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2020-4-13 · Every type of steel tube and pipe can be manufactured. 2 NIPPON STEEL Boiler Steel Tubes and pipes Activity . 4 Three Mainstays of Reliability . 6 1 Integrated production system . 7 2 Quality assurance system . 12 3 Research and development system . 14 Developed Seamless Tubes and Pipes Products for Boilers . 16 S-TEN™1 . 18 CR1A . 19 HCM2S ...
Get Price2021-7-19 · The coal fired boiler types in Indonesia includes DZL model and the SZL model. The demand for steam boilers in the textile industry is very high, whether it is for dyeing or drying and other production processes, so the efficiency of steam boilers has a direct impact on the productivity of textile mills and is also a guarantee of textile quality.
Get PriceDisadvantages of shell boilers: The package principle means that approximately 27 000 kg/h is the maximum output of a shell boiler. If more steam is required, then several boilers need to be connected together. The large diameter cylinders used in the construction of shell boilers effectively limit their operating pressure to approximately 27 bar.
Get PriceTHREE PASS OIL/GAS FIRED FULLY AUTOMATIC SMOKE TUBE STEAM BOILER. TECHNICAL SPECIFICATION: i – Type – Horizontal, 3 pass, Fully Wet Back , IBR approved Smoke Tube boiler. ii – Capacity – 1000 Kg/hr to 60000 Kg/hr (F & A 100° C) iii – Working Pressure – Std. 10.5 Kg/cm2 (g), 14.06 Kg/cm2 (g), 17.05 Kg/cm2 (g) and above with water tube design also available.
Get PriceTemperature. 1200-1300 deg C. Savemax – Oil & Gas Fired Boiler are the basic 3 pass internal furnace smoke tube type design in which flue gases are inside the tubes while water is outside the tubes in the shell. The combustion of oil and gas in a furnace requires atomization of the fuel.
Get PriceThe Shell Tube Type Boiler we manufacture is a horizontal shell & tube type steam boiler available from 500 kg/hr to 5000 kg/hr. owning to the high efficiency due to …
Get Price2014-9-11 · The shell and fire box both are hemispherical.The fire box and combustion chamber is connected through a short pipe.The flue gases from the combustion chamber flow to the smoke box through aWORKING OF AN COCHRAN BOILER number of smoke tubes.The gases from the smoke box pass to the atmosphere through a chimneyThe external diameter of pipe is 62.5mm and are 165in number.Manhole is provided for cleaning.COCHRAN BOILERLANCASHIRE BOILER The boiler consists of a long cylindrical external shell …
Get Price2021-8-13 · A steam boiler is a steam producing heating system; it produces energy by heating water to create steam. A steam boiler burns fuel to heat water. The combination of heat and water produces steam. Steam boilers are defined by their construction, portability, types of tubes, types of fuel, and the pressure they produce.
Get Price2019-10-13 · The steam boiler is used in a variety of industries, with the main applications listed below. Food industry: The steam can be used for cleaning, as well as heating, drying or disinfecting food. Spinning, printing and dying industry: used for dying, rinsing and shaping of cloth. Biological medicine industry: used for heating reaction kettles, condensation reaction, exchanging heat and ...
Get Price2020-9-16 · The gas steam boiler adopts the boiler shell type three return journey, full wet back structure. The fuel is slightly positive pressure burning in the furnace bile, and the high-temperature flue gas enters into the flue tube bundle along the furnace bile through the backburner chamber, and enters the second tube bundle through the compression front smoke box turning 180°, and enters the ...
Get Price2020-4-13 · Every type of steel tube and pipe can be manufactured. 2 NIPPON STEEL Boiler Steel Tubes and pipes Activity . 4 Three Mainstays of Reliability . 6 1 Integrated production system . 7 2 Quality assurance system . 12 3 Research and development system . 14 Developed Seamless Tubes and Pipes Products for Boilers . 16 S-TEN™1 . 18 CR1A . 19 HCM2S ...
Get Price2021-7-19 · The coal fired boiler types in Indonesia includes DZL model and the SZL model. The demand for steam boilers in the textile industry is very high, whether it is for dyeing or drying and other production processes, so the efficiency of steam boilers has a direct impact on the productivity of textile mills and is also a guarantee of textile quality.
Get PriceDisadvantages of shell boilers: The package principle means that approximately 27 000 kg/h is the maximum output of a shell boiler. If more steam is required, then several boilers need to be connected together. The large diameter cylinders used in the construction of shell boilers effectively limit their operating pressure to approximately 27 bar.
Get PriceTHREE PASS OIL/GAS FIRED FULLY AUTOMATIC SMOKE TUBE STEAM BOILER. TECHNICAL SPECIFICATION: i – Type – Horizontal, 3 pass, Fully Wet Back , IBR approved Smoke Tube boiler. ii – Capacity – 1000 Kg/hr to 60000 Kg/hr (F & A 100° C) iii – Working Pressure – Std. 10.5 Kg/cm2 (g), 14.06 Kg/cm2 (g), 17.05 Kg/cm2 (g) and above with water tube design also available.
Get PriceTemperature. 1200-1300 deg C. Savemax – Oil & Gas Fired Boiler are the basic 3 pass internal furnace smoke tube type design in which flue gases are inside the tubes while water is outside the tubes in the shell. The combustion of oil and gas in a furnace requires atomization of the fuel.
Get PriceThe Shell Tube Type Boiler we manufacture is a horizontal shell & tube type steam boiler available from 500 kg/hr to 5000 kg/hr. owning to the high efficiency due to …
Get Price2014-9-11 · The shell and fire box both are hemispherical.The fire box and combustion chamber is connected through a short pipe.The flue gases from the combustion chamber flow to the smoke box through aWORKING OF AN COCHRAN BOILER number of smoke tubes.The gases from the smoke box pass to the atmosphere through a chimneyThe external diameter of pipe is 62.5mm and are 165in …
Get Price2021-8-13 · A steam boiler is a steam producing heating system; it produces energy by heating water to create steam. A steam boiler burns fuel to heat water. The combination of heat and water produces steam. Steam boilers are defined by their construction, portability, types of tubes, types of fuel, and the pressure they produce.
Get Price2019-10-13 · The steam boiler is used in a variety of industries, with the main applications listed below. Food industry: The steam can be used for cleaning, as well as heating, drying or disinfecting food. Spinning, printing and dying industry: used for dying, rinsing and shaping of cloth. Biological medicine industry: used for heating reaction kettles, condensation reaction, exchanging heat and ...
Get Price2020-9-16 · The gas steam boiler adopts the boiler shell type three return journey, full wet back structure. The fuel is slightly positive pressure burning in the furnace bile, and the high-temperature flue gas enters into the flue tube bundle along the furnace bile through the backburner chamber, and enters the second tube bundle through the compression front smoke box turning 180°, and enters the ...
Get Price2020-9-19 · The new type DZH boiler is the longitudinal boiler shell boiler with single boiler barrel and the burning equipment is the movable grate. The water cooling walls on the left and right sides of the furnace are firing ... LHS Oil and Gas-fired Boiler. Oil and Gas Fired Hot Air Boiler. Boiler Burner.
Get PriceCoil type steam boilers are designed to operate on a wide range of liquid and gaseous fuels including diesel fuel, heavy oil, light oil, gas, etc. Smoke Type Industrial Boilers Smoke Tube Steam Boiler consists of the main shell with tube sheet welded with smoke tube and integral furnace, where flue gas travels through a furnace and smoke tube ...
Get Price2021-5-27 · Gas(oil) Fired Vertical Steam Boiler. The shell-type fire tube structure is adopted, and the flame is burned downward to enhance the heat transfer effect, thereby reducing the convective heating area; the flow resistance of the flue gas is small, the running power consumption is …
Get PriceOil Fired Steam Boiler. WNS series is a firetube horizontal steam boiler, with classical shell design: firetube+ wetback+ 3pass. Its average thermal efficiency >95%, design working life span more than 15years. Equipped with well-known auxiliary parts, such as BALTUR/RIELLO- Burner, DANFOSS- Pressure Controler, SIEMENS- PLC operation system, LEO ...
Get PriceEstablished in 2010, we, I - Con Trading Corporation is a prestigious business entity engaged in trading, supplying, distributing, manufacturiung, exporting, importing, retailing and wholesaling a pristine assortment of Industrial Equipments & Furnaces. Under this range, we offer Burner Sequence Controllers, Oil & Gas Burner Controls, Flame Sensor, Shell Type Solid Fuel Fired Steam Boilers ...
Get Price2020-4-13 · Every type of steel tube and pipe can be manufactured. 2 NIPPON STEEL Boiler Steel Tubes and pipes Activity . 4 Three Mainstays of Reliability . 6 1 Integrated production system . 7 2 Quality assurance system . 12 3 Research and development system . 14 Developed Seamless Tubes and Pipes Products for Boilers . 16 S-TEN™1 . 18 CR1A . 19 HCM2S ...
Get PriceSteam Gas Boiler China Manufacturer Taiguo Boiler 0.5/1/2/3/4/5/6 Ton Industrial Boiler. Featured Product. FOB Price: 6000 - 285000 Set. Min. Order: 1 Set. 1. Product Description WNS series horizontal internal combustion boiler is a boiler shell type 3 passes wetback oil/gas fired boiler.
Get Priceflue gas measurement of oil boiler in sri lanka. price in Oceania and - 2019-3-20 · hr are designed to burn both crude and READ MORE shell type flue tube steam coal threaded flue pipe single drum steam…
Get Price2012-6-28 · The heart of an industrial boiler system is a hot water or steam boiler operated with a certain kind of fuel. The boiler heats up or evaporates the water inside it, which is then transported to the consumers via pipe systems. In case of hot water the transport energy is generated by pumps, in case of steam the transport is based on inherent ...
Get PriceWNS gas (oil) fired split steam boiler. This series of boilers is designed with a classic shell type, full-wet back, down-flow and three-pass design structure. The fuel is fully burned in the large-capacity combustion chamber, and the combustion heat load is low, which can greatly reduce the emission of harmful substances such as CO and NOx.
Get PriceDisadvantages of shell boilers: The package principle means that approximately 27 000 kg/h is the maximum output of a shell boiler. If more steam is required, then several boilers need to be connected together. The large diameter cylinders used in the construction of shell boilers effectively limit their operating pressure to approximately 27 bar.
Get PriceHorizontal fire tube boiler with gas-water heat pipe heat exchanging tube at the end. Compact fire tube boiler with turbocharged combustion. Horizontal fire tube boiler built-in smoke box type soot blower. Circular combustion chamber for horizontal oil and gas fired boiler. Combustion chamber of horizontal oil or gas fired steam boiler.
Get Price2002-8-21 · Gas Power Station Boiler is the same name of Gas Power Plant Boiler. It is another type of gas steam boiler used to generate electricity. In May 2019, power plant boiler manufacturer Taishan Group won a project of changing coal into gas. The project consists of …
Get Price2019-10-13 · The steam boiler is used in a variety of industries, with the main applications listed below. Food industry: The steam can be used for cleaning, as well as heating, drying or disinfecting food. Spinning, printing and dying industry: used for dying, …
Get Price2021-5-27 · Gas(oil) Fired Vertical Steam Boiler. The shell-type fire tube structure is adopted, and the flame is burned downward to enhance the heat transfer effect, thereby reducing the convective heating area; the flow resistance of the flue gas is small, the running power consumption is …
Get Pricesteam boiler. NBWB series. Steam production: 250 kg/h - 2,500 kg/h. Power: 176 kW - 1,758 kW. Pressure: 10 bar - 15 bar. Steam outputs from 250 kg/h to 2500 kg/h The NBWB series of Fire Tube Steam Boilers provides users with high quality dry steam …
Get PriceWNS gas (oil) fired split steam boiler. This series of boilers is designed with a classic shell type, full-wet back, down-flow and three-pass design structure. The fuel is fully burned in the large-capacity combustion chamber, and the combustion heat load is low, which can greatly reduce the emission of harmful substances such as CO and NOx.
Get Price2020-12-21 · Overview. Brief Introduction: SZS series oil and gas fired boiler is a packaged water tube boiler with double drums and D-type layout. It has lots of advantages such as sufficient burning, no pollution in the emission, convenient operation, easy installation etc.
Get PriceEstablished in 2010, we, I - Con Trading Corporation is a prestigious business entity engaged in trading, supplying, distributing, manufacturiung, exporting, importing, retailing and wholesaling a pristine assortment of Industrial Equipments & Furnaces. Under this range, we offer Burner Sequence Controllers, Oil & Gas Burner Controls, Flame Sensor, Shell Type Solid Fuel Fired Steam Boilers ...
Get Price2021-1-15 · A boiler is a bit more complex than a forced air furnace in that it has more parts, valves, and controls. However, gas-fired boilers are fairly reliable and when problems do occur, they are usually related to the expansion tank or water circulation pump(s). The major components of the boiler …
Get Price2016-3-6 · regulating the volumetric flow of gas or air. Downcomer - A tube or pipe in a boiler or waterwall circulating system through which fluid flows downward between headers. Draft - Draft is the negative pressure (vacuum) of the flue gas measured at any point in the boiler, expressed in millimeters of water column (kilopascals).
Get Price2020-4-13 · Every type of steel tube and pipe can be manufactured. 2 NIPPON STEEL Boiler Steel Tubes and pipes Activity . 4 Three Mainstays of Reliability . 6 1 Integrated production system . 7 2 Quality assurance system . 12 3 Research and development system . 14 Developed Seamless Tubes and Pipes Products for Boilers . 16 S-TEN™1 . 18 CR1A . 19 HCM2S ...
Get Price2021-7-16 · Gas(oil) Fired Split Steam Boiler This series of boilers is designed with a classic shell type, full-wet back, down-flow and three-pass design structure. The fuel is fully burned in the large-capacity combustion chamber, and the combustion heat load is low, which can greatly reduce the emission of harmful substances such as CO and NOx.
Get PriceDZL series package boiler is a horizontal three-pass water and fire pipe chain grate boiler, which uses medium-sized bituminous coal. The boiler body is vertical single drum, and the threaded pyrotechnic tube is arranged in the drum to form a convection heating surface, and the drum and the membrane walls on both sides constitute a radiation heating surface of the furnace.
Get Price2000-8-21 · Utica Boilers. 2201 Dwyer Ave Utica, NY 13501. www.ecrinternational.com. PEG-C. GAS FIRED BOILERS FOR STEAM HEATING. INSTALLATION, OPERATION & MAINTENANCE MANUAL. An ISO 9001-2008 Certified Company. H
Get PriceYongxing boiler group co. ltd is a leading and reputable steam boiler manufacturer in China. With 40 years of development, we have made a name as one of the top-class and outstanding boiler manufacturers. As a firm, we are known for our high quality and durable products that are capable of lasting their lifetime.
Get Price2021-7-2 · WNS series gas oil steam fire tube boiler is a kind of safe and high efficiency heating equipment with full automatic control system. This series oil gas fired boiler is horizontal type fast assembly fire tube boiler with three pass structure, it has compact structure, small volume, strong load adaptability and low water quality requirement.
Get Price2017-8-1 · Renewable Energy Manufacturers in the Philippines by Product Type … Product types: Coal Fired Boilers, Steam Turbine, Waste Heat Boiler, Power Plant, … of EOM products:- Industrial Radiators – Shell & Tube Heat Exchangers- Plate Heat … Carbon Steel Pipe suppliers in Philippines | API 5L Grade B Pipe …
Get PriceThe steam boiler adopts the combustion chamber with a low position, which makes the boiler water level safer, the boiler steam space is also larger, and the steam quality is well guaranteed. 5. The steel fined type economizer is arranged at the tail, the heat transfer efficiency is high, and the exhaust gas temperature after the economizer is ...
Get Price2021-8-19 · Viessmann Vitorond 100 Comfort VR1 Oil Fuel Cast Iron Shell Boiler, 87% AFUE, 105000 BTU Input, 92000 BTU Output. Extremely durable cast iron heat exchanger for maximum reliability and service life. Integrated stainless steel combustion chamber insert for clean and efficient combustion. Thick 3-1/2' insulation for extremely low standby losses ...
Get Price2000-8-21 · Utica Boilers. 2201 Dwyer Ave Utica, NY 13501. www.ecrinternational.com. PEG-C. GAS FIRED BOILERS FOR STEAM HEATING. INSTALLATION, OPERATION & MAINTENANCE MANUAL. An ISO 9001-2008 Certified Company. H
Get PriceWNS gas(oil) fired split steam boiler This series of boilers is designed with a classic shell type, full-wet back, down-flow and three-pass design structure. The fuel is fully burned in the large-capacity combustion chamber, and the combustion heat load is low, which can greatly reduce the emission of harmful substances such as CO and NOx.
Get Price2016-3-6 · design, fabrication, and inspection of gas and oil fired water tube boilers having steam outlet conditions not exceeding 750 psig and 800oF. REFERENCES Throughout this Standard the following dated and undated standards/codes are referred to. These referenced documents shall, to the extent specified herein, form a part of this standard.
Get Price2021-5-18 · LSH series vertical type biomass steam boiler is a small capacity boiler with horizontal water tubes. This vertical type biomass boiler adopts the general combustion techniques, the combustion equipment is moving grate, coal or biomass fuel was fed by workers manually.
Get Price2021-7-29 · The ST23 steam boiler range is available from: Rating (F&A 100ºC): 1000 kg/hr to 6000 kg/hr Standard Working Pressure: 10.34 Bar. All steam boiler designs are avail from 6 to 28 Bar. Steam Boiler, Model: ST25. Formerly the Cochran Borderer steam boiler utilises a …
Get Price2021-8-21 · In some steam drum designs, water level is extremely critical because the baffling may isolate a generating section of the boiler when the steam drum water level falls below a certain point. Thin-lipped bursts also occur in superheater tubes when steam …
Get Price2 Steam Boiler A steam boiler is a closed vessel, generally made of steel, in which water is heated by some source of heat produced by combustion of fuel and ultimately to generate steam.
Get PriceLancashire Boiler is a horizontal type and stationary fire tube boiler. This boiler was invented in the year 1844, by William Fairbairn. This is an internally fired boiler because the furnace uses to present inside the boiler. This boiler generates low-pressure steam and it is a natural circulation boiler.
Get Price2017-8-1 · Renewable Energy Manufacturers in the Philippines by Product Type … Product types: Coal Fired Boilers, Steam Turbine, Waste Heat Boiler, Power Plant, … of EOM products:- Industrial Radiators – Shell & Tube Heat Exchangers- Plate Heat … Carbon Steel Pipe suppliers in Philippines | API 5L Grade B Pipe …
Get PriceBoiler Superheater’s Manufacturing. Our superheaters are manufactured according to the IBR Regulations.Thermodyne manufactures both coil type and shell type superheaters depending upon the type of boiler and boiler capacity.. Coil type superheaters design generally consists of 180 o coils welded through the headers on both the sides. In a coil type designs steam is inside the coil and flue ...
Get PriceTHREE PASS OIL/GAS FIRED FULLY AUTOMATIC SMOKE TUBE STEAM BOILER. TECHNICAL SPECIFICATION: i – Type – Horizontal, 3 pass, Fully Wet Back , IBR approved Smoke Tube boiler. ii – Capacity – 1000 Kg/hr to 60000 Kg/hr (F & A 100° C) iii – Working Pressure – Std. 10.5 Kg/cm2 (g), 14.06 Kg/cm2 (g), 17.05 Kg/cm2 (g) and above with water tube design also available.
Get PriceThermax offers coil type steam boilers in the range of 50 to 850 kg steam per hour. The coil type boiler generates steam instantly and is extremely easy to install and commission. These boilers are safe, reliable and designed to operate on a wide range of liquid and gaseous fuels including heavy oil, light oil, gas, and dual fuel options.
Get Price2021-7-29 · The ST23 steam boiler range is available from: Rating (F&A 100ºC): 1000 kg/hr to 6000 kg/hr Standard Working Pressure: 10.34 Bar. All steam boiler designs are avail from 6 to 28 Bar. Steam Boiler, Model: ST25. Formerly the Cochran Borderer steam boiler utilises a …
Get PriceBoiler Superheater’s Manufacturing. Our superheaters are manufactured according to the IBR Regulations.Thermodyne manufactures both coil type and shell type superheaters depending upon the type of boiler and boiler capacity.. Coil type superheaters design generally consists of 180 o coils welded through the headers on both the sides. In a coil type designs steam is inside the coil and flue ...
Get PriceLancashire Boiler is a horizontal type and stationary fire tube boiler. This boiler was invented in the year 1844, by William Fairbairn. This is an internally fired boiler because the furnace uses to present inside the boiler. This boiler generates low-pressure steam and it is a natural circulation boiler.
Get Price2000-8-21 · Utica Boilers. 2201 Dwyer Ave Utica, NY 13501. www.ecrinternational.com. PEG-C. GAS FIRED BOILERS FOR STEAM HEATING. INSTALLATION, OPERATION & MAINTENANCE MANUAL. An ISO 9001-2008 Certified Company. H
Get Price2017-8-1 · Renewable Energy Manufacturers in the Philippines by Product Type … Product types: Coal Fired Boilers, Steam Turbine, Waste Heat Boiler, Power Plant, … of EOM products:- Industrial Radiators – Shell & Tube Heat Exchangers- Plate Heat … Carbon Steel Pipe suppliers in Philippines | API 5L Grade B Pipe …
Get PriceBoiler Gasket Materials. On the fire side of the boiler gasketing is usually done with fiberglass rope or tape. This can handle temperatures of more than 1,000°F. Another option is graphite foil, often formed into a spiral wound gasket for sealing flanges. On the water side the primary consideration is tolerance to steam.
Get Price2021-8-21 · In some steam drum designs, water level is extremely critical because the baffling may isolate a generating section of the boiler when the steam drum water level falls below a certain point. Thin-lipped bursts also occur in superheater tubes when steam …
Get Price2021-8-24 · Types of Package Boilers. The D-type Package Boiler. The D-type boiler has a water drum, steam drum, and generating tubes. Water flows into the steam drum, flows down the downcomers and into the water drum. Water is then sent from the water drum through the generating tubes, where the fire is located around causing water molecules to boil off ...
Get PriceThis system does not incorporate any form of Flue Gas Recirculation (FGR). The main air blower is a high-pressure, aluminum, dual taper radial type blower that is belt driven by a motor. The premix chamber on the E-series steam boilers is a rectangular duct with a gas diffusion pipe and mixing plates.
Get Price2021-1-18 · Gas Hot Water Boiler is another type of gas fired boiler. Another name is gas heating boiler. Gas fired boiler includes gas steam boiler and gas hot water boiler. Gas fired boiler has the advantage of high efficiency, low NOx emission, and good stability.. Usually, it has a gas fired burner located at the front wall for ease of operation and maintenance.
Get PriceWater-tube boilers differ from shell type boilers in that the water is circulated inside the tubes, with the heat source surrounding them. Referring back to the equation for hoop stress (Equation 3.2.1), it is easy to see that because the tube diameter is significantly smaller, much higher pressures can …
Get PriceIntroduction. Fire tube boilers, also known as smoke tube boilers, are the most common type of industrial boiler employed today. Compared to water tube boilers, they are much more suitable for smaller plant applications because they can better cope with sudden high demand steam fluctuations.. Combustion occurs within a furnace with the exhaust gasses (flue-gasses) passing through a series of ...
Get Price2021-8-4 · The DZL type biomass boiler developed and produced by Zozen Boilers is a single-drum vertical chain grate boiler that uses biomass pellets as fuel. It is a new generation of high-efficiency and energy-saving boiler products. The fuel biomass used in the biomass fired pellet boiler is an ideal renewable energy source, with a large amount of output every year.
Get Price2 Steam Boiler A steam boiler is a closed vessel, generally made of steel, in which water is heated by some source of heat produced by combustion of fuel and ultimately to generate steam.
Get Price2017-9-8 · 2. BOILERS Bureau of Energy Efficiency 27 Syllabus Boilers: Types, Combustion in boilers, Performances evaluation, Analysis of losses, Feed water treatment, Blow down, Energy conservation opportunities. 2.1 Introduction A boiler is an enclosed vessel that provides a means for combustion heat to be transferred into water until it becomes heated water or steam.
Get Price2019-12-5 · Steam-raising plant and boilers Figure 1 shows a sectional view of a typical steam-raising boiler. This is known as a shell and tube boiler and is the most common type. The hot gases from the burner go through the furnace tube and then back through the smoke tubes and out of the flue. The water is heated by the tubes and is contained by the ...
Get PriceWater-tube boilers may vary in design; however, their basic principles of operation are the same. This type of boiler consists of two drums, a series of water tubes, a feedwater inlet line, and a combustion gas outlet stack. These tubes are connected to a steam drum and a mud drum. The water is heated and steam …
Get PriceSteam Chimney PLTU Paiton in East Java Indonesia. Boiler house chimney at sunset sky background. Infrastructure of an apartment building. Roof with ventilation pipe and flue terminal modern. Roof with ventilation pipe and flue terminal air. Vapors coming out of natural gas boiler chimney.
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