Device heating

To make people feel comfortable floor temperature should be close to a comfortable room temperature. This is possible in the application of floor coverings with low thermal conductivity (flooring, carpeting, wood floors). Recently, however, the construction, repair and reconstruction of residential and industrial premises for facing gender is increasingly used ceramic tile or marble. And the tile is laid on the floor, not only in bathrooms, but also in areas such as kitchens, halls, vestibules. In this case, the floor temperature is several degrees below room temperature, and you will not save any warm slippers or wool socks. The solution of course. Cold floor to warm up a bit, arranging, for example, the underground heating system. As a result of convection currents in the change room, and, consequently, climate. Underfloor heating is a low central water heating system with water temperature 55-45 ° C. The low temperature of the floor indicates self-regulating properties of this type of heating, which is manifested great changes emissivity warm heater surface temperature changes of air in the room. Underfloor heating is a heating system in which vast amounts of heat given by the radiation. Heat flow passes through the pipes of polyethylene grid laid in a layer of concrete, which, together with the floor covering is the heating stove and gives off heat to the environment. In the design shall take the following allowable temperature of the floor: living quarters, offices - 29 ° C, the zone adjacent to the windows, - 35 ° C, the bathrooms - 33 ° C. Underfloor heating system is divided into several parallel individual circuits (resistance to the flow path must not exceed 20 kPa) with the water temperature the same in each circuit. Can also be used as a combined system of floor heating and convection heating using conventional heating devices. Constructive solution is the following. On concrete base overlap with the expanded polystyrene foam glued foil with a printed grid that facilitates the mounting spiral pipe with a certain step. Pipes are laid directly on the foam and secured with clips driven into the foam. Heating water is poured concrete during the concreting of the pipe must be under pressure 0.3 MPa until the commissioning of equipment, after hardening of concrete, that is in 20-28 days. Required thickness of the concrete casting of pipe is 5 cm, which amounts to the total thickness of the concrete layer of about 6.5 cm, measured from the surface of the foam. Disposable filling surface should not exceed 40 m2, and the length of the border screed 8 m, otherwise you need to separate the seams width 0.5 cm, filled with strong elastic material. Floor Covering plank directly on the concrete casting. The thermal resistance of coatings shall not exceed 0.15 m2.K/Vt. Types of coverage can be very different (parquet, ceramic, synthetic materials, stone, etc.). Due to the fact that the type of coating significantly affects the net output of heat with underfloor heating, its design should be considered at the design stage. The thickness of thermal insulation depends on the purpose of the overlap: on the heated room - 3 cm above the unheated or floors on the ground - 5 cm in the case of joint exploitation of the underground heating and traditional parameters of 95-70 ° C is required mixing system, lowering the temperature of the coolant. In a system of underground heating applied specifically designed by the Italian firm regulators in charge of regulation of temperature in the room depending on outside air temperature, measured by the sensor outside air temperature sensor and coolant flow. In the system of regulation is also a sensor that is installed in the concrete covering the heating pipes. It transmits temperature, which is the lowest near the underground heating system pipes, the sensor, which, while under the influence of air flow, reduces the room temperature and increases the relative humidity. When the humidity of the inner layer floor exceeds certain limits, the sensor transmits a signal to the controller, and he in turn being associated with a mixer, increase the coolant temperature underfloor heating system to avoid wetting the floor surface. Then, the controller returns to the usual mode of operation. In the heating system at the distribution reservoirs have thermostatic controls in which the opportunity to achieve the required temperature in a particular part of the premises by installing a set point temperature of the thermostatic control to the desired value. As a result, the thermostat controls the actuator, located on the collector coolant flow along the contours of floor heating. Installing the system is simple, does not require much time for installation, has many advantages and is today a comfortable and efficient heating system suitable for a variety of projects.