DIY electric underfloor heating

Electric underfloor heating is quite simple to install. Such a procedure can be performed independently without problems. There are several approaches or methods for installing such heating.

The most common ones are:

1. Underfloor heating equipment directly in the floor screed layer and subsequent laying of the required coating.
2. Equipment on top of the screed followed by the installation of ceramic tiles.
3. Equipment directly under the finish flooring.

In a layer of a coupler, heating elements are laid if necessary high-quality floor leveling and works of thermal insulation in the repaired building.

On top of the screed, lay out the components when equipping a warm layer under the tile. This is true in the bathroom or in the kitchen.

When laying modern materials on the floor, a film with heat elements directly under the flooring has worked well.

All of these methods are different from each other. The choice of the right approach depends on the type of room and the current situation. For example, screeding is good for heating a bathroom, a loggia, a kitchen and other rooms.

Layers of waterproofing and heat-insulating material must be laid under the underfloor heating system., over the system - a screed is made, the layer of which should not be wide. In the case when the floors are already insulated or high-quality thermal insulation of the lower room is made, you can do without screed.

Then, the floor heating system is laid under the tiles. In residential premises, with laminate or linoleum flooring, and in the case of a high-quality and even floor, it is permissible to install heating components for the coating itself. Often, this option is called film underfloor heating.

Preparatory work

Components of electric surface heating are sold in the form of a cable or a finished mesh. After acquiring all the materials, you can begin the preparatory work.

First of all, it is worth checking the operation of the entire heating structure until it is mounted and connected.

The main preparatory stages include:

1. Layout of the room to determine the areas of laying the system (under stationary furniture, household appliances and decorative elements, the systems are not installed).
2. Surface preparation for installation. To do this, all old coatings are removed, and the floor is cleaned from dirt and dust. If necessary, the base is leveled.
3. Thermal insulation layer in progressto reflect heat in the right direction and minimize losses.
4. Laying a waterproofing layer with an overlap on the walls (overlap is equal to the height of the finished base).
5. A damper tape is fastened around the entire perimeter of the room.to protect the walls from screeds.

Installation

For the equipment of an electric base with heating, no special tools and materials are required.

Among the most necessary note:

1. Components of a warm floor (heating elements or films).
2. Thermal insulation and waterproofing materials.
3. Materials for bulk screed (concrete mortar or bulk floor).
4. Pencil and construction level.
5. Strob punching tool.

The installation of the floor itself is simple. It begins with the installation of a temperature sensor for subsequent temperature control.

Walkthrough:

1. To install the sensor approximately one meter from the surface, it is necessary to break through the strobe to bring electricity. To do this, make marks with a pencil along the entire length and carefully drill a kind of groove, moving from bottom to top.
2. On the wall, at the base of the strobe, a recess for the regulator is equipped. Also, a depression is made in the insulating layers of the floor under the corrugated pipe for this sensor.
3. The transition of the corrugated pipe from surface to surface is made smoothto avoid breakage. Through this pipe also leads the cable to the heating elements of the system.
4. Laying heating elements (wires, films or mats). According to the intended layout, the heating system is installed, observing at the same time the distance between the components is at least 10 cm, the distance from the walls is at least 20 cm.
5. Finishing the final screed up to 3 cm thick. It is allowed to lay the flooring directly on the heating system, depending on the type of floor. When performing the screed, it is important to wait until the materials have completely dried (about one month).

Additional wires for grounding required to be connected to the protective terminal.

Wiring diagram:

Advantages and disadvantages

For all types of implementation of the warm base, general positive and negative qualities can be distinguished.

The benefits include:

1. No complicated equipment required for installation and special skills.
2. Ease of repair.
3. Long uptime.
4. The lack of radiators.
5. Wide range of functions to control the temperature.
6. Low temperature heating element.
7. High efficiency and degree of comfort.

Negative points:

1. Requirements for raising the base of the room up to 10 cm.
2. With a long duration of active work possible release of a small amount of harmful substances.
3. Not compatible with all surface coatings. (heat transfer resistance of the material is not more than 0.15).

Calculation of underfloor heating

One of the main parameters when designing a warm electric base in a room is its power. For different rooms, the requirements for it are different, for example, for a bathroom - 180-190 watts per square meter, for a bedroom or living room - 100-150 watts per square meter, for a balcony - 200.

To determine the resulting power, it is necessary to multiply the required average coefficient by the useful area of ​​the room (excluding the area under stationary furniture).

It is worth considering that the realized floor power will be directly related to the costs of its operation, since such heating will increase energy consumption. For example, a floor with a capacity of 150 watts per square meter. meter on an area of ​​10 square meters. meters when working 8 hours a day per month will consume 360 ​​kWh.

Consequently, the payment for the consumption of electric energy will grow by about 900 rubles.

Price

Prices for the purchase of an electric-based underfloor heating depend on the type chosen and the manufacturer's company.

On average, the following price ranges can be determined:

1. Screed Mounted Heating System, will cost from 3000 to 5000 rubles (for 5 square meters. m) depending on the selected capacity, plus the cost of the cable for connecting from 1400 rubles per linear meter.
2. Price of heating mats (screed mounting) lies in the range from 4,500 to 7,500 rubles (for 5 square meters. m).
3. Film underfloor heating will cost from 300 to 600 rubles per linear meter of material. It is necessary to add a sensor, wire, fasteners and insulating materials to the kit.

In general, the price depends not only on the type of installation of a warm base on electricity, but also on many other factors:

1. The area of ​​the room.
2. Type of premises (industrial, residential, etc.).
3. The pricing policy of the manufacturer materials.
4. Selected components (cable, mounts, sensors) and etc.

For example, we calculate the total cost of the floor for each type of installation of the base in question. In the calculations, we take into account the acquisition of high-quality European materials, installation costs, and the acquisition of high-tech regulators.

Based on the foregoing, and based on 5 square meters of surface, we obtain the following prices:

1. Floor screed from 9000 to 12000 rubles;
2. On the screed -9500 - 18000 rubles;
3. Film option - 4,500 - 8,000 rubles.