Industrial heaters and heaters. Siabs Kaliente gas heat generators – elegant heating

Gas convectors are independent heating equipment, representing a real alternative to traditional heating appliances. They provide not only the ability to maintain a predetermined temperature in the range from 8 to 33 ° C in a heated room, but also allow you to set different temperatures in different rooms.
Convectors work on the principle of combustion natural gas in a metal heat exchanger that provides highly efficient heat transfer to the room. At the same time, combustion products are discharged to the outside and combustion air is taken in. This ensures the environmental cleanliness of the room and its effective ventilation.

Compared to a traditional heating system, which requires boilers, radiators, piping around the room, fittings, pumps and other components, when using convectors, all this equipment is not required, since there is no water circuit. It is this feature gas convectors allows them to be used for efficient heating country houses, cottages, garages, greenhouses, etc. The gas-air mixture in these devices is ignited either by a spark from the electronic unit or by the wick of the ignition pilot burner, which, in turn, ignites when the button of the built-in "piezo lighter" is pressed. In the latter case, the supply of electrical energy is not required.

Rice. 91. : A - general form; B - section (in mm); 1 - igniter; 2 - control panel; 3 - tray for ignition of the burner; 4 - impulse lines; 5 - gas valve; 6 - chimney

An example of such equipment is the gas-air heater AOG-5, appearance and the installation option of which is shown in Fig. 91. The device is designed for space heating up to 30 m2. The main components of the device: housing, combustion chamber with a smoke outlet and an air supply channel, a wall channel with a grate, solenoid valve with thermocouple, piezoelectric ignition device. The control panel for the gas valve, the buttons for turning on the solenoid valve and the ignition device are located on the front wall. The device does not require a special chimney, as it is equipped with a wall channel through which combustion products are removed and outside air is supplied to the furnace. The heater is equipped with safety automatics that cut off the gas supply to the main and pilot burners when the igniter flame goes out. Technical characteristics of the AOG-5 air heater are shown in Table 10.

Table 10. Technical characteristics of the AOG-5 heater

Rice. 92. Gas fireplace "Amra": 1 - injection burner; 2 - collector-heat exchanger; 3 - solenoid valve; 4 - gas supply; 5 - smoke outlet

The AMRA gas fireplace is a radial-convective type device (Fig. 92). The burner of infrared radiation GIIV-1 with a heat output of 35 - 46 kW is installed in a stamped steel sheet fireplace body. Primary combustion air enters the burner through openings in the bottom of the body, and the combustion products are discharged into the chimney through a heat exchanger into a pipe in the rear wall of the fireplace. Air from the room enters the walls of the heat exchanger through slotted holes in the walls of the housing, heats up and exits into the room. The fireplace is equipped with a safety automatic that cuts off the gas when the flame goes out. The device runs on liquefied gas supplied through a pressure regulator from a cylinder with a capacity of 27 liters. One cylinder ensures the operation of the fireplace in normal mode for 45 hours.

The Czech company KARMA supplies the Russian market with beautifully designed and equipped with multifunctional automation devices of the BETA series with electronic spark or pilot burner ignition of the main burner. Consumer and performance characteristics This device can satisfy any, even the most sophisticated, taste. However, the price of this heater deters the broad masses of consumers. So, heaters of the BETA-Comfort-Electronic model with a power of about 4 kW cost about 420 dollars. USA. Functionally almost equivalent, but much cheaper air heaters from MORA (Czech Republic) and FASER (Poland). Various Models of these devices have a power in the range of 2-5 kW and are very similar in technical specifications, which include:

• the ability to work on bottled and natural gases in the pressure range of 50 - 200 mm of water column;
• kindling working burner from the wick of the ignition pilot burner, ignited from the button of the built-in piezo lighter;
• ensuring complete safety (stopping the gas supply when the pilot burner is extinguished or in case of violation of gas-air exchange with external environment);
• automatic maintenance of the air temperature in the heated room at a given level (within +10 - +30°C) by smoothly changing the power of the burner or turning it on and off;
• quick response of the heater to possible temperature changes environment and optimal gas flow, which is provided by a low-inertia steel heat exchanger;
• the ability to work stably with wall thicknesses from 5 to 60 cm.

Comparative characteristics air heaters MORA (model 6101) and FASER (model JGK-F4.2), having the same power of 4.2 kW and capable of heating a room up to 42 m2, at an average temperature of 100 W/m2 and a ceiling height of 2.5 - 3 m, are given in table 11.

Table 11. Comparative characteristics of MORA and FASER air heaters

Foreign-made heaters can compete with " heat guns"TROPIK" series of domestic production. These fan heaters have a unique and most complete set consumer qualities and a number of advantages over any domestic counterparts, and a relatively low price allows them to successfully compete with the famous imported trendsetters of the "heating fashion". Wide the lineup(heating power from 2 to 15 kW) makes it possible to choose suitable model"TROPIK", and the beautiful design will fit well into the interior of any apartment or office. The silently working fan does not create inconvenience when listening to quiet music, and the convenient control system provides the ability to work at full or partial heating power. Fan heaters "TROPIK" are equipped with a double thermal protection system (bimetal thermostat and thermostat), which will eliminate overheating and disconnect the device from the mains in case of an emergency.

The principle of operation of night vision systems is based on the combustion of natural gas in a stream of heated air, which ensures 100% efficiency.
NVG systems consist of a section of air duct, inside which a modular burner unit is located. The gas pipeline with control and shut-off valves is installed outside the air duct. The system is equipped with automatic ignition, flame control and safety, an intelligent temperature controller that allows you to produce heat in strict accordance with needs. Areas of use: Air heating of industrial premises - perfect solution heating problems for industries with a large volume of supply air. Heating up frozen materials in wagons and on railway platforms - the most reliable and economical way of defrosting, due to the low inertia and the absence of a water cycle. Air curtains road and railway gates allow you to cut off the flow of cold air. The possibility of prompt shutdown saves natural gas. Two-stage air heating. Intermediate heating of air by burning natural gas, followed by heating in a water heater. Air preparation for spray booths, a simple way to supply a large amount of clean and dried air at a given temperature to the spray booth. Drying: textiles, paper, grain, malt... The temperature controller allows you to supply the optimal drying agent, suitable for the purity of food drying.
Advantages of direct air heating systems:Compliance. The technology of ultra-clean combustion of natural gas ensures exact compliance with GOST 12.1.005-88 "General sanitary and hygienic requirements for the air of the working area" and SNiP 2.04.05-91 "Heating, ventilation and air conditioning". High fuel efficiency. All chemical heat of the combusted gas is transferred to the air. Heat losses inherent in boilers and heating mains are completely eliminated. Exceptional reliability and long service life. The design of the burner block tested in the conditions of the north and right choice materials provide high reliability heat supply. No water cycle. Versatility. The modular design allows you to assemble a burner unit of any configuration and power from 150 kW to 20 MW and more. Low installation and operating costs. Use of existing ventilation systems. No special combustion chamber, lining or additional fan required. Flexible temperature control and inertia. The production of heat in strict accordance with the needs significantly reduces gas consumption. Fast payback. The payback period is not more than one heating season. Our customers have repeatedly noticed that by investing in night vision systems, they received not just equipment, but clean air and heat at workplaces, a significant reduction in heating costs, an increased production culture, stable product quality and increased profits.

Administrative, industrial, economic and many other premises. These include water heating batteries, various convectors, heat guns, infrared heaters and much more. A gas heater is another modern heating device that is optimally suited for heating any type of premises and even outdoor areas.

In this review, we will look at:

• main types of gas heaters;
• principles of operation of devices;
• advice on the selection and purchase of such devices.

We will also tell you where and how to make the most profitable purchase.

The principle of operation of gas heaters

The devices are represented by a large selection of various models that differ in the principle of operation and power. All these devices have one thing in common - they run on liquefied or natural gas, converting it into thermal energy . can serve as a gas source gas cylinders or gas line. themselves heating appliances divided into stationary and portable.

Heat guns heat the room by burning gas. They are quite economical, like all gas-powered appliances.

Stationary gas heaters are convectors or heat guns powered by mains or bottled gas. They are mounted permanently in the premises and are used as the main sources of heat. Such devices are large in size and high performance, and for their operation you need a chimney to remove combustion products.

Mobile (portable) models are designed for temporary or semi-permanent operation. They are small in size and less productive. Most often, such models are made in small-sized cases for floor installation. They are optimal for heating cottages, private houses and utility rooms in which there is no centralized gas supply.

According to the principle of operation, heaters are divided into several categories:

• infrared;
• catalytic;
• convection.

The principle of operation of infrared heaters is very simple - burners with metal and ceramic emitters are located inside them. When heated, they begin to emit infrared waves (thermal radiation). At the same time, the air near the heaters remains practically cold - only surrounding objects are heated. Depending on the power, they can warm enough large rooms and open areas.

In the combustion chamber of the catalytic device, combustion as such does not take place, a chemical reaction takes place there.

Catalytic gas heaters are built on the principle of natural or liquefied gas oxidation. There is no flame here, and heat generation is provided by a chemical reaction. The gas enters a special catalytic panel, where it begins to oxidize, contributing to the generation of heat. Heating is carried out according to the convection, infrared or mixed principle of operation.

Convection gas heaters possess extremely simple device- they are based on conventional burners in which fuel is burned. Air heating is carried out with the help of special ribbed radiators. Due to convection, the heated air rises, after which colder air masses enter its place. Two to three hours after the launch of such devices in heated rooms, it becomes noticeably warmer..

Infrared gas heaters can create heat not only by burning gas, but also by catalytic oxidation. Some models of such devices create flows of thermal radiation and provide convection - thereby achieving quick and efficient heating of the premises.

Types of gas heaters

There is a fairly large selection of heaters on the heating market. They differ in their principle of action and scope of use. Let's look at some models from some categories in more detail.

As we have already said, catalytic devices warm rooms not due to direct combustion of gas, but due to its oxidation. As a result, we get absolutely silent and fireproof heating equipment. There are no burners, no raging and hissing flames. Heat is generated by a chemical reaction taking place on the surface of the catalytic panel. What are the advantages of this equipment?

• Extreme compactness - catalytic gas heaters have minimal dimensions.
• No products of combustion - heaters do not burn oxygen and do not emit combustion products, which include carbon monoxide and carbon dioxide.
• Autonomous operation - such devices do not need electricity.
• Economical fuel consumption - gas consumption of such devices is minimal.
• High level of safety - the absence of burners and open flames is a good protection against fires.

Despite the safety of catalytic heaters and the absence of hazardous combustion products, their operation in enclosed spaces is not allowed - good ventilation must be ensured.

Catalytic heaters are very efficient heat generators. It is transmitted to heated rooms in two ways - by convection or by infrared radiation. Some models use double scheme heating. To improve performance and warm-up speed, select models are equipped with fans that provide fast and uniform distribution heat.

Infrared gas heaters

If catalytic gas heaters are used primarily for space heating, then infrared devices with burners can also warm open areas - playgrounds near swimming pools, sports and playgrounds, country verandas, as well as open terraces restaurants and cafes. The principle of operation of such devices is to generate infrared (thermal) radiation due to gas combustion and heating of the radiating elements. The radiation does not heat the air, but the surrounding objects, which allows you to gently warm the premises and open areas.

Infrared radiation is generated by ceramic and metal heating elements, and built-in reflectors are used to create a directional zone. Thanks to this design, infrared heaters have a decent range - for example, outdoor models can warm objects within a radius of up to 5-6 meters. And this figure is very attractive.

Natural or liquefied gas acts as fuel for infrared heaters. Most often, consumers use bottled fuel, since infrared heating equipment belongs to mobile (portable) equipment. Some models are even equipped with slots for connecting built-in cylinders with a volume of up to 27 liters - such devices are made in the form of a monoblock with a built-in (plug-in) cylinder.

If you plan to use indoors, nothing prevents you from connecting the infrared to the gas line using a flexible hose.

Infrared devices are great for heating open areas, as they do not heat the air, but the surrounding objects.

Advantages of infrared gas heaters:

• the possibility of heating open areas and territories - other heating equipment is focused exclusively on internal use;
• high efficiency - infrared heaters are able to quickly heat up a fairly large area and volume of the room;
• autonomous operation - the vast majority of devices do not require connection to the electrical network.

There are also some disadvantages:

• devices with this principle of operation burn oxygen - when used indoors, good ventilation(at least open windows);
• low Fire safety– despite the maximum security, infrared gas heaters can cause a fire.

The combination of advantages and disadvantages is really interesting, and here there is a clear advantage in the direction of pluses. Therefore, infrared gas heaters have become an excellent heating equipment for indoors and outdoors.

Some devices can warm not only due to thermal radiation, but also due to convection of hot air - the dual scheme of operation allows you to count on quick warm-up.

Are you planning to buy a gas heater, but you can't decide on a model? To heat outdoor areas, we recommend purchasing a device in the form of a tall lamp - it will create a circular heating zone and allow you to quickly heat a terrace, veranda, area around a swimming pool or an outdoor playground. For heating utility rooms, any floor model is suitable.

Gas convectors have a good design and can replace standard heating radiators.

As for space heating, in this case it is desirable to use catalytic models - they provide a safer generation of heat from gas. If there is a need and opportunity, you should look at stationary gas convectors. They have high performance and can heat large areas.

The disadvantage of gas convectors is that they require a chimney for their operation - for example, a coaxial one used in conjunction with heating boilers with closed combustion chamber.

Where to find the best prices and buy a gas heater with the maximum benefit for your wallet? Try looking at "Yandex.Market". Here you can find the most suitable model according to its characteristics and filter the list of offers at the lowest price. Good prices can be found in many chain stores outside the heating season.

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