Pipes for warm water floor: types, selection criteria, installation

warm system floor to create a comfortable environment in a private home. It can be used as a supplementary or primary heat source. When choosing pipes for warm water floor, should take into account a number of features and nuances. Also worth in advance to check their installation work. We offer a choice of features to learn and explore the stages of installation.

What pipes for floor heating is better: the basics right choice

Getting to the choice, be sure to take into account the peculiarities of operation of the future system. As a rule, the water warm floor operates under the following conditions:

• The pressure to 6 atm .;
• Temperature up to + 55 ° C;
• Environment - concrete strainer;
• Operational load of about 150 kg / sq.

Operating conditions can hardly be called severe enough. When deciding how to choose the pipe for underfloor heating, you should definitely familiarize yourself with the options available. Purchased product must have sufficient characteristics to resist external mechanical impact is not corrode under the influence of water flowing inside.

Basic requirements for pipes for floor heating

Before you decide which pipes for floor heating is better, it is necessary to get acquainted with the requirements of the elements of the heating circuit. The use of low-quality materials with low physical-mechanical characteristics or wrong size will result in inefficient operation of the system or a significant reduction in its life.

materials

To manufacture the heating elements of the circuit should be selected a material that can withstand temperature fluctuations and pressure surges. Used for this purpose tubesDesigned for hot water system installation, is not permissible.

The material should be sufficiently resistant to external impact. From this period is directly dependent loop service, which in the process of installation will be filled with concrete. dry screed not so good stores and distributes heat, although more convenient in terms of repair. pipe material must be chemically inert, heat and corrosion resistant.

The geometrical dimensions

The optimum diameter of the mounted circuit is 16 ÷ 18 mm. Such transverse dimension sufficient to heat the floor. In this case, the floor height is increased slightly.

The maximum tube length may be 60 meters, if the tube diameter of 16 mm, and 120 meters, if - 25 mm. Exceeding the specified will lead to a premature cooling of the coolant and reduction in system efficiency. The rooms are large area provide multiple paths.

Physical and mechanical characteristics

Characteristics purchased items are important. On this depends their purpose and possible uses. pipes must be purchased for Warm water floor whose linear expansion is not more than 0.025 mm / (m × K) and thermal conductivity of at least 0.43 W / (m × K).

Classification of pipes for floor heating the material

Before you decide what kind of pipe used for water floor heating, it is necessary to get acquainted with the existing options. Characteristics of the material used to make the elements of the system, could have a significant impact on her life and the duration of use. Please find the most popular choices, and their distinctive features.

polypropylene tubes

Polypropylene It demands to create a water system. It has good thermal conductivity, durability, affordability. The disadvantages include low ductility material. It can not be coiled, but because at the device warm floor additionally have to use special tees and corners, which are interconnected by means of a special soldering. When done correctly, the assembly work is possible to create a reliable system of the desired size.

Stainless steel

corrugated products exhibit an optimum combination of ductility and strength. They have a long service life, the duration of which is limited only for the period of operation of the sealing rubber bands, is only 20 ÷ 30 years. Additional braid will improve the mechanical strength of the product.

Cross-linked polyethylene

In polyethylene production process is subjected to special treatment under high pressure with peroxides, are placed under the hard X-rays or treated with silane. The result is a PEX-pipe having high strength and resistance to elevated temperature. This is facilitated by the formation of three-dimensional molecular carbon bonds.

Attention! For floor heating pipe should be selected from a polymer having a degree of crosslinking of 75 ÷ 85% (PEX-a, b, c).

When choosing a suitable option, you should pay attention to the pipes for warm water floor REHAU, the price of which is dependent on the product size. Such a circuit is quite popular, because:

• It is lightweight for easy installation and transport process;
• dampens minor fluctuations pressure in the system;
• It is able to recover its shape after stress relief;
• It does not corrode;
• durable;
• hardy;
• available.

The disadvantages include low resistance to ultraviolet light, as well as increased requirements for the installation work. During installation antidiffuznoy unacceptable damage to the outer shell.

Copper pipes

Among the materials for warm water floor Copper occupies a special position. Such tubes, demonstrating the high level of thermal conductivity, have a long operating period (greater than fifty years). They are biologically and corrosion resistance, but make high demands on hardness and the acidity of used coolant. No fear of external mechanical and thermal influence. With a significant heating coolant Copper pipes are not melted and do not crack.

Copper products easy to take the desired shape. They can be used to form a system of any length and configuration. When installing, use special equipment. Copper interconnect elements unacceptable steel.

Plastic pipes for floor heating

Products made of metal - the most popular option that allows you to create high-performance heating systemDiffering high efficiency. The aluminum layer, part of the material provides sufficient thermal conductivity. Thanks to the multilayer structure of plastic pipes for floor heating prevents the formation of deposits on the inner surface.

For warm water floor, use whole product. By formed compounds should provide tolerance during operation. Pouring concrete interface is not permitted because of the high probability of occurrence of a leak in the future.

Calculating the number of pipes in the system and their stacking step

Calculating the number of tubes begins with the development of the detailed scheme of installation. Plans developed in a convenient scale. Determined not only by the size of the room itself, but large furnitureWhich will be installed in the room.

Positioning water circuit under heavy Furniture Set Not recommended. From the square, which will deal with the next line should be deleted footprint household appliancesUnder which the water circuit assembly is prohibited. The system should be located at a distance of 10 ÷ 20 cm from the walls.

Calculation step pipelaying water underfloor

Between adjacent elements a distance 35 is provided ÷ 40 cm. Increasing step of laying pipes of water underfloor heating is not recommended. This will lead to non-uniform heating of the floor surface. For a more accurate calculation should take into account that the 16 mm diameter pipe is able to warm up on both sides of up to 15 cm. If the step between the pipes is 20 cm, for each square 5 meters of need.

After stacking scheme is carefully designed, measure the length of the loop and to multiply the resulting value on the scale.

Basic installation nuances

Deciding which pipe for warm water floor better, it is necessary to deal with the peculiarities of the installation work. Optionally invite professionals. You can perform the entire scope of work if you want to own.

Stacking pipes for warm water floor

By the beginning of the work should be prepared and carefully designed, taking into account all the nuances of the installation scheme. Stacking pipes for warm water floor is carried out in strict accordance with the developed drawings.

Photo	Description of work
	Before starting work, preparing the ground. It should be smooth and firm. The best option would roughing device screed.
	We put a polyethylene film with an overlap on the wall to prevent moisture penetration of dirt into the house.
	Fastened edge band, laid insulator layer, mat.
	Begin laying pipe from the boiler, being guided on the developed circuit. The field curvature contour is fixed by three staples.

pipe connections

Connection among the individual items must be given special attention. From this depends the life of the mounted system. The order of connection depends on the material from which the elements of the system.

Installation and connection of the pipeline

Photo	Description of work
	Fits distributor, whose size depends on the number of coils provided for the design documentation.
	At the place adjacent to the distributor, the pipe arranged tightly enough. To avoid overheating of the floor surface of each tube is isolated in this place
	Connection is made via a connector clamping sleeve which threadably connects with the clamping ring and Eurocone.
	After checking circuit wiring. Each circuit is checked individually. To do this, first disables all circuits by closing the valves on all reservoirs. Then, the first circuit is opened and water is supplied.
	With the passage of water according to the contours of the pressure increases. Produced venting the lower manifold.
	After the System Health Validator made screed. While screed has hardened, damaged during installation of the pipe section can be replaced. After complete solidification of the surface can begin to finishing.

Where and for how much water pipes for floor heating?

Before give preference to a particular type of, Is worth reading with the average cost of these products. This will allow to compare the cost of the acquisition to the quality of the model. Average rates in pipes for water floor heating are presented in the table:

Photo	marking	Material	The average price per square meter, rbl.
	PE-RT Optima 20 × 2,0 BIR Pecs	Polyethylene of raised temperature resistance	35
	16 × 2,0 (PE-RT)	Polyethylene	24
	STOUT - 16 × 2,0 (PE-Xa / EVOH, PN8, bight 100 m)	Cross-linked polyethylene	67
	STOUT - 20 × 2,8 (PE-Xa / EVOH, PN10, bight 100 m)	Cross-linked polyethylene	115
	KME Sanco 18 × 1,0	copper	421
	Corrugated SS304 Neptun IWS A, annealed)	Stainless steel	156

Those who decided to buy pipes for water floor heating, given the information necessary will make the right choice. If you still have questions, ask them in the comments. We will try to answer them in detail on.