The universal warm floor Devi is very popular due to its high level of quality, convenience and reliability. The brand system helps to solve the problem of heating the floor covering and is able to create the most comfortable climate in the room. The floor of the brand is recognized as one of the safest and most environmentally friendly, which confirms that it has an ISO 14001 certificate. Before installing the system, it will be useful to study its features, advantages and disadvantages, as well as the installation technology.
Characteristics
The heating mat of the Devi system is a system with a self-adhesive base, inside of which there are wires with two or one core. It is complemented by regulators and sensors, with which you can change the power and prevent overheating. The mats are easy to install, suitable for installation under tiles, laminate or any other covering. The main advantage of the Devimat system is that everyone can install it; this does not require special skills.
Mats are capable of heating up to 80 degrees and are perfect for installing underfloor heating in houses and apartments, office premises, country houses and country cottages, as well as technical structures. They are produced in the form of convenient rolls that can be cut, which allows you to easily lay the mats in rooms, even with non-standard layouts. Davy's accessories, such as regulators, LCD thermostats and connectors, work well with modern heating systems.
The Devi system is able to heat the house in a short period of time without additional electricity costs. A special thermostat for underfloor heating Devi is able to automatically regulate the temperature and prevent sudden changes in temperature. The system can be controlled using a PC or in a traditional way, which allows you to set a different temperature in each room and connect additional options. Suitable for families with small children.
The manufacturer provides a maximum guarantee for a period of up to 10-20 years, but in reality the system is capable of operating without failures for much longer.
Types of cables
The manufacturer produces the Devimat system in three varieties - DSVF, DTIR and DTIF, which differ from each other in the type of cable. DCVF is considered a classic as it has been produced since 1996. These mats are based on a thin single-core cable of 2.5 mm, fastened with a self-adhesive mesh, and its power is 150 W / m2. They are suitable only for residential premises, have an inner and outer layer of insulation, do not require a tight screed during installation. DCVF mats are on sale for areas from 0.5 to 10 m2.
The DTIR type has been produced since 2013. These mats work on a double-core 4.5 mm cable with a power of 137 W / m2, have two-layer PVC insulation and can be used in both residential and commercial premises, including balconies and loggias. They do not require a base with a thick screed.
The DTIF variant works with a thinner 3 mm twin-core cable, these mats are equipped with double PVDF insulation and solid screens. They can only be used indoors on floors without thick screed.
Single-core, two-core resistive and self-regulating cables are used not only when installing a warm floor from Devi. They are suitable for pipelines, heat storage systems, greenhouses, heating systems for entrances, open areas and lawns.
Resistive cables must not be cut because they have a special structure and consist of a braided and sheathed heating conductor. The self-adjusting ones can be cut as needed and they also help save energy by adjusting to the indoor temperature.
The main element of any type of Devimat floor is a special Devireg thermostat that independently activates and deactivates the heating option. Additionally, users can connect an autonomous power source, temperature sensor, child protection and other options to the floor.
Single core
DSIG single core cables can be used indoors and outdoors. They are sold in different lengths, simple in structure and low in cost. The price of a 9 meter segment does not exceed 3000 rubles.
Two-core
DTIP double-core cables are equipped with PVC insulation and can be used indoors when it comes to installing a complete heating system. They are also suitable for outdoor use, including on ramps and stairs. Their power does not exceed 10-18 W / m. On sale, they are also presented in the form of segments. The cost of 10 m starts at 3100 rubles.
Two-core with special insulation
Two-core cables of the DTIE type have a special Polyolefin insulation, due to which the installation procedure is noticeably simplified. The manufacturer classifies them as environmentally friendly materials, so they can be used to install underfloor heating systems in medical institutions, kindergartens and schools. These cables are sold in lengths from 9 to 170 m. The minimum will cost from 2600 rubles.
Principle of operation
Devi cable floor is considered the most comfortable and easy to use due to its unique operating principle. After connecting the system, the cable transfers heat energy to the covering, which is a heat exchanger. This process heats the air and optimizes the indoor temperature. The Devi underfloor heating controller receives temperature data from a sensor, then, depending on its value, a current of the required value is supplied to the system, heating the floor covering. When the air warms up to the required temperature, the power will be turned off automatically.
If the temperature drops, the whole process starts from the very beginning. Devilink thermostats are most often used for mats, with their help you can control the entire surface heating system, including sensors, radiator and boiler. Energy during the operation of the floor covering will be consumed taking into account the set temperature value.
The floor is able to warm up evenly for ten minutes. The temperature value will depend on how correctly the installation of the coating is carried out. To avoid possible errors, before installation, you need to study the instruction manual in detail.
Advantages of Devi warm floors
Warm electric floors by DeVimat have many advantages and stand out from analogues from other manufacturers. Customers note their improved characteristics, quality of materials, ease of use and during installation, durability and maximum reliability. The list of the main advantages of the system includes:
- the ability to evenly warm up the entire area of the room during one heating cycle;
- savings on electricity due to thermostats, which allow you to save up to 25% of the total amount of payments in the cold season;
- the ability to use the system at any time, regardless of the operation of centralized heating;
- combination of the system with any type of flooring;
- the ability to warm up both the entire room as a whole, and a separate zone;
- the most simple installation;
- no additional costs for system maintenance.
The system is suitable for all types of interiors as it is completely hidden under the floor. It does not violate the style of the room and can be combined with all types of floor coverings.
Calculation and installation
Installation of Devi floors does not cause problems; every person who has previously studied the operating instructions can handle the installation. When installing under a tile, use only DEVflex cables with a power up to 20 W / m. For residential premises, cables with a power of up to 100 W per square meter will be sufficient, for bathrooms and toilets - up to 120 W.
During installation, additional special tools are not required, in addition to the system, mounting tape and corrugations will be enough. Before laying the cable, prepare a concrete screed, the thickness of which should not exceed three centimeters under the wires. The equipment must not be laid in places where large-sized furniture will stand. A distance is observed between the individual threads, which depends on the type of heating system. For a full step is 7.5-10 cm, for an auxiliary one up to 15 cm.
The degree of heating of the room depends on the correct thermal insulation, especially if it is located on the ground floor or above the basement. Expanded clay screed, foamed polypropylene or roll cork backing are usually used as heat insulating materials.
In addition to thermal insulation, be sure to use a polypropylene mesh or polypropylene mesh, which is placed on top of the mats. In rooms with a high level of humidity, an additional waterproofing layer is created, located above the cable.
Technology and device of DeVimat floors
All DeVimat floors work according to the same technology, which is based on the electrical resistance of metals. Due to the heating of electricity, heat goes up and enters the air, which warms up evenly after a while and creates an optimal temperature regime inside the room. The construction of this type of floor does not differ in complexity and consists of soil, foundation, thermal and waterproofing, supplemented with mounting tape, heating cable and screed. For mats, it is imperative to install a Devi thermostat for underfloor heating.
