- 1 How to make a Radiant Floor Heating
- 2 Radiant floor with your hands: the complete guide for installation of pipes and screed
- 3 Radiant floor with their hands
- 3.1 Apparatus water underfloor
- 3.2 Advantages and disadvantages of water system
- 3.3 The main varieties of warm water floor
- 3.4 water underfloor heating installation technology
How to make a Radiant Floor Heating
In areas where heating is done by floor heating technology, feel more comfortable than traditional radiator system. When floor heating, the temperature will be distributed optimally: warmest legs, and head over to the cool level. Two methods of heating: electric and water. Water is more expensive to install but cheaper to operate, so that it is more likely to make it. Slightly reduce the installation costs can be, if you make the water warm floor with their hands. Technology is not the easiest, but also does not require encyclopedic knowledge.
The distribution of heat fluxes at various heating systems
For water heating underfloor pipe system is used in which the coolant circulates. Most often, the pipe is filled in a coupler, but there is a mounting system for dry - wood or polystyrene. In any case, there is a large number of small-section pipes laid under the floor.
Due to the large amounts of water heating pipes made mainly in private homes. The fact that the heating system of high-rise earlier construction is not designed for this method of heating. Make a warm floor from heating is possible, but it is likely that either you will be too cold, or the neighbors above or below - depending on the type of powering the system. Sometimes whole becomes cold sprue: water hydraulic resistance floor several times higher than the heating radiator system and may plug the movement of the coolant. For this reason, to get the permission of the management company for the installation of underfloor heating is very difficult (installation without a permit - an administrative offense).
Radiant floor assumes a large number of small diameter pipes
The good news is that the new buildings began to make the two systems: one for radiator heating, the second - for the water floor heating. In such houses and authorization is required: the corresponding system was developed in view of higher hydraulic resistance.
To understand, you need to make the water warm floor with your hands, you need to understand is what is in the system and how it works.
Adjusting the coolant temperature
To feet on the floor was comfortable temperature should not exceed 40-45 ° C. Then the floor is warmed up to a comfortable value - about 28 ° C. Most of the heating equipment to issue such a temperature can not be: at least 60-65 ° C. Exception - condensing gas boilers. They show the maximum efficiency is at low temperatures. They exit the heated coolant can be supplied directly to the underfloor pipe.
When using any other type of boiler needs mix with the node. It hot water from the boiler is added to the cooled heat transfer fluid from the return line. The composition of this UzA you see on the circuit connection of floor heating to the boiler.
Driving device water underfloor
The principle of operation is as follows. The heated coolant is supplied to the boiler. It falls to the thermostatic valve, which when exceeding a threshold temperature, opens mix with water from the return conduit. The photo has a jumper before the circulation pump. It establishes a two-way or three-way valve. Opening it up and mixed into the cooled coolant.
The mixed flow pump through the circulation gets on a thermostat that manages the thermostatic valve. Upon reaching the desired temperature of the return water supply stops when exceeding opens again. Since the flow temperature regulation takes place of the warm water floor.
Further coolant gets on the Manifold. If water Heated floor is made in a small room (bathroom, for example) wherein only one loop is laid from the pipes that node may not be. If several loops, between them need to somehow distribute the coolant, and then he somehow gather and send in the return line. This task and performs manifold valve or, as they are called, underfloor heating manifold. In fact, this two pipes - on the flow and return pipes, which are connected to the inputs and outputs of all floor heating circuits. This is the easiest option.
The mixing of floor heating to automatically maintain the temperature
If floor heating is made in several areas, it is best to put the collector with adjustable temperature. Firstly, in different areas require different temperatures: some prefer the bedroom + 18 ° C, one needs to + 25 ° C. Secondly, most of all, the contours are different lengths, and can transmit different amounts of heat. Thirdly, there is a space "inside" - which leaves one wall on the street, and there are corner - with two or even three exterior walls. Naturally, the amount of heat they should be different. Provide it with the comb thermostats. The equipment is not cheap, the circuit is more difficult, but this setting allows you to maintain the desired temperature in the room.
Thermostats are different. Some control the room temperature, the second - the floor temperature. Type choose yourself. Regardless of this, they manage servos mounted on a comb feed. Servomotors depending on commands increases or decreases the flow cross section by adjusting the flow rate of coolant.
Theoretically (and almost the case) may be situations where the supply to all circuits will be blocked. In this case, the circulation stops, the boiler can boil and damage. To avoid this, be sure to make a bypass through which a portion of the coolant. In this arrangement, the boiler safety system.
View one of the system options can be in the video.
One of the key components of the system - the pipe and locking system. There are two technologies:
- Dry - polystyrene and wood. In the system of polystyrene mats or wooden plates stacked metal strip with molded channels for laying pipes. They are necessary for a more uniform heat distribution. Pipes are inserted into the recesses. Stacked on top of a hard material - plywood, OSB, gypsum fiber board, etc. On this foundation can be laid floor covering soft. Can be laid tile on tile adhesive, parquet or laminate.
Wooden floor heating system water
Radiant Floor screed
Both systems are imperfect, but cheaper is the laying of pipes in the screed. Although she has a lot of disadvantages, it is because of the lower cost and more popular.
At a cost of more expensive dry system: components (if we take the ready, factory) worth more. But they weigh much less and put into operation faster. There are several reasons why it is necessary to use them.
First, the big weight tie. Not all foundations and floors of houses can bear load of water underfloor heating in concrete screed. Above the surface of the pipes should be a layer of concrete is not less than 3 cm. Considering that the outer tube diameter is also of the order of 3 cm, the total thickness of the screed 6 cm. Weight obtained over considerable. A top still frequently tiles on the adhesive layer. Well, if the foundation is designed with a reserve - he will stand, and if not - start problems. If there is a suspicion that the overlap or foundation will not tolerate stress better make wooden or polystyrene system.
Second, low maintainability of the system in the screed. Although during laying of floor heating loops it is recommended to lay only whole bay tube without joints, damaged pipes periodically. Or at repair were a drill, or burst due to marriage. The fault location can be identified by the wet spot, but the repair is difficult: it is necessary to divide the screed. This may damage the adjacent loops of which the damage zone becomes larger. Even if you managed to do accurately, it is necessary to do a two-seam, and they - the potential location of the next damage.
The process of mounting the water underfloor
Third, commissioning warm floor screed is only possible after the concrete attains 100% strength resource. It takes at least 28 days. Until then, you can not include floor heating.
Fourth, you have a wooden floor is made. Sore upon itself on the wooden floor - not the best idea, and another tie with fever. Wood quickly destroyed, the whole system will collapse.
Causes severe. Because, in some cases, more appropriate to use dry technology. Especially that a wooden radiant floor heating costs with their own hands and not so expensive. The most expensive component - the metallic plate, but also can be made of thin sheet metal and better - aluminum. It is important to be able to bend, molding grooves for pipes.
Option polystyrene floor heating system without ties shown in the video.
Materials for warm water floor
More often than not make the water warm floor screed. Its structure and the necessary materials will be discussed. Warm water floor scheme is shown in the picture below.
Scheme Warm water floor screed
All work begins with leveling base: without warming heating costs will be too high, and laid insulation can only be on a flat surface. Because the first thing the finished ground - do rough screed. Next, we describe step by step procedure works and the materials used in the process:
- Along the perimeter of the room rolled and damping tape. It is a strip heat-insulating material not thicker than 1 cm. This prevents heat losses for heating the walls. Its second task - to compensate for thermal expansion which occurs when heating materials. The tape may be special, and can be laid still sliced thin foam strips (not thicker than 1 cm), or other insulation of the same thickness.
- On rough screed laid layer of thermal insulation materials. For the device warm floor is the best choice - polystyrene. Best of all - extruded. Its density shall be at least 35 kg / m 2. He was tight enough to support the weight of the screed and operational loads, has excellent characteristics and long OPERATE. Its drawback - it is expensive. Other, cheaper materials (foam, mineral wool, expanded clay) have many shortcomings. If you have the opportunity - use styrofoam. The thickness of the insulation depends on many parameters - the region, material characteristics and basement insulation, method of organizing subfloor. Because it must be calculated for each case.
- Further often put reinforcing grid in increments of 5 cm To it also tied the pipe -. Wire or plastic ties. If you used a polystyrene foam, you can do without reinforcement - can be fixed by special plastic brackets, which are driven into the material. For other insulation reinforcement mesh is required.
- Set on top of the lighthouses, then poured screed. Its thickness - at least 3 cm above the pipes.
- Next Finish flooring is laid. Any suitable for use in floor heating system.
These are all underlying layers that need to be laid when making your radiant floor heating with his hands.
Pipes for floor heating circuit and styling
The main element of the system - the pipe. The most frequently used polymer - XLPE or metal and plastic. They are well bent, have a long life. Their only obvious lack of - not too high thermal conductivity. This minus not have recently appeared corrugated pipes made of stainless steel. They bend better, they are not expensive, but due to the small famous until used infrequently.
The diameter of the pipes for floor heating depends on the material, but usually it is 16-20 mm. They are stacked on several schemes. The most common - and a spiral snake, there are a few modifications that take into account some of the features of premises.
Scheme warm water pipe laying floor
Laying snake - the most simple, but the passing coolant through the pipes gradually cools and reaches the end of the loop is already considerably cooler than it was at the beginning. Because the zone, which receives coolant is warmest. This feature is used - stacking begins with the coldest zones - the outer walls or under the window.
This shortcoming is almost devoid of a double helix and the snake, but they are more complicated in the packing - it is necessary to draw a diagram on paper, to avoid confusion during installation.
It can be used for pouring water underfloor conventional cement-sand mortar based on Portland cement. Brand portland cement should be high - M-400 and M-500 is better. Mark concrete - not less than the M-350.
Semi-dry screed for underfloor heating
But conventional "wet" ties for a long time gaining its design strength: not less than 28 days. All this time include floor heating can not be: will crack, which may even break the pipe. Because more often use so-called semi-dry screed - with additives which increase the plasticity of the solution, significantly reducing the amount of water and time for "aging". They can be added alone or look dry mixture with the corresponding properties. They cost more, but less trouble with them: according to the instructions added to the required amount of water and stirred.
Radiant floor with their hands to make real, but it will take a decent amount of time and a lot of money.
Radiant floor with your hands: the complete guide for installation of pipes and screed
Now, many residents of private homes set for the primary or secondary heating radiant floor heating. It has many advantages: increases comfort, uniformly heats the room, requires no additional energy input (i.e. to the working of a boiler to the radiators..). Instructions in this article will make the installation of water underfloor heating, even with no experience. However, before this is worth exploring all the nuances.
Heated floor and topcoat
It is best to warm water floor system combines with the laying of a granite and tile.
- Firstly, both strong and durable material.
- Secondly, they do not emit harmful substances during heating.
- And third, a perfect complement to tile heating (material itself is cold), and it can even walk barefoot because of the high heat capacity.
Of course, the floor heating can be done under the laminate under the linoleum, PVC tiles and even a carpet, with a special mark.
But, for example, heating the carpet has no meaning, and can not exceed a surface temperature above 31 ° C, according to snip 41-01-2003. Otherwise, it will trigger the release of harmful substances.
Probably, many tenants have thoughts on their own connect "for free" water underfloor heating system central heating or hot water. And some even do that, but in most cases this is prohibited by local law.
For example, in Moscow there is a government decree number 73 PP of February 8, 2005, in the appendix №2 clearly written to ban conversion of public water supply systems for floor heating device.
Violating the rules, in the best case, you can get a fine at the first visit plumbers. And at worst - the risk of leaving neighbors without heating.
In some regions, the ban does not apply, but to connect the required examination, so as not to disrupt the system.
In general, from a technical point of view, similar embodiments are possible, but only in connection with a separate pumping and mixing unit and maintaining the system pressure at the outlet.
Note! If the jet pump (elevator) standing in an apartment building, do not use metal-plastic and polypropylene pipes.
There are several ways to arrange a warm water floor.
- The most popular and reliable of them - concrete screed. Unlike electrical species tube 16 mm in tile adhesive hide is impossible, and will not turn. Therefore poured screed at least 3 cm above the pipes.
- The second method - laying pipes in the grooves carved styrofoam. Grooves made by hand, placed inside the tube, then poured screed.
- The next option is often used in homes with a wooden floor, even though it requires a lot of effort - is laying in wooden slots. To this end, the floor was packed boards that create trough the desired shape for stacking.
For warm water floor fit three types of pipes.
- Pipes made of crosslinked polyethylene (PEX-EVOH-PEX) - inconvenient to work, because it is difficult to give them the desired shape (when heated they straighten). But do not fear of frost and maintainable.
- Plastic pipe - the best option: low cost, ease of installation, stably hold the form.
- Copper pipes - are expensive, when using a screed them need to be closed with a protective layer to prevent exposure to alkali.
Prior to installation and procurement of materials required to perform the calculation of floor heating. To do this, draw a diagram with contours, which will come in handy later during repair work, to know the position of the pipes.
- If you are sure, that in a certain place will always stand furniture or plumbing in this place the tube did not fit.
- path length of 16 mm in diameter should not exceed 100 m (maximum of 20 mm of 120 m), or the pressure in the system will be poor. Thus, each circuit occupies no more than about 15 sq. m.
- The difference between the length of several circuits must be small (less than 15m), i.e. they must all be of uniform length. Large rooms, respectively, are divided into several circuits.
- Optimal pipe laying step is 15 cm with good thermal insulation. If winter frosts are often below -20, the pitch is reduced to 10 cm (it is possible only at the outer wall). And in the north can not do without additional radiators.
- When stacking step 15 cm flow tubes is approximately 6.7 m per square space, when laying every 10 cm - 10 m.
In general, the question of how to calculate a warm water floor, requires separate consideration, that is to take into account when designing a set of nuances:.. Heat loss, power and so on..
The graph shows the flux density of the average temperature of the coolant. The dashed line indicated pipe diameter of 20 mm, and the solid lines - 16 mm.
The graph shows the data which are valid only when using cement screed 7 cm thick, coated with tiles. If the thickness of screed to increase, for example, 1 cm, the heat flow density is reduced by 5-8%.
- To find flux density, the amount of heat loss in Watts premises are divided into pipe laying area (subtract offsets from the wall).
- The average temperature is calculated as an average value at the input to the circuit and the outlet of the return flow.
The optimum temperature at the inlet and the outlet does not differ by more than 5-10 degrees. The maximum temperature should not exceed 55 ° C.
To calculate the length of the loop, the active heating area in square meters is divided into a step of laying in meters. This value is added bends size and distance to the collector.
According to this scheme, you can perform only a rough calculation and make the final adjustment due to the mixing unit and thermostats. For accurate designing sure to consult a professional heating equipment.
Technology stacking warm water floor consists of several layers which are stacked in sequence. Overall the cake thickness is 8-14 cm, load floors - to 300 kg / sq. m.
If the base - a concrete slab:
- Damper tape around the perimeter;
- reinforcing mesh;
- water floor heating pipe;
Waterproofing is permissible to use a conventional polyethylene film or special materials. Damping tape is made of chopped strands insulation thickness of 1-2 cm, or bought ready version with adhesive backing.
The choice of insulation depends on several factors: the region of the base material. For example, for floors on the ground are used and the extruded polystyrene foam thickness of at least 5 cm (optimally 10), and if a warm cap is under the floor of the first floor, it is possible to apply thinner versions of 3 cm.
The main purpose of insulation - direct heat from heating up and prevent a large heat loss.
If the base - the floors on the ground:
- backfill 15 cm;
- gravel 10 cm;
- sand 5 cm;
- roughing screed;
- Damper tape around the perimeter;
- extruded polystyrene of not less than 5 cm;
- reinforced screed with coolants.
Preparatory layers for roughing screed is important to carefully layered ram. When dense compacted base and using extruded polystyrene foam to make rough screed is not necessary.
Assume good foundation already prepared: smooth concrete slab or the filling layer without strong fluctuations. Differences should not exceed 7 mm when checking two-meter rail. If there are irregularities, they can be filled with sand.
Someone puts waterproofing underneath insulation, someone, on the contrary, the top, and some use here and there.
If you use extruded polystyrene, it almost does not need waterproofing, so its position is not so critical. But she did not give laitance to penetrate the seams between the insulation and the step plate and would further restrain the moisture from below.
If you fix it to the bottom of the heater, then fasten the pipe in the floor heating can be directly to the insulation. If waterproofing stele up, then for fastening pipes require laying the mounting grid.
Waterproofing laid overlapping on the wall 20 cm, and on top of each other. Joints glue tape for sealing.
If you bought a ready tape - just glue it on the perimeter. It usually has a thickness of 5-8 mm and a height of 10-15 cm. The height must be above the fill level, any excess is cut with a knife. If the tape is made with their own hands, be sure to glue or screws to fasten it to the wall.
Linear expansion concrete is 0.5 mm per meter when heated to 40 ° C.
Sheet insulation for warm water floor is laid with offset joints so that it was tightly connected.
The first layer of mesh reinforcement is usually laid on a heater and used as a base for mounting circuits and uniform heat distribution over the surface. A link between the mesh wire. To a nylon mesh to secure the pipe clamps.
The diameter of the grid rods of 4-5 mm and the cell size - depending on the step of laying pipe for convenient mounting.
Also, be sure to lay on top of the pipe reinforcement, t. To. Even when using it below the grid will give almost no effect if it is lying on the bottom. Or during pouring to put a grid on the stand, creating a gap.
Radiant floor heating can be laid in several ways, list them.
- Tightening clamp made of polyamide. Used for quick fastening pipes to the mounting grid. Flow rate - about 2 units per 1 m.
- Mounting of steel wire. It is also used for the installation to the grid, the flow is the same.
- Stapler and clips. Suitable for fast fixing to the pipe insulation. Consumption of clamps 2 pieces per 1 m.
- Fixing the truck. It is a U-shaped strip made of PVC, which serves as a base for laying pipes in it 16 or 20 mm. Rigidly fixed to the floor.
- Mats for warm water floor of polystyrene. Middle grooves tube fits between the bars.
- Distribution aluminum plate. Used for installation in wooden floors, it reflects and evenly distributes heat across the surface.
Application of different types of fasteners pipes
Tubes are placed with a space from the walls 15-20 cm Each circuit is highly desirable to do from a single tube without welding, and their length should not be more than 100 m pitch between the walls of the tubes is 10 cm, closer to the center -.. 15 cm.
Scheme laying of floor heating can be different, e.g., serpentine or spiral. In the outer walls are trying to take a step of laying more often or spend a circuit from the supply next to the cold walls. Example circuits for enhanced warming of external walls is shown in the photo, this option is best used in cold regions:
In other cases, usually laid contours spiral (volute) is a versatile option.
In areas with a high concentration of pipes, to avoid overheating the surface, some of them close heat-insulated pipe.
Metal-16 mm and 20 mm is easy to bend by hand, without the use of special tools. To bend the pipe exactly small corner radius and do not give it to crack, corners folded in several passes (Interception of hands).
At an angle of 90 ° it takes approximately 5-6 interceptions. This means, first, resting your thumbs, make small bend, then a little shift in the hands of the bending side and repeat the action.
Must be free of kinks in the pipes in areas of sharp turns.
Polypropylene pipe bend is much more difficult, because they spring. Therefore, they are heated to the bending or doing welding with the use of special fittings, but in the case of underfloor heating - just attach to the net, making the curves less sharp.
Mounting water underfloor nachinayutm connection with the first pipe end to the distribution manifold, and after laying the room immediately connect the return line (second end).
In most instances the contours are connected via the distribution unit. He has several functions: increasing the pressure in the system, temperature control, uniform flow in multiple paths, a combination with radiators.
There are a variety of schemes of connection to the boiler, which we wrote about in the article about pumping and mixing units: with manual adjustment, with weather automatics and autoregulation with the help of actuators and sensors.
Pipes connected to the collector by means of clamping fittings "cone."
When you have finished installing all the circuits required to carry out tests of pneumatic system for leaks. To do this with the help of the compressor is crimping. To test for a small household compressor with pressure of more than 6 bar. The system pressure is adjusted to 4 bar and leave it on all the time, to run the system.
Since the air molecules is much less water molecules will be possible to detect even small depressurization. In addition, water may freeze if you do not have time to connect heating and air does not become nothing.
Fill screed made only after the installation of all the circuits and hydraulic tests. It is recommended to use the concrete is not below the M-300 (B-22,5) with fraction 5-20 mm crushed stone. The minimum thickness of 3 cm over the pipe is not only to obtain the desired strength, but also for the uniform distribution of heat over the surface. Weight of 1 sq. m. screed at a thickness of 5 cm up to 125 kg.
When the thickness of the screed 15 cm or more under high loads require additional calculation of the thermal state.
By increasing the thickness of the screed, it takes more time to heat it to a certain temperature after switching on, but also increases the inertia of the system. The lower the thermal conductivity of the screed, the higher the temperature of the coolant is required to do.
Examples of the separation zone in large premises absence or incorrect position gaps temperature is the most frequent cause of failure screed.
Contraction joints made in the following cases:
- space has an area of 30 sq. m .;
- walls have a length of more than 8 m;
- length and width of the room differ by more than a factor of 2;
- over the expansion joints of constructions;
- the room is too izgibistuyu form.
To do this, on the perimeter seams are laid damping tape. In place of the weld reinforcement grid must be divided. The deformation gap should be at the base of 10 mm. The upper part is treated with sealant. If the room has a custom shape, it must be broken down into simpler elements of rectangular or square shape.
If the pipes pass through the expansion joints in the screed, in those places where they are conveyed in a corrugated tube the corrugations of 30 cm in each direction (according to SP 41-102-98 - 50 cm on each side). It is recommended not to share one circuit expansion joints, it must pass through the supply pipe and return pipe.
Proper flow paths through technological joints
When laying tiles on the expansion joints more likely it unstuck because of the different expansion of the adjacent plates. To avoid this, the first part is placed on tile adhesive and the second part is attached to an elastic sealant.
For additional separation can use expansion joints of incomplete profile. They are made using a trowel, to a thickness of 1/3. After hardening of concrete and sealed with sealant. If they pass through the tube, they are also protected by the flexi hose.
Enough frequent phenomenon - the appearance of cracks in the screed after drying. This can cause a number of reasons:
- Low density insulation;
- poor sealing solution;
- the absence of plasticizers;
- too large thickness of the screed;
- the absence of contraction joints;
- too rapid drying of concrete;
- incorrect proportions solution.
Avoid them is very simple:
- insulation need to use higher density of 35-40 kg / m3;
- Ties solution must be ductile during installation and with the addition of fiber and a plasticizer;
- in large rooms must be done contraction joints (see below).
- also can not give concrete quickly grabbed for that it is covered with plastic wrap for the next day (a week).
For underfloor heating have to use a plasticizer to improve the flexibility and strength of the concrete. But you need to use special types of non air-entraining plasticizer for underfloor heating.
Without experience to make a cement-sand screed for underfloor heating without gravel / gravel does not work, and the right-grade DSP will cost more concrete factory. Therefore, to avoid cracking due to violations of the solution composition, fill it with concrete rubble.
A solution of M-300 cement grade M-400 of washed sand and gravel is in the following proportions.
- The mass composition of C: D: Hi (kg) = 1: 1.9: 3.7.
- Volume composition to 10 liters of cement P: Hp (k) = 17:32.
- From 10 liters of cement obtain 41 liter of solution.
- The volumetric weight of this concrete M300 amount 2300-2500 kg / m3 (heavy concretes)
Also, there is another embodiment using granite dropout instead of sand, to its preparation, the following elements:
- 2 buckets fraction 5-20 mm crushed stone;
- 7-8 liters of water;
- superplasticizer JS1 400 ml of solution (1.8 L powder diluted in 5 liters of hot water);
- 1 cement bucket;
- 3-4 buckets dropout granite 0-5 mm fraction;
- Bucket volume - 12 liters.
Qualitative concrete must not give off water during laying (delaminate). If done correctly and the air temperature 20 ° C, it has started to set after 4 hours and after 12 clock will be not leave traces on the heels.
3 days after screed pick up half of its strength and hardens completely after 28 days. It is not recommended to include the heating system up to this point.
The tree is not so effectively conducts heat, unlike concrete, but mounting it is also feasible. For this purpose the distribution plate of aluminum. Tubes are placed into wooden grooves made by attaching pre-arranged boards.
For mounting of linoleum, carpet and other materials that require flat surface is laid over pipes leveling layer of particle board, plywood or gypsum fiber. If the topcoat will be used parquet or a laminate floor heating construction can be slightly simplified, without a leveling layer.
When choosing plywood and particle board, make sure that they are hygienic and thermo-mechanical indicators to use them together with heated floors.
The price of a warm water floor is formed of several components:
- cost of materials (pipes, insulators, fasteners, etc...);
- value pump-mixer unit and the collector;
- work on alignment of the base and fill the upper tie layer;
- underfloor installation costs.
The average price of water underfloor heating installation under "turnkey" together with all the materials and the work will cost around 1500-3000 rubles .. per 1 sq. m.
Below is an exemplary estimates for house 100 sq. m., but the price of water underfloor heating is strongly dependent on the region, so it is best to drive to their data and make an independent calculation. It's not taken into account the cost of installation and the purchase of radiators, boilers, finishing coat and tie.
Installation of heated floors water is shown in the video:
How to solder polypropylene pipes and fittings. The necessary tools for the job, and instructions on how to make a homemade welding machine for polypropylene.
Using the collector circuit connecting underfloor heaters and one boiler. Technology Description, pumping and mixing circuit nodes.
It can be laid on a warm laminate flooring, and whether it is harmful? Can I use it for heating without radiators? Technology of correct folding, choice of substrate.
RemBoo »Installation and repair of the floor in the apartment" Radiant floor with your hands: the complete guide for installation of pipes and screed
All write: to lay a grid over the pipes properly, but the illustrations show the contrary. And while no one says, how to walk on a grid under which the pipe during casting!
Do not go it is necessary, and fly))) Like a bird
And if I have the cake base: 10 cm reinforced screed, then 10 cm and over 10 Penoplex ties ... Do I need to enclose a plate heater or even be enough waterproofing foil with a reflective effect for the pipe?
Radiant floor with their hands
- The cream of the fungus feet Ekzomin
- Capsules from Vetoksik parasites
- Complex Sustalayf to restore joints
Warm water floor - is an engineering system that can act as an alternative to the traditional way of heating. In order to perform the installation of this design your own, do not need to have special skills and abilities. Suffice it to carefully examine the work of technology.
Apparatus water underfloor
Radiant floor heating - it is a simple system, which consists of the following elements:
- Flexible plastic tube. Is a product which moves coolant.
From the title it is clear that the coolant in the system is water, which passes along the contour, gives off heat. Accordingly, the water which exits the system has a sufficiently low temperature. Therefore, to establish such engineering design in the apartments of apartment buildings is prohibited.
Advantages and disadvantages of water system
Before you go to the peculiarities of installation works, consider what advantages has this engineering system and what it has disadvantages.
- Installation work do not imply the acquisition of special equipment or tools. Consequently, the additional costs during installation are reduced to zero.
Disadvantages of water the floor are as follows:
- If you violate the integrity of the pipe there is a risk of flooding.
The advantages of a warm water floor greater than the disadvantages. A risk of flooding can be minimized by using during the installation of high-quality materials. Violation integrity multilayer pipe, which is not afraid of an aggressive environment may arise only because of inflection during installation.
The main varieties of warm water floor
There are two ways of installation of engineering systems. Based on the method chosen, there are two types of water floors: concrete and grass.
water underfloor heating installation technology
Many people mistakenly believe that the installation of water sex should begin with the purchase of pipes and other building materials. But before heading to the store, the calculations to be performed. After underfloor heating circuit must be intact. Therefore it is necessary to know exactly the length of the loop.
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Mapping stacking water underfloor
After closure calculations should draw the drawing. water floor scheme should be possible to meet all the standards and requirements. Particular care needs to develop it for the room, which was divided into several sectors. The contours are in different sectors should not have contact points.
Preparing the ground for the installation of water sex
First of all you need to clean the dirt and level the rough substrate. It is aligned to the thickness of screed to be laid subsequently was divided evenly. If its thickness in different places in the room will be different, to achieve uniform heating of the floor will not work.
Next you need to lay the insulation. This is done in order to minimize heat loss.
Collector - is part of the engineering system, which makes it adjustable. On the market you can find collectors, the value of which is not high enough. However, after the installation of the element system it is virtually unregulated, as the cheap devices do not have anything except shut-off valve. More expensive equipment is equipped with adjustable flaps. On this version, and worth a stop.
Pipe laying water underfloor
According to scheme it is necessary to lay the pipe. To them during installation is not shifted, can be pre-lay on the floor reinforcing mesh. To her through the wire securely attached circuit.
Connecting the system "water floor"
Each circuit is closed. From the boiler to the system is supplied with water, which passes along the contour, it gives off heat. The cooled water is returned to the boiler heats up there and again enters the system. To occurred continuous movement of the liquid circulator is present.
To successfully complete the installation of water sex, you need to calculate the length of the pipes and to chart. All subsequent steps should be handled. Pay particular attention must act on stage connect the system.