Warm floor from the stove. How to make a water heated floor in a bath from a stove and a boiler? What materials need to be purchased

Decor elements 04.03.2020

Decor elements

The efficiency of using water-heated floors in the house has led many to think: is it possible to make floor heating in the bath from the stove? What are the features of such an undertaking, what will have to be taken into account and how this can be implemented - these are the nuances of the previous question.

The warm floor in the bath will have a hot coolant due to the peculiarities of the burning intensity of the furnace

System features

The first feature is that the furnace acts as a boiler, so you need to equip a heat exchanger above the furnace. To do this, you can use a regular metal tank. From it the tank will go all the contours to the necessary premises.

In order for the cooled coolant to circulate through the system, it is necessary to equip it with a pump. Without the use of a pump, the coolant will circulate through the pipes only if the furnace level is below the floor. Also, for natural circulation, pipes with a large diameter (24 mm) should be used, and a smaller diameter (16 mm) is usually used. But even these measures will not be able to ensure effective circulation.

Important! The boiler heating system allows you to adjust the temperature regime, and with a furnace it is more difficult to arrange this. For a comfortable state of the flooring, you need to heat the coolant by 40-50 degrees, and the sauna stove brings the water to a boil.

In addition, the bath does not always have a temperature above zero if heating is not maintained in it. In this case, you will have to use antifreeze as a coolant, and separate the system from the general water heating system.

A wood-burning stove will not be able to circulate water, so they make a tank as a heat exchanger. The heat circulation scheme is shown in the picture.

It will not be possible to install a large heat exchanger, so a battery tank must be used. It is connected to the system with steel pipes, while on the base it is necessary to equip a heat-insulating layer to prevent heat loss.

Advantages and disadvantages of arranging a warm floor in a bath

Arrangement in the bath of a system of water-heated floors provides the following advantages:

Absence of electromagnetic waves, as occurs when using electric heating systems.
Comfortable conditions. Often the floors in the bath are cold, which brings serious discomfort and can cause colds.

Warm floors are especially beneficial in the dressing room, so as not to get sick

Health safety. An environmentally friendly product is used as a heat carrier, therefore there is no harm to health.
Heating savings. Since circulating water acts as a heater, you can achieve good savings on solid fuel to create a comfortable microclimate.

But this system has serious drawbacks and difficulties with the implementation of reliable operation:

In winter, you will have to drain the water so that the pipes do not crack when expanding due to freezing. To do this, it will be necessary to provide a complete drain system, which is not very convenient and economical in terms of water consumption. Perhaps the solution to the problem is the creation of positive conditions, but constantly heating the stove is also not very convenient. It will be more cunning to use antifreeze water together.
To heat the coolant, a certain amount of heat will be required, which will be taken from the heat to heat the steam room and the washing area.
Complicated installation. You will have to implement a complex scheme covering the entire room and passing under the floor.

A drain hole will need to be provided in the bath floor so that moisture does not destroy the heat-insulating material, but goes into the ground behind the bath wall

It will be necessary to provide leak-proof floors so that moisture cannot destroy the thermal insulation material.

As you can see, the pleasant moments of using a warm water floor require solving problems of increased complexity. It is necessary to take into account many factors, therefore it is necessary to dwell in detail on the process of arranging the floor pie and the heating system.

Arrangement features

You can use the following types of floor arrangements that can be combined with a heating system:

Concrete screed. It is the best option because it allows you to save on materials. Concrete is characterized by a high degree of moisture resistance. However, operation is possible only after the screed is completely dry. For this you need to wait 4-6 weeks. There is another negative feature: it will be difficult to determine the places of leakage in the system.
Polystyrene board. Not quite a standard type of base for a bath, but very effective when used with a heating system. Especially with a foil surface, they allow good protection against convective and radiated heat. But on top you will still need to use a concrete screed.
Laying under wooden floors. You can go the easier way and organize the heating of the floorboards directly. To do this, holes are made in the logs for pipes. The advantage is that the maintainability of such an arrangement of heating is many times higher.

An example of how a warm floor made passes under the floorboards and in the lag system

Important! Expanded polystyrene, mineral wool or expanded clay can be used as a layer to protect against heat loss.

How to make floor heating in the bath

For example, let's focus on one of the possible ways to create a warm water floor with a concrete screed and a heat-insulating layer. The whole structure will consist of the following layers.

waterproofing layer. Designed to prevent the accumulation of condensate on the floor during heating.
Thermal insulation layer. Needed to protect against heat loss.
reinforcing layer. Protects thermal insulation material from mechanical stress.
Foil sheet. Allows you to increase the efficiency of heating due to the reflection of heat radiation.
Contour of the pipeline in a spiral form.
Concrete screed. Allows you to lay on top of the floor covering. In this case, the location of the drain hole must be taken into account.
Finish flooring. You can use ceramic tiles.

Preparatory part of the work

Before equipping the heating circuit, it is necessary to take care of the drain system, because the floor must be non-leaking. To do this, do the following:

Remove the soil by 30–40 cm. Make a dig under the foundation and a trench in order to stretch the pipe into the sewer. Bury the pipe with an equal distribution of sand. At the same time, before laying the pipe, ram the trench.
Backfill with crushed stone 15 cm and tamp it down.
Make an insulating layer of expanded clay with a thickness of 15–20 cm. At the same time, care must be taken that there is a slight slope towards the open end of the sewer pipe.

Heating system installation

Scheme of how to equip a screed with underfloor heating and heating with conventional stoves

After the preparatory part of the work is completed, you can proceed to the direct implementation of the heating system:

Lay two layers of waterproofing with overlapping rolled roofing felt and seal the joints with mastic.
Lay insulating material. At the same time, it is necessary to maintain the formed slope.
Strengthen the heat-insulating layer with a reinforcing mesh.
Lay the pipes, forming a spiral contour for uniform heating.
Connect the pipes to the common system and check the operability of the system.
After the test "launch" is made, you can pour the concrete screed. It needs to be free to expand. To do this, a damper tape is laid along the contour of the room.
The screed is poured and leveled along the beacons, which are previously set in compliance with the slope to the sewer.
After the screed is completely dry, you can proceed with the installation of the finishing floor covering.

It turns out that it is real to equip water heating in the bath. In this case, it is possible to use a conventional furnace as a heater, to which a collector is additionally connected to heat the coolant and a heat exchanger is mounted above the furnace.

How to make a warm water floor and radiators in the bath with your own hands:

In the past, baths were heated only by stoves. The floors were equipped with wood, and sometimes they were earthen. Accordingly, in such baths there was not even a question of warm floors. Why they didn’t think of equipping baths with warm floors earlier is unknown. But as for our time, today there are many technologies that allow you to organize floor heating. This article will discuss the methods for making underfloor heating, and you will also learn how to make a warm floor in a bath.

To equip the floor with heating from the stove, you will need to install a metal shirt. Its appearance can be described as follows: a central pipe is laid, and branches go from it in different directions, forming a skeleton. Each branch is connected by pipes, forming a closed system. This design is installed inside the furnace directly above the firebox. Water circulation can be natural or forced (a circulation pump is used).

The shirt, to some extent, plays the role of a boiler. The coolant is heated in it and supplied through a system of pipes laid in the floor.

In addition to arranging the shirt, you will need a thermal (buffer) capacity. Its installation is carried out outside the furnace, and is connected to the jacket with a metal pipe. The volume of the buffer tank can be from 100 to 1 thousand liters, it is calculated from the power of the boiler. If there is a coolant with a volume of more than 100 liters in the heating circuits, then there is an arrangement option without a thermal tank. If you want to create a natural circulation of water, then mount the buffer tank and the shirt on the same level. The circulation will be carried out due to the temperature difference of the coolant.

What is the key role of the buffer capacity? Its presence allows you to prevent boiling water in the system. It is for this reason that the container should not contain less than 100 liters of water. Even if the existing boiler has a low power, and the heat capacity is only 20 liters, then when the boiling point of water reaches 100 ° C, the coolant will boil in 5 minutes. For this reason, the buffer tank is an integral part of the entire system.

If the jacket is mounted below the jacket level, natural circulation will not be possible. A circulation pump will need to be installed.

It will be problematic to organize a warm floor with natural circulation, because you will need to take the boiler room outside the bathhouse. Why? Since the heat exchanger must be below the floor level of the bath. For this reason, a warm floor from a stone stove is easier to make with the forced movement of the coolant, namely with the installation of a circulation pump. It is installed on the outlet, where the coolant is supplied to the pipe circuits from the buffer tank. Thus, water is circulated, where the cooled water is sent back to the heat capacity, warmed up and returned to the heating circuit.

Such warm floors can be made with natural circulation. However, the pipe system laid in the floor must be above the level of the heat exchanger, and the pipes must be at least Ø 1″ (2.4 cm). As a result, it turns out that heat will be supplied to the bath through a pipe that is brought up. The effectiveness of this method of heating will depend entirely on the size of the oven.

In principle, this technology can be implemented in a bath. But it is important to understand that it will take a large amount of heat from the combustion of fuel. As a result, it will be unrealistic to achieve a high temperature inside the room.

Other methods of arranging underfloor heating in the bath

There are more modern and no less effective technologies for arranging underfloor heating. For example, using a gas or electric boiler. The coolant will also be water. There is an option for arranging a warm floor due to electricity. The electric warm floor has a high degree of protection, as a result, it does not pose any danger to people. This method is used to heat the floor even in the washing room.

When arranging the floor in the bath with electric heating, it is important to ground it. Without it, it is forbidden to put into operation electric heating.

When laying an electrical cable or mat in a screed, care must be taken that under no circumstances can moisture penetrate there. The service life of an electric underfloor heating can reach 30 years. This is possible subject to the technology of its installation.

Polymers, which act as an insulator of electrical heating, are destroyed only due to the influence of sunlight on them.

If you are building a bath from scratch, then you can provide a relative warm floor by laying a tree on it. If you want to use a forced circulation water floor heating system, then pouring a concrete screed is ideal. Ceramic tiles will be laid on top of it. Pay attention to the fact that the heating cake, which includes the screed, should not be a single part of the foundation. Why? When heated, concrete tends to expand. And if the underfloor heating screed is made integral with the foundation, during expansion, destructive pressure will be exerted.

When arranging the screed along the perimeter of the room, a damper tape is laid. It will compensate for thermal expansion.

Some, in order to save money, decide not to lay the thermal circuits in the floor of the bath. They lay a pillow of sawdust or foam plastic and a layer of waterproofing between the lags. While such floors will certainly be warmer, there is a downside to the coin. There is always high humidity in the bath. Therefore, there is a high probability that after a while moisture will begin to penetrate through the waterproofing and between the floor boards into the insulation layer. Due to the high humidity, the moisture that has fallen into the insulation will remain there. As a result, this will provoke rotting of the boards. To restore the floors will require a lot of money. Therefore, in most cases, it is better to immediately pay and build a reliable floor heating in the bath at the beginning of its construction.

? To answer this question, it is enough to compare the systems from the angle of efficiency. As practice shows, installing an electric heated floor over the entire area of \u200b\u200bthe bath is expensive. You will feel it especially when you have to pay for electricity. If we start only from this factor, then the thermal energy of the sauna stove can be used for a steam room, and in other rooms, electric heating can serve as an additional source of heat. Such a floor can be included as needed.

When arranging floor heating with only a jacket and a buffer tank, constant heating is required in winter. Otherwise, the system will simply freeze. Plus, the cost of purchasing firewood or gas is added to this.

So, to summarize, each of the systems described in this article is relevant and has the right to life. So, the organization of heating from a stove, electricity or a gas boiler is quite real. It is very important to follow the installation rules. In this case, floor heating will last more than one year in full working order. It will be interesting for us to know how you equipped the heated floors in the bath. If you know how to properly carry out certain work, then write comments at the end of this article. Perhaps you can help other craftsmen to do the installation of a warm floor with their own hands, without the involvement of qualified specialists.

Video

Below is a video from which you can learn the features of making a warm floor in a bath based on infrared heating:

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 storage 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	disadvantages
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.

Name	Advantages	disadvantages
Concrete screed is ideal for a bath. Filling is simple and does not require special skills.	It 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.

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 the washing room and tamp 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

Warm air tends to rise upwards with convection currents. Therefore, even in the bath, the floors are often cold. The contrast between hot air and an icy floor is a sure way to catch a cold.

Most often, electric floors are made in baths (): it is easier, and since the bath room is not used every day, the energy consumption is not too large ().

If there is a stove, you can try to make a water circuit from it. How to do in the bath from the stove?

When the furnace is used instead of the boiler (), a heat exchanger is placed above the furnace.

In this capacity, you can use a tank or a register (a lattice of pipes). From it they make wiring throughout the building.

For a device from a stove in a bath, a circulation pump () is needed, otherwise the cooled coolant will not flow back into the heat exchanger.

You can do without a pump only in one case: if you place the stove below the floor level. Then the system will be able to work on natural circulation.

For natural circulation, it is necessary to increase the diameter of the pipes (at least 2.4 centimeters, usually warm floors are laid with a metal-plastic pipe 1.6). But, given the large length of the underfloor heating circuit, circulation without a pump, even with thick pipes (), will be slow and inefficient.

The scheme of the warm floor in the bath from the stove (not only in the bath, in the house too) looks more complicated than the heating system with radiators. In modern boilers, the heating temperature can be adjusted, in the furnace - no.

The temperature of the warm floor should not exceed 40 degrees (optimally - 30), and on the stove it will be heated to a boil. Therefore, in addition to the pump, you will also need a mixing unit.

When installing several circuits for different rooms, a collector () is installed between the boiler and the floor. Valves with thermal heads, two- or three-way valves are connected to it. If possible, a servo. These devices will allow you to adjust the work of the floor.

Because as a rule, it is impossible to place a large-sized heat exchanger in the furnace; an accumulator tank is installed next to it and connected to the heat exchanger with metal pipes.

The volume of the tank depends on the area of the heated room and the heat transfer of the furnace, but not less than 100 liters. The tank serves as a buffer: constant water exchange between the storage tank and the boiler prevents the coolant from boiling.

Cons and features of the water circuit in the bath

The bath room is used intermittently. For the winter period, the water will have to be drained, because. otherwise it will freeze, and this will lead to a rupture of the pipes. Or you need to heat in the winter in a constant mode.

But then wood heating will cost more than an electric boiler or electric floor. Therefore, if you plan to operate the bath all year round, antifreeze should be used instead of water. In this case, it will no longer be possible to combine heating and hot water.

The second disadvantage of such a system is that most of the heat is spent on heating the battery tank. For its main purpose (heating the steam room and washing room), the stove does not work efficiently, and the floor itself heats up more slowly than under standard conditions.

If you plan to lay a warm floor in a bath from the stove in several rooms (steam room, dressing room, rest room, shower room), the volume of coolant will be larger, and this will further increase the warm-up time.

The classic design, in which water goes into the pit through the cracks in the floor, cannot be installed: the insulation will get wet, and when wet it is not functional.

When installing underfloor heating, the drain is organized differently: they make a ramp and dig a well for water in the lowest corner of the room. A pipe is built into the wall of the well, which drains water into the gutter or just outside.

For the same reason, it is recommended to put a warm floor in wet bath rooms with a screed () under the tile: it is impossible to make a completely airtight boardwalk.

Wooden flooring can be laid in the dressing room and rest room. But it should be remembered that wood is a good heat insulator. This means that it will take even more time and energy to fully warm the floor.

Water floor installation

Pie () for the floor in the bath is laid in the same way as in the house:

waterproofing;
insulation;
reflective foil;
pipes (for water floors, the optimal laying pattern is a spiral, since it heats the floor evenly);
screed with a slope towards the drain and topcoat.

If the installation is carried out on the ground, before laying the waterproofing, it is necessary to pour a sand and gravel cushion or a layer of expanded clay.

In dry rooms, you can do without a screed:

choose profiled mats as a heater (), lay the pipes in the channels, and on top - the finish coat;
use chipboard with milled channels;
lay pipes between the lags.

findings

It is up to the owner to decide how expedient it is to make a warm floor from the stove in the bathhouse.

Many homeowners resort to compromise options: they install electric floors in the locker room and recreation room, and where there is a stove (steam room, washing room) they are limited to a simple plank floor, which is rarely truly icy.

Video about the water warm field in the bath.

Heated floors among all heating systems are very popular these days, due to their technical characteristics. For some residential buildings, you have to purchase electrical systems, but the owners of solid fuel stoves are more fortunate, since they can equip water contour heating.

Underfloor heating from stove heating in a wooden house is a great way to make the room temperature more comfortable and evenly distribute it over the entire area. The element that heats the heat carrier, in a specific embodiment, is a furnace, and there is no need to install a boiler.

Features of the floor heating system with water from the stove

A heat exchanger must be installed directly above the furnace, because the furnace will act as a heating element. For these purposes, an ordinary metal tank or welded pipes are suitable. It is from him that the system of water floor heating in all rooms will be laid.

Based on the fact that it will not work to mount a large-capacity heat exchanger in an ordinary stove, it will be necessary to build a storage tank next to the stove, which is connected to the heat exchanger. To prevent heat from escaping from the room through the base of the floor, foil thermal insulation is laid on it, effectively reflecting energy and helping to normalize the temperature.

In addition, you will need a pump to return the chilled liquid back to the heating tank. The only exception is stoves that are below floor level.

Attention! The auxiliary pump is installed on the common return, and not on the cycle that does not warm up well. If you install the pump separately on any of the wings, then the water will circulate in a small circle.

The normal temperature for a warm floor is 40 ° C, and a brick oven, unlike a specialized boiler, does not have an automatic regulator, so the indicators can differ significantly from the norm. Therefore, in addition to the circulation pump, it will be necessary to install a mixing unit.

If it is necessary to install several circuits for different rooms, a collector is mounted between the boiler and the floor surface, to which valves with thermal heads and two- or three-way valves are connected in order to freely regulate the operation of the system.

Advantages and disadvantages of the system

A warm water floor in a wooden house under a screed from the stove is characterized by the following advantages:

Fuel economy, ease of maintenance and installation.
The contour is mounted inside the screed without reducing the usable area.
Environmental friendliness.
High heat transfer at relatively low energy costs.
Uniform heating of the room, no cold zones.
The possibility of heating several rooms at once from one boiler or stove.
Long service life.

The disadvantages of the system include the following points:

For rooms with a large quadrature, a large volume of coolant is required, so it will take a lot of time to heat it up.
If a wooden house is located outside the city and is used as a summer residence, and not for permanent residence, then it is imperative to drain the water before leaving, otherwise frozen water can break pipes during severe frosts.

Tip: To protect the system from freezing, you need to use polyethylene pipes and pour water into them with the addition of antifreeze. They should be laid at a distance of 20-25 cm so that there are no warm and cold areas.

Types of device and materials used

The layout of the warm floor from the stove in a wooden house can be carried out in several ways:

On a concrete screed - this is the cheapest, most reliable and moisture resistant method. With it, you can reduce the cost of building materials and work does not require practical experience. The negative qualities of this method include the duration of the process - the floor becomes ready for use only a month after pouring. In addition, if the pipeline is damaged, it will be problematic to determine the location of the leak without dismantling the entire coating.
On a coupler with use of the polystyrene plates having factory ready dredging for fixing of heating pipes. They are distinguished by ease of installation and a reflective layer of foil material to retain heat.
On a wooden base. Laying on logs is considered the most time-consuming process, requiring accurate calculation of the locations of holes for laying the pipeline. On the other hand, the maintainability of such floors is much higher.

Tip: The height of the insulating layer (mineral wool, expanded clay, expanded polystyrene or polystyrene) should be 15-20 cm - this factor depends on the climatic conditions of the region.

The device of a warm water floor from a stove in a wooden building

Water floor heating consists of the following layers:

Waterproofing. It prevents condensation from settling on the structure.
The thermal insulation layer prevents heat from escaping from the room through the bottom.
Reinforced mounting mesh to protect insulation materials.
A layer of thick foil to reflect heat.
A pipeline laid out in a snake or spiral for uniform heating of the surface.
Screed for alignment.
Finish coating.

In some cases, when it is necessary to lay the floor directly on the ground, a “cushion” of gravel and sand is compacted in front of the waterproofing layer and an expanded clay layer is poured. This is necessary to create additional thermal insulation conditions.

Heating system installation

Any work on laying a warm floor, like other options, should begin with the preparation of a rough surface. It must be cleaned of old worn coatings, tamped or sanded to bring it to a perfectly even condition. The difference of the base in one room in height should not be more than 0.2 cm.

After preparation, you should start laying the heating pipeline:

To begin with, as a waterproofing, roofing material is laid out in two layers perpendicular to one another. The joints of the sheets are carefully glued with mastic.
The second step is to lay the thermal insulation material and cover it with a mesh.
Pipes are laid directly on top of the grid.

After connecting the pipes to the system and checking it for faults, the screed is poured. For this, a cement mortar with reinforced fiberglass or diluted ready-made dry mixes is usually used.

The screed is evenly poured and leveled. Cement during the drying process may slightly change its volume, therefore, to prevent deformation of the finished coating around the perimeter of the room, a damper tape should be glued before pouring.

After complete solidification (the drying process lasts about thirty days), you can start laying facing materials.

The method of floor heating using water from the stove is a simple method that, with the right approach and following all the recommendations, will save money on the purchase of a heating boiler and electricity costs.