Friday, June 3, 2011

Electric or hot water floor

The essence of floor heating with the help of technology "warm floor" is and the title. Under the floor covering is placed electric heating cables or tubing with hot water. And the heating cable, and tubing are placed in locations premises, where there will be people, the space under the furniture, no heating. Then the construction of "warm floor" poured concrete ties, and thus it is immured deep in the floor. When you turn on the underfloor heating its surface turns into a heating element: the cable or pipe transfer heat the screed, and it - the room. Very large area "heater" maintains its temperature by only 2-3 ° higher than the air temperature in the heated room. The apparent use of "warm floor" do no harm to human body, but on the contrary - are useful and comfortable. One of the main advantages of this type of heating is in a favorable temperature distribution for a height of the room - the bottom is warmer air. Conventional radiators due to the nature of its design gives the opposite effect. "Warm-floor ensures soft and smooth heating of the room, the air it does not dry up, preserving its natural moisture. According to research by the temperature distribution on the height of the room closest to the optimum for a person is using the "warm floor". Particularly favorable such a heating system for children who are so fond of playing on the floor. If you fail cable insulation, the dry area is excluded, even the theoretical possibility of electric shock. With regard to the electromagnetic field produced by electric heaters work, then its value ten times lower than the permissible and does no harm to human health. Water or electric floor? "Warm floors" are electric or water. The advantages of electric floor options - a simple design, lower cost of equipment and installation. The fact is that although the price of pipe stacked in a screed water option is relatively small, in the expenditure part will include a mixing unit to maintain the desired temperature, as well as pump and pipe leading from the boiler. The inertia of the water floor is also more than electric: when stopping the boiler water in the system cools down about 14 hours. Apart from the above, the pipes in the floor require periodic maintenance and, in addition, there is some risk of them leaking. It should also be noted that for water floor height design, which includes ties to the pipes and flooring, is an average of 8-10 cm, while for electric - only 4-5 see significant advantages in the water floor two - lower heating costs and the lack of probability of breakdown of electricity. Where possible and where it is not modern floor heating systems have some limitations in use. For water sexes - it is the premises and areas where temperatures can dip below zero. True, theoretically you can put in the water with these system-lenglikolem, but most developers prefer to avoid heating the porch, garage and garden paths electricity. For the same reason water "warm floor" is not desirable to arrange the houses, where the hosts visited by only occasionally. Although bans on the use of electrical "warm floor" in the showers and bathrooms not, for installation of heating systems in wet areas should be viewed with caution. To avoid risk of electric shock is necessary that the cable had a ground loop and sealed joints. Choosing coatings for decoration "warm floor" is large enough. First of all, it is ceramic tile, porcelain tile and natural stone. Using other materials such as carpeting, linoleum or laminated board, need to remember whether: they act as thermal insulation and does not transfer heat from the floor to the premises entirely. The materials used must have an appropriate notation that they are suitable for the system "warm floor". Can not be used as cover for natural parquet and planks - this material can crack from dryness. Is it possible to heat the house only with a "warm floor"? This question is closely related to the loss of heat in the room and insulated walls. It is desirable that the maximum power emitted by the "warm floor" amounted to no more than 80-90 W/m2. This may not be enough for rooms with non-insulated walls and high ceilings and large windows, especially when it's very cold. If the power exceeds the recommended norm, then the surface temperature of "warm floor" exceeds 26 ° C, it is fraught with discomfort in the best case for the inhabitants of the house, at worst - damage to floor coverings and reduced system life. Therefore, along with under-floor heating, space heating radiators are also necessary - together they account for a combined heating system. Radiators, as well as heated floors, can be connected to a separate circuit of the heating system of the two-contour of the boiler or heat a house using electricity. In this case, sex is an auxiliary source of heat, and radiators - basic. With their help regulate the temperature in the room. Can often be helpful and convectors installed in underground ducts under the skylights. Electric floor: assembly and component parts of electric floor heating in the concrete floor constructed as follows. First, the concrete is recommended to lay a layer of insulation: cork or foam thickness of 3-5 cm is desirable that the material was hard and yet are not expanded when heated. Insulation can reduce heat loss. Then on the layer of insulation is placed a metal foil shield or a grid, whose purpose - to reflect and distribute the flow of heat from the heating cable. For small rooms, preferably foil (better reflects heat), for significant on Living surface - a metal mesh that is both more and reinforced screed. The cable is attached to the screen with special clamps. As an option, there are so-called heating mats - cable, already mounted on the screen. All that is required - is to deploy such mats for insulation layer and pour concrete. Power cable is measured in watts per meter. It fits "snake" or a spiral, so as to electrical power to areas that are placed on 1 m2 of the floor, was 110 - 140 W (part of the heat from the heater "go" for other purposes). The cable is solid and sturdy. Latest - conveniently, as attached to the network only at one point. Upon completion of installation of the heating elements resulting "cake" is poured layer of concrete thickness of 3-4 cm, and a "warm floor" is ready! It is important that concrete screed does not contain sharp stones. Heating cable and fittings shall be completely filled with concrete. The control unit is "warm floor" is usually mounted on the wall. It can serve as a thermostat (to maintain the preset temperature in the room) and the programmed time. Are strictly prohibited include a system immediately after the concrete ties, as it leads to the formation of cracks and breakage. Latest know-how of the developers - ultra-thin cables are sheathed with a special plastic. "Warm floor" with their application can be held without a screed: right on the heating mat is applied with glue and laid tile. Together with the cable is placed and a temperature sensor. Nuances of the water floor unit with a water heated floor constructions like with cable. Heating element of such a system is thermally insulated concrete slab, heated tubes mounted in it, which circulates hot water. Installation of such floors is as follows. On a dry cement sand screed, as well as insulating the walls is laid flooring with aluminum foil, which prevents leakage of heat into the ground floor and walls. The surface of such ties must be perfectly flat, as the pipe in place of the mound could be elevated, resulting in the deposition of the air tube, which prevents water circulation. Then, on the thermal insulator with mounting studs placed plastic, metal or copper pipes, then all poured cement screed. On top of it laid flooring. In such a "warm floor" leading transmission equipment coolant through the pipes: mixing unit and pumps. Price question - installation ... The cost of "warm floor" is commensurate with the price of, say, a good tile the same area. Electric floor, as mentioned, is cheaper and easier to install, but expensive to operate. Their cost is about 15-30 euro/m2, depending on the type of heating cable and thermostat, and insulating the area: the smaller the space, the higher the price of the device of the "square" of floor heating. Installation costs are on average 20% of the cost of equipment. The service life of such floors, as practice shows, up to 50 years. The cost of water systems with the installation of an average of 35-70 euro/m2. She, like the previous case, depends on the type of mixer unit, area, and type of pipe. ... And exploitation where absolute dealer cost - water floor heating.

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