The information - which is better to use pipes for floor heating

Underfloor heating brings home comfort and comfort, allows you to forget about the drafts and frequent colds.Such a closed pressurized system can be added, or the main type of space heating.But in order to warm the floor served for a long time, it is necessary to take into account all the nuances of the installation.An important factor - the choice of pipes.

What pipe used for underfloor heating

Types

installation pipes are laid in three ways:

• - using a concrete screed (concrete);
• - pipes are laid without the use of cement, and the finish floor covering based on aluminum sheets and an absorbent layer of polyethylene foam or cardboard (grazing);
• - pipe for installation of floor heating on wooden plank floor joists or on rough floors.

to pipes

Requirements Since the installation of floor heating - is not the easiest process, the heating pipes (in any case you can not use the pipe for hot or cold water) must be durable , that is not to be destroyed at a differential pressureor temperature resulting chemical or bacteriological loads.Subject to all rules of operation and installation, the length of service of plastic pipe for over fifty years.

In addition, the pipe must have a reliable insulation and integrity , protecting the entire heating system from oxidation.

pipes for floor heating should be flexible (to bend by hand), resistant to bending (a prerequisite for high-quality editing and calculating the distance between the pipes), not to break or crack.

meet these requirements made of metal (metal-polymer) tubes, copper, pipes made of polyethylene, polibutana and steel as well.

forbidden to use cast iron pipes in accordance with the rules.

recommended to select pipes for floor heating from reputable manufacturers.This is not only a guarantee of good quality products, but also will allow in the case of marriage to obtain compensation for damages.

pipes of metal

Metal-pipes are made from polyethylene and aluminum.They are able to tolerate without fracture heated to one hundred ten degrees (optimum hot water for floor heating systems are not above 55 ° C) to bend at the desired angle (maximum bending radius equal to the outer diameter of the pipe, multiplied by 8), and very reliable.Besides metal-pipe environmentally friendly, resistant to corrosion and chemically active media, have a low weight and high coolant acoustic properties (sound of coolant flow completely invisible).

There are some disadvantages: change the coolant temperature detrimental to the walls of the pipes;after repeated bending of the tube may be damaged aluminum layer;unacceptable twisting or bending pipes about their axes.

Metal pipes made from thin aluminum strip (thickness 200-400 md), which is welded methods of "overlapping" or "butt" with the help of ultrasound.After that, the outer and inner part of the pipe is fixed on a special adhesive layer of polyethylene.

Welding plastic pipes

The most commonly used products in diameter 16 and 20 mm.The wall thickness, respectively, and 2.25 mm 2.The weight of 1 linear meter of 115 and 170 grams.

Video - how to bend metal pipes for laying underfloor heating

Marking: on the pipes indicate a company's products, the certificate, the date of production, the diameter of the walls and their thickness (in millimeters, at least inches), the value of the nominal pressure, the ordinal number of the partyPE mark (PP-R - PP, PE-R - PE, PE-X - linked PE).

Sample marking on

pipes Polypropylene pipes for heating

Installation of polypropylene pipes produced only when the air temperature is not lower than 10 degrees.Their main advantage, along with a low cost - after heat-pipes are monolithic.Such pipes are very durable, their life span at least 25 years.The maximum water temperature - 95 degrees.However, these pipes used for underfloor heating infrequently due to their small bending radius (which, respectively, reduces the level of space heating).When mounting requires special Socolest or welding nozzle.

used for heating pipe PN25 marking (reinforced with a perforated aluminum foil).They are made with an outer diameter of wall 21.2 to 77.9 mm and a wall thickness of 4 to 13.3 mm.

Polypropylene pipes for heating

pipes for floor heating, polyethylene (PE)

These pipes preferably earlier, but when installing polyethylene easily damaged.The smallest bend radius - 5 outer pipe diameter (in tubes of polypropylene - 8).PE pipes for floor heating system installation can withstand the maximum water temperature of 120 ° C.For the installation of polyethylene pipes must be a large number of fasteners, as the pipes do not keep their shape after bending.

Marking: HDPE - pipes with the greatest density, MDPE - medium density, LDPE - low density.

pipes of crosslinked polyethylene (PE-X) have increased durability and resistance to deformation?changes in temperature and pressure, such pipes are more flexible, lightweight, eco-friendly.Release them with an external diameter of 10 to 110 mm, is coiled at 200 meters, which reduces the number of joints and simplifies assembly.When installing fittings are used for metal-plastic and axial technique.

polyethylene crosslinked by peroxide, silane gas or electrons in an electromagnetic field.A method of processing affects the strength of the product.The most high-quality pipe - stitched peroxide (marking PE-Xa).

pipes for floor heating, polyethylene (PE)

Brass and stainless steel corrugated pipe

quite expensive pipes but the most durable and meet all installation requirements.

Such pipes differ most smaller bend radius without causing defects, making them leaders in the installation of underfloor heating.Minimum service life - 50 years.They can withstand temperature increase of the water in the system to three hundred degrees, and pressures up to 400 atm.Brass and stainless steel tubes are not afraid of lime, rust, they will not spoil rodents pipe impermeable to gases, have a high emissivity.

However, be aware of the impossibility of connection of copper pipes with any accessories other than brass.

Copper pipes for floor heating

summarize what the pipe used for the installation of underfloor heating, and which are not

Thus, summing up, it should be noted that the best pipes for floor heating - copper.But the cost of the pipes themselves and work on their installation, as well as the complexity of the process deters the majority of consumers who do not have sufficient budget for this.

more common metal pipes because of their low cost and ease of installation (connection fittings without welding).Abroad, the same system for radiant floor heating pipe is used more often made of plastic, without the aluminum layer.They are cheap enough, but inferior in quality of metal and plastic and copper pipes.By the way, about installation of floor heating on the heating, we wrote on our website.