The comfort of our stay in the house depends to a large extent on the operation of the heating system, that is, in fact, on how professionally it is designed. This problem can be solved quite effectively by installing ready-made heating systems from well-known manufacturers who have gained popularity due to the quality and reliability of their products. The German brand Rehau has long been famous for the production of all kinds of high-quality polymers. The experience of using our developments in ready-made heating systems also turned out to be extremely successful. The Rehau water heated floor turned out to be a unique complex of its kind.
Advantages of Rehau products
- Rehau water heated floors release thermal energy as much as possible, reducing its losses in the room to nothing.
- Innovative technologies ensure exceptional strength of the pipes used, which, in turn, guarantees the integrity and practicality of use of the system for many years.
- Rehau flooring does not require special maintenance or care. It is completely autonomous.
- Allows you to design a system both for the entire room and in its individual sections.
- The efficiency and cost-effectiveness of installation makes it possible to use various installation technologies, for example, the use of liquid screed or laying pipes at an acute angle.
Design
The design of any heated floor begins with its calculation.
First of all, calculate the best possible power of the system using the calculated data of its specific heat capacity. On a note
The specific heat capacity of the heating complex in rooms provided with a good level of thermal insulation is about 70–150 watts per square meter. m.
The Rehau floor heating system consists of a number of elements:
- pipes with increased resistance to high pressure, which are made from cross-linked polyethylene. They are equipped with couplings and fittings that ensure reliable fastening;
- mounting elements, say, a mat with clamps;
- control units - combs, thermostats and temperature sensors.
Then select the installation scheme for the pipeline, laid in increments of 11–18 cm.
Attention
Please note that if the total length of the pipes being laid exceeds 15 m, then due to the temperature difference at the starting and ending points, the uniformity of heating in the pipeline will be disrupted.
After the layout plan has been drawn up, the elements of the water heated floor are selected.
Its configuration begins with the selection of pipes.
Types of heated floors Rehau
The company produces two types of heating systems:
- Electric heated floors.
- Water heated floors.
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Electric floor
The underfloor heating system is based on SOLELEC. During operation, electrical energy is reorganized to heat the space. A cable is used as a heat generator. It is made of elements that have high resistance, which causes the device to heat up when electric current passes through it.
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The kitchen will be very comfortable
The heat generated by the cable not only warms the floor, but also spreads throughout the room, penetrating through it. People hardly notice the difference between the temperature of the floor covering and the air in the room, since it differs by only a few degrees. This has a beneficial effect not only on people’s mood, but also on people’s health.
The manufacturer allows almost all common materials as finishing floor coverings, so owners are not limited in their choice of room design.
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This kitchen will be cozy
The SOLELEC system is very widespread, as it is actively used for the following purposes:
- Floor heating with maximum comfort for people.
- Heating of the room, including as the main source of heat.
How to properly connect the Rehau system to heating:
Components of an electric underfloor heating system
Heating mats and cables.
The entire branched system is based on the principle of constructing cables using a two-core shielded pattern. This ensures maximum protection from electromagnetic fields for users. The mat has a thickness of 3.5 mm. It is buried in a layer of tile adhesive or a specially created thin screed. The mats are equipped with a self-adhesive backing. Thermostats. There are standard and more advanced models in which thermostats can be adjusted both by the insulation of the floor and by the temperature of the air masses in the room. Sometimes it is possible to set special heating modes, in which the temperature is adjusted depending on a specific time or date.
Warm floors from Rehau are suitable for almost any surface
Installation kit. It is used when installing floor coverings for warm electric floors. The set contains the following elements:
- Socket box for installing a thermostat.
- A protective tube with an aluminum tip for installing a special sensor that constantly detects the temperature of the coating. Aluminum has a high thermal conductivity, which allows you to easily and accurately determine the exact temperature, and, if necessary, remove this element from the floor for repairs and maintenance. In this design, all of the listed indicators are at a higher level than when the sensor is located in a corrugated pipe.
- A 90-degree rotation lock for the special temperature sensor tube, which serves as its protection and is located in the gap between the floor and the wall.
- Corrugated pipe used for installing a cold cable in a wall structure.
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Advantages:
- The main advantage of two-core shielding cables is to minimize the level of electromagnetic radiation. This makes the underfloor heating system completely safe for use in children's rooms, the most frequently visited areas. There is no risk of radiation exposure for animals or potted plants placed on the floor.
- The cables are equipped with Teflon coating and additionally have Kelaur reinforcement. These elements are mechanically strong and can withstand the highest possible temperatures for a long time. This factor is of particular importance for system elements, the removal of which presents certain difficulties, which does not allow for their timely repair.
- When purchasing an electric underfloor heating system, the client receives separate heating cables and special mats. These elements are small in thickness, so they practically do not change the overall height of the room after the renovation is completed.
Rehau gives a 50 year guarantee
The SOLELEC system can be used in any type of premises, including those with high humidity, so you can install heated floors in all rooms of the apartment and even in industrial buildings.
Laying heated floors under laminate:
Water floor
How to make a collector correctly. Click to enlarge
This is a favorable solution for underfloor heating, which can make the atmosphere in the room more favorable. The design of the heating system pipes allows them to be quickly and easily placed in the floor, without damaging or changing the interior.
When the system operates, constant and soft heat is supplied, which allows for a moderate temperature in the entire room, without creating a contrast between the heating of the floor covering and the environment. A water heated floor is also useful in the summer, as it can be used to lightly cool the room. A smooth transition of the overall temperature down several degrees is ensured, without the appearance of drafts or pockets of sudden cooling. This procedure is carried out practically free of charge, since the system in this case works very economically.
The water heated floor is constructed with REHAU RAUTHERM S pipes. They have a characteristic red color and are designed specifically for organizing heated floors. These pipes have an important difference from others, as they are equipped with an internal self-supporting coating mounted from PE-Xa polyethylene film.
An interesting option for how to arrange a collector
This layer is sufficient to guarantee high structural strength and resistance to any temperature. The system allows heating up to 90 degrees and an internal pressure of no more than 6 bar.
Advantages:
- Installation takes 4 times less time than when laying heated water floors from other companies. This effect is achieved through the use of special mats with REHAU Varionova fasteners. This allows you to install REHAU RAUTHERM S pipes reliably and economically.
- The floor is constructed from special blocks with standard parameters. They are installed layer-by-layer along the fixation line and secured using the snap-in method.
- The cost-effectiveness of the coating is manifested due to the complete absence of material waste, since each subsequent row is a continuation of the previous one.
Rehau pipes
The main link of the heating complex is RAUTHERM pipes.
For their production, cross-linked polyethylene of increased strength is used. In order to block the access of oxygen as much as possible, an ethylene vinyl alcohol layer is provided in their walls, which performs a protective function. Separate sections of the pipeline are connected to each other using the sleeve method using sliding sleeves, couplings, etc., which are equipped with rehau underfloor heating pipes.
Depending on the required power indicators, pipes of different diameters are installed. The company's product range includes products with an internal cross-section from 10 to 25 mm.
Let us note some advantages of RAUTHERM pipes.
- High mechanical stability.
- Low heat transfer resistance.
- Flexibility that ensures complete absence of kinks.
- Resistance to corrosion and destruction.
- Unlike metal pipes, they are not prone to the appearance of internal growths.
- Their high elasticity allows them to be compressed or compressed without damaging the system under high mechanical loads, say, when moving heavy furniture.
- Chemical neutrality. They do not lose their performance if copious amounts of alkali or other chemicals are spilled on the floors.
- Resistant to high operating pressure and elevated temperatures.
Installation of a warm water floor
The work of assembling a heated coating is quite complex and requires a professional, scrupulous approach:
- Installation with a screed is considered the most suitable type, where a concrete screed 3–5 cm thick is poured over a layer of pipes, depending on the base, maximum load, and finishing coating.
- Laying in polystyrene foam. Several slots are made in it for channels, pipes are laid and, after installing them in a certain place, they are filled with concrete.
- Installation in rooms with wooden flooring. Boards are laid over the subfloor area, forming a channel for laying the pipe, which is then covered with a final, durable material.
Fasteners
To secure the pipeline transporting the coolant, fastening systems are used. There are several such products.
Varionova fixing mats
The rigid polymer material from which they are made provides the mats with excellent mechanical stability. For example, they are able to withstand the load from the weight of an adult man, even if the top layer of the screed has not yet been poured. They provide greater speed of installation of Rehau floors compared to models from other manufacturers. Each product is equipped with clips designed for installation over pipes. Mats can be cut along special lines into individual fragments. They are then joined together using connecting elements. Pipes ø 14–17 mm are laid with a minimum step of 5 cm.
Specifications:
- The thickness of the coating is 2 mm; it is possible to choose products with or without a thermal insulating foam backing.
- Designed for laying pipelines with a diameter of 14 to 17 mm.
- The minimum laying step is 5 cm.
- To optimize installation, the surface of the mats has cutting lines and connecting elements for joining individual parts to each other.
RAUFIX tires
This is the best way to install an inexpensive heated floor. Tires made of rigid polypropylene, thanks to special brackets on the underside, are attached to almost any base. Such products have a small thickness, which is why the floor height increases by only 5 mm. The installation of the main line is carried out in increments of multiples of 5 cm. The tires are 1 meter long and 4 or 5 cm wide. The tires must be mounted on top of the thermal insulation layer.
Installation of REHAU heated floors with pipe fastening on reinforcement mesh
Components of the system for fastening REHAU pipes to reinforcement mesh:
— QUATTRO swivel clip; — rod for fastening QUATTRO clips; — mounting grid RM 100; — mounting grid RM 150; - wire harness; — a device for twisting the wire harness; - dowel with chain; - protective film
REHAU pipes for use in heating surfaces on reinforced mesh:
— RAUTHERM S 14 x 1.5 mm; — RAUTHERM S 17 x 2.0 mm; — RAUTHERM S 20 x 2.0 mm; — RAUTITAN pink 16 x 2.2 mm; — RAUTITAN pink 20 x 2.8 mm; — RAUTITAN flex 16 x 2.2 mm; — RAUTITAN flex 20 x 2.8 mm
Component systems for fastening pipes to reinforcing mesh:
— wall thermal insulation;
— profile for expansion joint; - adhesive tape; — machine for applying adhesive tape; — additional thermal insulation Description of the pipe fastening system on the reinforcing mesh
QUATTRO rotary clips provide reliable fastening of pipes on the reinforcing mesh by pressing the hooks located on the back of the clip to the wire. Thanks to the pipe clamps on the top surface of the clip, they are easily attached and at the same time securely fixed. The QUATTRO swivel clip can be rotated in two directions for fixation: - with the base transverse to the direction of the pipe: fastening a pipe with an outer diameter of 14–17 mm; — base in the direction of the pipe: fastening a pipe with an outer diameter of 20 mm. The QUATTRO swivel clip can be installed both at the intersection of the wire and at the straight section of the wire. For pipes with an outer diameter of 14–17 mm, the laying pitch is not related to the raster of the reinforcement mesh. The QUATTRO swivel clip covers a wide range of usable pipe diameters and installation pitches using the same clip. The clip attachment device uses magazine clips for quick installation. The QUATTRO swivel clip is installed on the fitting with a rotational movement. The reinforcing mesh is used to fix QUATTRO rotary clips with the calculated laying step. Reinforcing mesh RM 100 with a grid of 100 mm and edge cells of 50 mm on each side must be laid with an overlap. A protective film made of durable PE protects against the penetration of barrier water into the joints of thermal insulation and prevents the formation of heat and sound bridges. REHAU protective film does not replace the necessary vapor barrier. The harpoon bracket protects the reinforcing mesh for fastening pipes from floating when using liquid screeds.
Heating of open areas and snow melting system
You can use the REHAU system to heat the open areas and paths of your property, including the driveway to the garage.
This will save you from the need to clean them from snow and ice during the cold season and will guarantee your safety and convenience. You won't have to get stuck in the snow and risk slipping. Parking the car in the garage or moving out of the house into the street in winter will also not be difficult. Heating of open areas, paths and snow melting has been successfully used for quite a long time in northern European countries with cold climates - Finland, Norway, Sweden, as well as in Canada and the USA. World experience has shown that heating paths and areas is less expensive and more convenient than cleaning it using traditional methods - manually, using snow removal equipment or chemical reagents. This is a great opportunity to: • ensure a comfortable stay and safety for residents and your guests during the cold season; • get rid of excess snow, ice and dirt, and create an attractive image of the territory; • reduce costs associated with the purchase of equipment, consumables and labor for cleaning paths and areas; • maintain the integrity of the road surface longer. Installation. Do-it-yourself warm floor
The use of ordinary steel construction mats and reinforcement mesh is acceptable for REHAU underfloor heating/cooling systems as well as snow melting and outdoor area heating systems.
1. Place the REHAU distribution cabinet. 2. Install the REHAU distribution manifold. 3. Fix REHAU wall insulation.
4. Install additional REHAU thermal insulation, if necessary. 5. Lay the REHAU protective film with a minimum overlap of 8 cm. 6. Completely seal the overlaps of the REHAU protective film with REHAU adhesive tape. Damage to REHAU film impairs its protective properties. Large holes or cuts in the REHAU protective film must be completely sealed with REHAU adhesive tape. 7. Glue the self-adhesive film apron of wall thermal insulation onto the protective film. 8. Lay the reinforcing mesh close to the wall insulation. 9. Lay the reinforcing mesh overlapping and twist the outer wires of adjacent mats with REHAU wire binding. When using liquid screeds, reinforcement mesh mats with pipes may float. The reinforcement mesh mats must be secured with REHAU dowels. In areas of expansion joints passing through the floor structure, the reinforcement mesh mats must be separated. 10. Install REHAU rotary clips using the REHAU rod on the reinforcement mesh mats in accordance with the laying plan. In this case, you should pay attention to the following: - Direction of installation of the rotary clip: - the installation step of the rotary clips on straight sections of pipes should be approximately 50 cm. When using liquid screeds, a smaller distance is required to prevent the pipes from floating; — at pipe bends, rotary clips must be installed at the intersection of the reinforcing wires; - it is necessary to take into account the minimum bending radius for each pipe used. Install the rotary clips diagonally on the reinforcing mesh and fix by rotating the clips around its axis clockwise www.isan.ru
Control elements
The main control device of the set is the comb. Rehau offers the consumer several modifications of the distribution manifold. The best option is a comb assembly, which includes a thermostat and a flow meter installed, respectively, on the inlet and outlet manifold. There are, of course, other options, since you can connect a water heated floor through a pumping and mixing unit. In this case, the components, say, a circular pump, are purchased separately.
ADDITIONAL REHAU ELEMENTS FOR WARM FLOOR
In addition to pipes, to assemble a floor heating system, a number of additional elements are required, the production of which was taken care of by the Rehau company. This:
- circulation pumps;
- control units;
- thermostats;
- collectors;
- fittings of all configurations.
When selecting components, follow the manufacturer's recommendations and project requirements.
