The possibility of human heat on the street - it is solvable problem, the simplest example of a solution to this problem - the fire. But the bonfires can not everywhere, and this process requires the constant attention of a man. And the need to be heated during the cold season outside heated buildings occurs frequently: in the flats - on the balconies, in private homes and cottages - on the outdoor veranda and garden furniture. In this heating using heating units that initiate the convective air flows, such conditions not suitable - the movement of ambient air will not be accumulated in the heat the actual area.
The solution is the use of infrared heaters, whose operation is specific and the energy they consume - well studied.
Let us consider what constitutes an infrared heater to the streets if necessary to purchase it easier to make a choice, and in-service - to avoid problems.
The operating principle of infrared heaters
Any heated body becomes a source of infrared radiation, whose intensity is directly proportional to the temperature of the radiator.
By and large, convectors are also a source of infrared radiation, but the share of heat transferred at their work via rays, compared to small heat transfer distance, as the heat exchanger temperature reaches the high values. Therefore, they call them convectors - basic method of heating.
A IR heaters to 80-90% of the fuel energy consumed by definition is converted into infrared radiation, which is used for heating. Infrared rays reaching items on the propagation path to increase the intensity of the Brownian motion of molecules on their this surface and at a certain depth, the temperature was raised obstacle bodies which themselves become wherein heat exchangers.
The length of the infrared radiation, depending upon the emitter temperature is in the range from 0.74 to 2000 microns. The shorter the wavelength, the higher the frequency of the radiation, and so a greater depth warmed subject.
Important! When radiant energy transfer occurs transit heating medium - air, so in the closed smokers low heat loss - heated by infrared rays to the objects give off heat air room. On the street heat loss during operation of infrared heaters is still significant, as the release of heat occurs in the mobile objects of the atmospheric environment.
Function outdoor heating units
Infrared heaters outdoor use are used for the following purposes:
- Heating local areas of open space and a semi-open space for comfortable stay of people (children's playground, outdoor sitting area, terrace, garden furniture, porch, etc.);
- protection of trees Limited frost during frost;
- heating local areas livestock purpose buildings (young cattle, etc.)
- De-icing to prevent injury - heated exterior staircases, ramps and porches;
- Technology warming grounds during their finishing in the cold season.
List of places of application of the heater street You can continue, but without this clear - infrared unit in some cases irreplaceable.
Species used in the open space of the IR heaters
If not treated secondary characteristics (mounting method of manufacturing material, size, performance class), the main unit for IR heaters applications on the street - by type of energy source used.
Street heater, depending on the design, as a fuel gas or electricity consumption.
Electric infrared heaters
IR heaters electricity - modern, efficient heating appliances which can be used both indoors and outdoors.
Models for outdoor use, as a rule, more powerful and better protected from the effects of atmospheric moisture.
Apparatus IR heater electricity
Electric infrared heaters outdoor use consist of a metal housing in which are arranged a source IR radiation reflector mirror reflector and auxiliaries (protective grille elements and control systems security).
A generator of infrared radiation lamps are different structures (quartz halogen) or ceramic heating elements.
Depending on the design the place of installation, different models of electric street IR heaters can be tripod or suspended execution.
Tripod, in turn, differ in the reflector - vertical or horizontal.
Rules of installation and operation of electrical infrared heating units
When using electric infrared heaters on the street, consider the following:
- the distance from the source to the point of finding long-term human needs to be not only comfortable, but also secure (0.7 m - a heater power up to 0.8 kW, not less than 1 m - at 1-1.5 kW, not less than 2 m - 2 kW and more);
- combustible objects also have a sufficient distance from flammable objects (at least 1.5 m);
- electrical supply cables must not be laid on the surface of the ground without protection device;
- infrared heaters - stationary ceiling and wall placement should not be located in the open and be exposed to precipitation (rain, snow) and splashing;
- IR heater must be grounded.
Important! Choosing an electric infrared heater street for a specific location, you should know the following principle of calculation - for heating of 1 m square. area requires at least 150 watts of power unit.
Infrared gas heaters
The operating principle of these devices is also based on energy transfer by means of long-wave radiation, but the radiator is used for heating the heat energy obtained from the combustion gas. Due to the relative cheapness of fuel used, the street gas heaters devices are more economical than electric, which leads to their widespread use in addressing the issue of heating the outer areas.
The construction and use Infrared heaters gas
Street gas infrared heater housing is one of several types, wherein the installed burner for burning gas, heated by it IR emitter (metal grid or plate), a reflector-specific reflector design, the ignition device, as well as management and security mechanisms security.
Such heaters for preview, depending on the design, equipped with regular gas cylinder, installed in the housing, or designed for connection to a remote container with gas by hose.
with a conventional consumable balloon with the standard cylinder, with a universal connection for one of the types of bottle.
All gas heaters for outdoor use, regardless of the design and dimensions, have a significant advantage over electric infrared heaters - are portable units that eliminates the need to carry on to the device permanently or temporarily wiring.
So when buying know how to choose a street gas heater, consider the design features of the models produced heating units for the street.
For the convenience of infrared heaters for summer terraces, houses with balconies, and other semi-open areas should be more compact and have a constructive opportunity to focus the infrared radiation that allows direct heating in the actual zone. In such circumstances, rational solution is to use ceramic floor units in the form of rectangular pedestals, in the housing which is the regular gas cylinder, or lung ceramic heaters to be connected to the reservoir via hose.
Such devices have not one burner nozzle, and with several - small size, are uniformly heated ceramic emitter over the entire area up to a temperature of 800-900 degrees and provide a soft, comfortable perceived directed heat. Fanless design makes the unit work completely silent.
Light heating devices with remote connectivity even more easy to use - change the direction of their activities done at all without the use of considerable physical effort.
Dacha in the gazebo with benches located on the inner perimeter in the winter is very convenient to use gas heaters of medium height with a circular heating. As a rule, all such models of medium size and are designed to move by one person.
For heating terraces, recreation areas in the open air and other open areas during the cold season is the most popular gas heater in the form of a streetlamp, executed in a retro style. The apparatus is a base in the form of a cylindrical enclosure for positioning the cylinder and mounted on it a vertical rod with a burner, a conical emitter and the top reflector.
Gas from the cylinder is supplied to the burner, there is ignited via the piezoelement and heats mesh emitter. Reflector reflector limits the propagation of infrared radiation radius of the circle around the stem about 6 m, and the severity of the container, which container can be up to 50 liters, provides sufficient stability of the heater.
Important! Despite the sufficient stability of the unit, the safety system of any gas heater varieties for street Applications include the automatic termination of the gas supply apparatus or rollover blowing burner.
Terms of Use gas infrared heaters
When operating the outdoor heaters should always be mindful of gas that gas equipment related to the group high-risk use of instruments, and a violation of the treatment of these devices rule is fraught with unpredictable consequences.
The gas heaters outdoor use can be used propane or butane as well as the use of the open air natural gas because of its low calorie content is not effective. But liquefied gases also have different calorific values, so in the warmer months to Application suitable both types of fuel, in the winter period is more effective propane, caloric which is higher.
Important! All infrared gas heaters for outdoor use are the direct heating devices, that is, the exhaust outlet they have. Therefore their use in confined spaces in the presence of occupants is permissible only if intensive ventilation with a sufficient supply of fresh air and discharge of combustion gases.
conclusion
Comparing the two types of outdoor infrared heaters - electric and gas can be said that the use of units of electricity more efficiently over a short use, as the consumption of electricity powerful units for outdoor use much. Operation of the gas heaters is much cheaper because of the relative cheapness of gas without the need for the construction of the chimney on the street.
The main essence of the article
- Infrared heating device on the street - an effective and affordable device.
- Efficiency of use of outdoor heaters due to their principle of action - the action of IR radiation is not a transit environment and the obstacles on the propagation path.
- Street infrared heaters are available in two types - electric and gas. When choosing a device for external heating under specific conditions, it is necessary to know the characteristics of both types of units with reference to the nuances of the application on the street.
- Electrical outdoor heaters - environmentally friendly equipment, but requires protection from atmospheric moisture. Furthermore, the cost of electricity consumed by the power devices external use even for a short period of time, is significant.
- Gas infrared heaters for outdoor use - efficient, economical and easy to use device. Choosing the gas unit, it is only necessary to take into account the conditions of use and the requirements to it in these conditions.
- Advantages of gas heating units do not cancel the operating rules that are binding in the operation of gas equipment - increased danger of devices.
