The heat-insulating layer will allow you to save the heat that can pass through the floors.
A reinforcing mesh is laid to protect the insulation.
A layer of reflective materials with foil that will reflect warmth into the room.
The pipeline, which is laid in the form of a spiral, for uniform heating of the area.
Screed for leveling the surface with a small inclination to the drain.
Laying the final floor covering.

If the floor will be laid on open ground, then a pillow of gravel and sand should be poured in front of the waterproofing layer, and a layer of expanded clay should be laid. Expanded clay will additionally perform a heat-insulating function.

Before any work preparation is necessary. For the floor that will be heated from the stove, you should prepare the base and make a drain. The work is done as follows:

It is necessary to remove the soil between the foundation, under washing room and compact the surface. In the wall, you will need to first lay a pipe to drain the water into the sewer.
A backfill is made of sand and gravel 15-20 cm high, after which the pillow is rammed.
The base is insulated with expanded clay. The layer of material is 15-20 cm depending on the climate.

When preparing the surface, you need to remember about the slope for the drain.

Step by step installation instructions

Heating the floor in the bath due to the heat of the stove is a profitable step

The base in the bath is ready, which means it's time to start piping. For this, you can use both copper pipes and metal-plastic pipes. The installation process looks like this:

Initially, a waterproofing material is installed. For this, roofing material is used, which is laid in two layers. Its joints are glued with mastic, and all strips of material must be perpendicular to each other.
Next is the laying of thermal insulation.
The next step is to install a reinforcing mesh that will protect the insulating materials.
Underfloor heating pipes are placed on top of the grid and connected to check their operation and possible leaks.
When all the materials are laid, you can start pouring the screed over the entire area of \u200b\u200bthe room. A damper tape is preliminarily glued along the perimeter of the rooms, which will not allow the floor to deform from temperatures. For screed, you can use any kind of mixture.
The floor filling is aligned with the beacons and the angle to the drain is observed.
The water heated floor is almost ready, after the screed has completely dried, you should lay tiles or other floor materials that will apply. For more information about installing a water floor in a bathhouse, see this video:

As you can see, make a warm floor in the bath with wood heating not difficult. As a result, the system will save money that could have been spent on purchasing a boiler and paying for electricity. By laying pipes with heating under the floors, you can achieve a comfortable stay in the bath, shower room and rest room.

Since ancient times, the Russian bath has been a favorite place for water procedures. The only drawback of the bath buildings was considered to be cool floors, which were made of wood and even earthen. As is known from the law of physics, warm air from a stone stove immediately rises, heating the room, but the floors remain cold. It is this temperature difference that leads to an uncomfortable state of a person while taking bath procedures.

Walking on a cold floor causes not only discomfort, but can also lead to colds, especially in children. Therefore, an attentive owner is thinking about how to make a warm floor in a bathhouse from a stove with his own hands. Fortunately, modern industry offers many materials that can facilitate such construction.

Features of a warm floor

Since the bath is considered a room with high humidity and temperature, the materials used to make warm from the stove must effectively resist rotting and the harmful effects of water.

Best for flooring different kinds tiles, as well as natural stone or porcelain stoneware. These materials have a high heat transfer and are completely unaffected by high humidity. Laying the warm floor in the bath from the stove is carried out on tile adhesive, which has high waterproofing properties.

Many owners still dream of warm flooring from natural wood, which creates a pleasant feeling for the feet, but requires a lot of effort in its operation and installation. Under the action of moisture, the wood gets wet and expands, and a microclimate is created at the junctions, which contributes to the development of mold. Therefore, the manufacture of a warm floor in a bath from a simple stove is recommended to be made from coniferous trees, as they contain a large amount of oils that increase the resistance of the material to water, which prevents the wood from rotting.

But when looking for the best coating option, it is better to opt for ceramic floor tiles. Such material has a high degree of thermal conductivity and is several times more efficient than wood. Stone floors also look great, which transfer heat as well as tiles. That's just the process of cleaning the premises will present a certain difficulty, but it depends on the choice of stone.

Benefits of using heating

The main advantage, the preservation of the health of people who take it, has already been mentioned. To date, there are still a number of positive reviews about the warm field in the bath from the stove:

The underfloor heating system is considered absolutely harmless to human health and environmentally friendly.
Unlike electric heating, the warm floor in the bath from the stove can fully boast of the absence of electromagnetic radiation, which adversely affects the well-being of a person.
The use of heating from the stove contributes to the creation of a comfortable microclimate in the bathhouse.
An important role is played by the low cost of fuel for heating and its low consumption.

Of course, skeptics may say that it is difficult to mount such a structure. But these difficulties will more than pay off in further operation.

Disadvantages of floor heating system

However, along with many positive qualities, there are some disadvantages of using a water-heated floor in a stove bath:

During the cold period, the heating circuit may freeze, and this may lead to damage to the pipes. Therefore, it is necessary to drain the coolant or heat it constantly, which is economically unprofitable. You can also use antifreeze instead of water.
Decrease in the efficiency of the furnace, due to the need to spend its thermal energy on heating the storage tank. This disadvantage applies to both the washing department and the steam room.
An increase in the warm-up time in several rooms of the bath building at once.
The impossibility of installing leaking floors, as wetting the thermal insulation can lead to a decrease in the efficiency of the entire heating system.

Floor installation methods

Before starting construction work on installing a warm floor in a bath from a stove with your own hands, you need to decide on the option for its manufacture.

Using modern materials, you can lay the heated coating in the following ways:

The device of the heating system in wooden floors bath room will require the builder to make an accurate calculation of the places for cutting the log for laying heating pipes. The advantage of a wooden coating is the possibility of repair work.

by the most the best option for a warm floor in a bathhouse from a stove is the manufacture of a concrete screed, which has a high degree of moisture resistance and a low cost of the materials used. It should only be noted that the operation of such a coating is possible after a certain period of time necessary for the complete drying of the screed. It will also be quite difficult to determine the location of a pipeline leak if it is damaged.
Application special sheets made of polystyrene, which have a foil reflective layer and the necessary recesses for reliable fastening of the pipe system, became possible with the development of the construction industry. It is worth noting that such a coating still needs to be poured with a concrete screed.

The principle of floor heating from the stove

To make a warm floor in the bath from the stove, you need to make a metal shirt that looks like a skeleton from a longitudinal pipe with several outlets. Such outlets are connected at the bottom by tubes, closing into a heating system. The shirt is installed above the furnace, inside the furnace.

If the floor heating system in the bath is from a stove without a pump, then the water circulates due to the temperature difference of the heated carrier. It is very difficult to create conditions for the natural movement of water; it is necessary that the furnace and the buffer tank, which is installed outside the heat source, be located at least in the same plane. Therefore, the device of a warm floor in a bath from a stove with forced convection is a more common way to create water circulation.

The purpose of the buffer tank

The buffer tank is an indispensable part of the heating system, as it eliminates the boiling of water in the jacket. It is installed immediately after the coil in the coolant system. natural circulation water is possible only if the entire boiler system is located below the floor level in the bath. Such an arrangement is economically unprofitable, therefore, forced movement of water using a circulation pump is more often used.

It is considered very practical to create a warm floor in the bath from the Termofor stove, since the design of this device has a built-in metal shirt. The technological process of heating, based on the use of this furnace, consists in the correct connection of the boiler to the heating system.

Substrate preparation for underfloor heating

Before proceeding with the laying of pipes for heating, it is necessary to perform basic preparatory work. These technological operations include the preparation of the underfloor heating base, as well as the organization of the drainage of water from the bathhouse.

If the underfloor heating is to be installed on open ground, then it is necessary first of all to level the surface, with the creation of a slope to remove water. Then you need to do the following:

Delete excess soil between the foundation walls of the building. Lay sewer pipe and then compact the surface.
Backfill with a mixture of sand and gravel up to 15 cm high. Compact this pillow.
Then, it is desirable to insulate the surface with a layer of fine expanded clay with a thickness of 15-20 cm.

The next step is to insulate the base to avoid heat loss during floor heating.

Wooden floor insulation

thermal insulation wooden surface produced in the following sequence:

load-bearing beams are installed on the bottom, to which bars are attached, which serve as the basis for the vapor barrier;

then a draft floor is created from unedged boards;
insulation is laid between the beams;
on top of the insulation material it is necessary to lay a layer of waterproofing;
the next step will be the installation of pipes for heating;
this entire structure is covered by a basic floor covering.

concrete flooring process

Here the task looks much more difficult than with wooden coating. All warming operations are as follows:

the base for the floor, after making the foundation, is made of a concrete screed or floor slab;
then a waterproofing layer of roofing material is laid on this base;
on top of this layer, a foam polystyrene insulation is installed;
a special mesh for reinforcement is laid on the insulation and this layer is poured with cement mortar.

Experienced builders advise pouring the surface before laying the roofing material bituminous mastic to prevent moisture ingress.

Heating pipe laying schemes

Thermal conductors are laid with a snake or snail. In rooms with a large area, the method of arranging pipes with a snail will be the most effective, since with this method there is no temperature loss. The serpentine laying option is mainly used in rooms up to 10 m 2.

To compensate for heat loss, a reduction in the laying step is used. So, if the standard step is 30 cm, then the second half of the room is passed with a step of 20 cm, and the last quarter - 15 cm. This principle will allow you to maintain the required temperature of the coolant.

The volute laying method has the advantage that it is not necessary to bend the tube 180°, as with serpentine laying, but 90° or even a circular pattern is sufficient.

Regardless of which system was chosen, all operations must be carried out strictly according to technological process. In this case, the main attention should be paid to the requirements of safety and comfort of using the bath room.

Everyone knows that warm air rises. Because of this, in heated bath rooms, the floors will remain cold, which leads to a decrease in the level of comfort. To create an optimal microclimate, you can make a warm floor in the bath from the sauna stove.

System types

Before you make heating in the bath from the floor oven, you need to study the types of systems:

Under concrete screed. Heating pipes are filled with a layer of concrete, which protects them from any mechanical damage, moisture. Ceramic tiles are laid on top of the screed, which transfers heat well.
Under wood flooring. The tubes are placed on the base, and then they are covered with a protective coating, on top of which a wooden floor is laid.

The second option for laying heating circuits can be divided into three types:

Rail system. Pipes with circulating water are laid around rails that guide and hold them motionless.
polystyrene system. Special slabs of polystyrene with grooves for pipes are laid on the subfloor. After that, the heating circuit is mounted.
Modular system. On the draft floor special mats are laid out, which have fastenings for pipes. Stacked on top protective layer, wood flooring.

The main drawback of the structures is low resistance to prolonged exposure to moisture.

The principle of operation of the water system

The principle of operation of the water system that heats the floors in the bath is that a pipeline filled with liquid passes through a brick oven. Water begins to heat up after ignition of the furnace equipment. To circulate the liquid, the system is equipped with a special pump. When the bath is ready to receive visitors, the floors will heat up to the optimum temperature.

Laying methods

There are two options for laying heating pipes for underfloor heating:

Snake - a method suitable for rooms with an area of \u200b\u200bno more than 10 square meters. If you install such a structure in a large room, only one part of it will warm up. The rest of the floor will be cold.
Snail - the most popular method of laying heating pipes. Allows you to evenly warm the floor coverings over the entire area. There are no pressure drops in the system.

For baths, the method of laying the pipeline with a snake is more suitable, since bath rooms have a small area.

Warm floor snake

Advantages and disadvantages

Water heated floor for a bath - complex structure which has many pros and cons. Advantages:

increasing comfort, restoring the microclimate;
uniform floor heating over the entire area of the room;
high rate of thermal inertia;
liquid heating without the use of additional devices.

Flaws:

To perform the installation, you need to use expensive equipment.
To repair the system, it is necessary to open the screed or remove part of the wooden flooring.
To install the pipeline, you need to convert the furnace.
After the installation of the system, the height of the premises is reduced.

For a water-based heating circuit, a drain valve must be installed so that it is possible to drain water from the pipeline before the onset of winter.

Tools and materials

For the manufacture of a water floor heating system in a bath, you need to prepare a series Supplies, tools:

bypass and valve for its adjustment;
a coil that will act as a heat exchanger;
metal container for 100 liters;
thermal head - a mechanism for adjusting temperature regime heating;
collector - a part that distributes water along different contours of the pipeline;
pump to circulate fluid through pipes.

Additionally, you will need various fittings, insulation, fasteners, waterproofing, reinforcing mesh, vapor barrier.

Manufacturing instructions

The manufacture of a pipeline for floor heating in bath rooms is carried out in several stages. The first of these is preparation, after which you can begin the main installation work.

Training

Preparation of the base for the installation of a warm floor:

Remove the layer of soil under the premises where the heating circuit will be installed. Bury a sewer pipe to drain the liquid into a prepared hole near the bath.
Top with a layer of crushed stone mixed with sand. Tamp the layer.
Fill up a layer of expanded clay with a thickness of 20 cm, which will act as a heater.

After completing the preparation, you can proceed with the installation work.

Installation

Installation steps:

Check the base for unevenness. Cover cracks, recesses with cement mortar. Knock down the bumps with a hammer.
Remove dirt, debris, dust.
Put a double layer of waterproofing. To do this, the concrete surface is poured with molten bitumen. A layer of roofing material is laid on top of it. The individual strips must overlap each other.
The procedure with bitumen, roofing material is repeated.
Thermal insulation is being installed. It is better to use penoplex. Layer thickness - 5 cm.
Put a reinforcing mesh on top of the insulation.
Glue the perimeter of the walls with damper tape. It is designed to compensate for the thermal expansion to which the screed will be subjected.
Arrange pipes according to the chosen method. Fix them with clamps on the reinforcing mesh.
Connect the pipeline to the manifold. Start the system to check the tightness of the connection of the main elements.
Install pipes through which water accumulated on the floor of the bath room will drain.
Mix the cement mortar, pour the screed.

It remains to wait for the cement to harden before starting to tile the concrete surface. Laying should be done at an angle, towards the water drain holes.

Starting and checking the system

It is necessary to carry out a test run of the system before pouring concrete. After completing the main installation work, decorative finishes floor, it is necessary to melt the stove, wait a while to check the performance of the heating circuits.

Many people do not like the fact that the floors in the sauna rooms remain cold even when the sauna is fully heated. This not only causes discomfort when walking without shoes, but also spoils the microclimate. To restore the level of comfort, you can install a water floor heating system, which will be powered by a sauna stove.

Useful video

From the video you can learn how to make a warm floor in a bath from a wood-burning boiler:

The special property of warm air to rise up, contributes to the fact that even in a bath with hot air flooring stays cold. Such a sharp contrast between the air temperature in the room and the cold floor does not contribute to comfort while taking bath procedures. Moreover, it can lead to colds. To improve the microclimate in the bath and increase the comfort of staying in it, many owners decide to arrange a warm floor. However, do not rush to buy an electric floor heating system if you have a stove in this facility. You can make a water heated floor. At the same time, you do not need to install a boiler, because a furnace can be used to heat the coolant in the pipeline system.

System features

Since we will use a furnace instead of a boiler, it is necessary to arrange a heat exchanger above the furnace. For these purposes, you can take an ordinary metal tank or register from pipes. From this heat exchanger, the floor water heating system is laid in the right rooms.

However, in order for the cooled coolant to be able to enter the heat exchanger in the furnace again, it is necessary circulation pump. Without it, the system can only work if the oven is located below the floor level. Also in this case, pipes of a larger diameter (24 mm) will be needed, while elements with a diameter of 16 mm are usually used. But even in this case, the circulation will be slow and the system inefficient.

The main problem with the floor heating system is from brick oven lies in the fact that the temperature can be regulated on the boiler, but the oven does not give us such an opportunity. The recommended comfortable temperature for underfloor heating is 40°C. The stove in the bath can heat the water to the boiling point. Therefore, in addition to the pump, you will need to install a mixing unit.

Since it will not work to mount a large heat exchanger in the furnace, it will be necessary to install a battery tank near the stove. It is connected with steel pipes to a heat exchanger. To prevent heat loss through the base of the floor, heat-insulating materials are laid on it. They effectively reflect energy and contribute to an increase in the temperature regime in the room.

A warm floor for water drainage is made with a slope towards the drain hole. From there, the water enters the sewer or drainage structure through the pipe. Also, to increase the moisture resistance of the floor surface, it is recommended to use a cement-sand screed and ceramic tile flooring.

Advantages and disadvantages of the system

Water heated floor in the bath, powered by a stove, has the following advantages:

No structural elements will generate electromagnetic radiation, like an electric floor heating.
Such a system is considered environmentally friendly and harmless to humans.
The ability to maintain a comfortable microclimate in the bath.
Saving.

The disadvantages of the system include the following points:

V winter period water from the pipes will have to be drained so that the frozen liquid does not break them. Otherwise, you will constantly have to heat the furnace. However, if you constantly heat the bath with firewood, no savings will come of it. The only way out is to use antifreeze instead of water.
The second disadvantage is that a lot of heat is spent on heating the battery tank, so the stove copes worse with its main tasks - heating the steam room and the washing room.
With the simultaneous heating of the floors of several bath rooms, for example, a steam room, a rest room, a washing room and a shower room, a large volume of coolant will be required, which will significantly increase its heating time.
In such a bath, it will not be possible to install leaking floors. Otherwise, the insulation will get wet, and the system will become inefficient.

Types of device and materials

To make a warm floor in the bath, you can use several device methods:

Concrete screed is the best way for a bath room, since it allows you to significantly save on materials and has a high degree of moisture resistance due to the use of cement. However, such a floor can be operated only one month after pouring the screed. In addition, if the pipeline is damaged, it is very difficult to find a leak, so the entire screed will need to be dismantled.
It is very convenient to use special polystyrene plates for underfloor heating. They are equipped with a reflective foil layer and have special recesses for fixing heating pipes. However, you still have to pour a screed on top of them.
Laying heating pipes in a wooden floor system is also possible. However, an accurate calculation is needed here in order to determine the locations of the holes in the logs for laying the pipeline. But the maintainability of such floors is higher.

Tip: polystyrene foam boards, mineral wool, expanded clay mortar, polystyrene can be used as a heat-insulating material in any design.

Water floor device

The warm floor in the bath consists of the following structural layers:

a waterproofing layer is needed so that condensate does not collect in the floor during operation of the heating system;
thermal insulation will prevent heat loss through the lower floors;
reinforcing mesh protecting the layer of insulating material;
a reflective layer of foil material will reflect heat energy into the room;
a piping system laid in a spiral (this will allow the surface to be heated evenly);
leveling screed with a slight slope towards the drain hole;
front finish.

To lay the floor on the ground, before laying the waterproofing, a rammed sand and gravel cushion is made and a layer of expanded clay is poured. It will perform additional thermal insulation functions.

Preparatory work

Before you start making a warm floor in the bath, you need to prepare the base and properly organize the drain. To do this, we do the following:

We take out the soil under the washing room between the walls of the foundation. We tamp the surface. At the same time, a sewer pipe must first be laid in the foundation wall to drain water. Through it, water will enter the septic tank, sewer pit or other sewer device.
Next, you need to make a backfill of sand and gravel 15 cm high and compact it.
Then insulation is made with expanded clay. Layer height - 150-200 mm, depending on the climatic conditions of the region. At the same time, do not forget to make a slope towards the drain.

Heating system installation

After preparing the base of the floor in the bath, you can start laying the heating pipeline:

First, waterproofing is laid from two layers of roofing material. The joints are glued with mastic. The direction of laying strips in layers is mutually perpendicular.
Now the floor is covered with heat-insulating material. At this stage, also do not forget about the slight slope of the floor towards the drain.
A reinforcing mesh is laid to protect the insulating layer.
Pipes of the floor heating system are laid on top of the grid.

Important: copper or metal-plastic pipes can be used for water heating.

After connecting the pipes and checking the correct operation of the system, you can pour the screed.
Before pouring the screed around the perimeter of the room, a damper tape is mounted to prevent temperature deformations of the floor. For screed, you can use the usual cement-sand mortar, reinforced with fiberglass, or ready-made dry mixes.
The screed is poured and leveled over the beacons. In this case, the floor should have a slight slope towards the drain hole.
After the screed has completely hardened, you can start laying the floor covering.