Blowtorch - operating principle and how to choose it

Blowtorches, unlike soldering irons, are not designed for delicate work with instruments and electronics. These are powerful, energy-independent devices - heating is created by the combustion of liquid fuel or gas. Since the heating temperature in many models exceeds 1000˚C, a blowtorch can melt materials of increased hardness.

Before purchasing, you need to know exactly for what purpose the equipment is being purchased. There are a lot of offers in stores - on gasoline, on gas. Gasoline gives a higher temperature, but is quickly consumed, so liquid fuel burners are equipped with capacious and rather heavy fuel cylinders. Gas blowtorches are much lighter.

If you need a budget option, you can take a closer look at domestic brands. Many of them are not inferior to imported brands. For example, for “amateur” work, an inexpensive but good gasoline “Bison” is quite suitable. If you have a lot of work to do and require the power and increased functionality of a blowtorch, it is better to opt for a more powerful device like the Dremel Versaflame, which runs on gas. It will cost many times more, but it will be completely worth the money spent.

Top 5. SIBIN 40670

Rating (2021): 3.75

Compactness and lightness The gasoline-type device is distinguished by its simple design due to its small size and low weight, making it convenient for transportation and use in domestic conditions.

• Characteristics

  Average price: 950 rub.

• Country Russia
• Tank volume: 1.5 l
• Maximum operating temperature: 1100 degrees
• Ejector metal: steel
• Repair kit: yes

Despite its ergonomic shape and more modest size compared to many analogue models, the soldering tool is characterized by quite serious performance qualities. Heating after ignition occurs very quickly, which allows for special placement of the feed tube. A steel ejector in combination with a protective casing ensures a continuous supply of flame, the level of which can be adjusted with a special valve. Gasoline is consumed sparingly, so a fully filled tank lasts a long time. At the end of using the device, users recommend cleaning the nozzle with the included needle. The disadvantages include the inconvenient shape of the container for filling fuel and the insufficiently polished seam of the bottom of the tank.

Advantages and disadvantages

• Design dimensions 22.5x26x13 cm and weight 1.34 kg
• Fast heating to working condition
• Availability of protective casing
• Adjusting the flame level
• Long-term operation on one refill

• It is inconvenient to pour fuel into the ignition container
• Insufficient grinding of the bottom seam of the tank

See also:

• 10 Best Portable Gas Burners from AliExpress

How to choose a blowtorch

If you need a blowtorch, then pay attention to the following parameters when choosing:

1. Flame temperature
   . The burner torch can have a temperature of 1100-2000 degrees, which affects the heating rate and what materials the lamp can melt.
2. Ignition type
   . Models with piezo ignition are more convenient and safe because they are started by pressing one button. Otherwise, you will have to light the flame with matches or a hand lighter.
3. Weight and dimensions
   . The weight of a blowtorch varies from 200 g to 3 kg. The sizes of the equipment also vary. Take this into account when working in a confined space, such as a car engine compartment or a ventilation pipe.
4. Burning time
   . On one refill, the lamp can burn from 20 to 180 minutes. The higher the indicator, the longer you will be able to work without distractions for refilling or changing the cartridge.
5. Equipment
   . Soldering irons can be equipped with extensions and nozzles with different diameters, which expands their soldering capabilities. Having a suitcase simplifies the issue of transportation and storage.

Blowtorches come in gas and gasoline (kerosene) types. They differ in design and size. It is in these two categories that our review is divided.

Top 4. Bars 91452

Rating (2021): 4.0

Better heating, stable flame The special design of the ejector ensures good fast heating and a uniform flame flow.

• Characteristics

  Average price: 1800 rub.

• Country Russia
• Tank volume: 2 l
• Maximum operating temperature: not specified
• Ejector metal: not specified
• Repair kit: yes

The lamp heats up very quickly, produces a powerful, stable flame - you can safely work in windy weather. With any model, the nozzle becomes clogged. In this case, this is not a problem - the nozzle is located outside and can be easily unscrewed for cleaning. The metal of the burner is quite thick - you can count on a long service life.

The package includes a repair kit. For convenience, it is hidden in the handle. The device can operate on 92 and 95 gasoline. The scope of application is wide - it can be used for repair work, household purposes, soldering, heat treatment of parts. The disadvantage of the lamp is that it is difficult to adjust the flame power.

Advantages and disadvantages

• Wear-resistant burner
• The nozzle can be easily unscrewed for cleaning
• Even flame
• Convenient placement of the repair kit

• Complex regulation of flame pressure

See also:

• 10 best gas burners

Top 3. Zubr Professional – Samotlor

Rating (2021): 4.07

The best tool in terms of reliability and maintainability The design of the tool is superior to competitors due to the thoughtfulness of each element, high-quality assembly and the correct choice of materials.

• Characteristics

  Average price: 1500 rub.

• Country Russia
• Tank volume: 1/1.5/2 l
• Maximum operating temperature: 1100 degrees
• Ejector metal: cast iron
• Repair kit: yes

This model of blowtorch is produced by a popular manufacturer in the CIS, the quality of whose range has stood the test for years in difficult climatic conditions. Such a gasoline device, despite its simplicity of design, has a durable cast-iron ejector, which evenly maintains the desired temperature and cools slowly. The operating properties do not change at very low temperatures due to complete combustion of the fuel. At the same time, the flame, protected from the wind by a special casing, has a stable intensity. This is also facilitated by the increased diameter of the pump. The best tool in its category, as indicated in customer reviews, suffers from disadvantages common to many competing models - clogged nozzles, requiring cleaning with a needle, and loud sound.

Advantages and disadvantages

• There is a choice of tank volume
• Long-lasting heat-retaining ejector made of cast iron
• Wind protection cover included
• Guaranteed operation at low temperatures
• Easy to find in retail chains

• Nozzle clogged
• Loud humming

See also:

• 10 best soldering guns from AliExpress

The main elements of a blowtorch

If we consider the standard version, the device will consist of the following parts:

• Fuel tank. This is the main structural element; all other parts are supported on it. The product is completely sealed and does not allow gas to pass through. Made from durable metal. For refueling there is a neck that can be easily unscrewed and tightened.
• The handle is located on the side of the tank, its function is simple - to ensure convenient transportation and holding of the device during working operations. Thanks to this, it is easy to work with the product.
• Hand pump with valve. This element creates the necessary pressure inside the fuel tank. Some manufacturers combine it with the filler neck to save space. The operating principle is as follows: the pump is unscrewed from the housing, and the required amount of fuel is poured into the hole.
• Siphon tube. The main task of the component is to supply fuel to the evaporator and at the same time combine the devices into a single structure.
• Thanks to a special tap, the flame is regulated. It is often located to the side of the handle, so it is easy to find.
• The evaporator is a metal part made in the form of a ring. Inside this element, the fuel changes from liquid to gaseous state.
• The heating part (ejector) is designed to ignite the fuel mixture.
• An injector is needed to atomize fuel.

Some models of blowtorches have a small auxiliary container into which a little fuel is drained and then quickly ignited. Thanks to this action, the initial heating of the evaporator is carried out. To clean the nozzle, the kit includes a special wire.

Material of manufacture

The first thing you need to figure out is the material. It is recommended to buy only models that are made of steel. But there are also more reliable versions; cast iron or brass were used for their manufacture.

The handle is made of metal and plastic/wooden linings. It all depends on the convenience of the user. For the manufacture of the flame regulator, only fire-resistant plastic is used; no other material is suitable.

Top 2. SIBRTECH 91442

Rating (2021): 4.25

The best quality/price ratio The multifunctional device is capable of performing a large volume of work and is inexpensive.

• Characteristics

  Average price: 1100 rub.

• Country: Russia (manufactured in China)
• Tank volume: 1.5 l
• Maximum operating temperature: not specified
• Ejector metal: not specified
• Repair kit: no

High-quality, reliable blowtorch at a low cost. It can operate on any brand of gasoline, except leaded. Despite the fact that the tank capacity is 1.5 liters, it is better not to fill it completely - a maximum of 1.1 liters. Fuel is consumed sparingly; one refill is enough for an hour of work. The handle is steel, simple, but quite comfortable.

There is different information in the reviews. Among the advantages, users note the ease of adjusting the fuel supply; among the disadvantages, the injector quickly becomes clogged. It is advisable to clean it after each use.

Advantages and disadvantages

• Optimal equipment at a low cost
• Good compatibility with popular brands of gasoline
• Convenient metal handle with repair kit inside
• Easy fuel supply regulation

• Periodic nozzle clogging

See also:

• 10 best soldering stations

Top reliable blowtorches

Park QD15-1P 145106

Robust design and high power are the main advantages of this option. The device is suitable for performing various tasks, including melting metal products. The capacity of the cylinder is 1.5 liters. Gasoline is used as fuel. The device is completely universal and is suitable for professional use and home use. The adjustment is convenient, the valve does not heat up. The handle is welded to the body.

The average cost is 400 rubles.

Park QD15-1P 145106

Advantages:

• Low price;
• Good flame;
• Consumption;
• Convenience;
• Doesn't take up space.

Flaws:

• Not found.

Campingaz THP 3000 PZ

High-quality and durable equipment, which is made from durable materials. The manufacturer has equipped the product with convenient delivery. After a minute of use, the blowtorch can be turned over and rotated to the sides. The maximum heating temperature is 1800 degrees. Fuel consumption – 225 grams per hour. Continuous operation time – 1 hour 30 minutes. The weight of the structure is 340 grams.

Cost – 4,500 rubles.

Campingaz THP 3000 PZ

Advantages:

• Multi-position control;
• Working hours;
• Long service life;
• Efficiency;
• Reliability.

Flaws:

• Not detected.

DREMEL 2200 VERSAFLAME

A reliable device that is completely safe, yet the device is versatile and can be used for various purposes. Soldering or heat shrinking - it doesn’t matter, the equipment copes with various operations. In addition, the product supports welding capabilities. The tank capacity is 22 grams, despite this burning time is 90 minutes, which is a good indicator. There is the possibility of installing various attachments. Therefore, the device is multifunctional.

The average cost is 4,300 rubles.

DREMEL 2200 VERSAFLAME

Advantages:

• Precise flame;
• Minimum heating time;
• Reliability;
• Simple temperature selection;
• Flame level lock;
• Portability.

Flaws:

• Not detected.

Top 1. Sparta 91443

Rating (2021): 4.73

The fastest ignition Unlike a number of analogue lamps, the design has a closed fuel pre-supply chamber, which guarantees fast and at the same time safe ignition.

• Characteristics

  Average price: 1000 rub.

• Country: Germany (manufactured in China)
• Tank volume: 1.5 l
• Maximum operating temperature: 1100 degrees
• Ejector metal: steel
• Repair kit: no

The soldering tool attracts attention with its design features, the optimal volume for many types of work in a steel tank with a neck located on the side for convenience. With its help, liquids of different densities and pipes are easily and quickly heated; it is indispensable for waterproofing measures. The open flame appears quickly and has a wedge-shaped shape, which allows the lamp to be used in hard-to-reach, narrow places. In addition, its flow can be adjusted with a screw. Unleaded 92 or 95 gasoline is used as fuel. The device is characterized by economical fuel consumption - 1.2 l/h. Users in the reviews consider the disadvantages of the model to be difficult to open the valve and difficulties in finding a repair kit.

Advantages and disadvantages

• Closed fuel pre-feed chamber
• Accelerated ignition
• Side neck placement
• Suitable for use in hard to reach places
• Flame level is adjustable

• The valve is difficult to open
• Problems in finding a repair kit

See also:

• 10 Best Pipe Soldering Irons

to the beginning of the rating

The best gasoline blowtorches

Kerosene lamps can run on gasoline or aircraft fuel. They have a metal tank where fuel is supplied. After tightening the neck, the pump injects pressure from the side. When everything is ready, the gasoline flow is opened and the flame is ignited. You can control the pressure using the built-in pressure gauge or the sound of combustion. These are more reliable devices, suitable for large-scale work, but they take up more space and are heavier.

SIBRTECH 91442

Rating: 4.9

In this category, the first place is taken by a blowtorch from the domestic brand Sibrtech. The gasoline installation is capable of heating objects up to 1450 degrees and consumes 900 g of fuel per hour. The soldering torch is placed on a tank holding 1.5 liters. This supply is enough for 90 minutes of work. A tray for pre-ignition is provided under the nozzle. The user opens the tap and gasoline begins to drip into it, which needs to be ignited with a match. After this, the feed is intensified and a powerful torch is obtained. Gasoline is filled through a single neck with a pump, so you first need to remove the rod and cylinder. At the back there is a knob with reliefs, which is convenient to turn even with work gloves.

This model was included in the review of the best as the most “indestructible”. It is used on construction sites and in workshops, where it can withstand falls, shocks, low-quality gasoline and frost with dignity. If you need a blowtorch with a high resource, then pay attention to this product.

Advantages

• warms well;
• not fussy to use;
• tray for safe pre-ignition;
• volumetric handle.

Flaws

• black paint on the burner swells from heat;
• a little air comes out from the closed supply valve;
• The filler neck is combined with the place where the pump is screwed in.

BARS 91452

Rating: 4.8

The second domestic brand “BARS” produces blowtorches with a 2-liter tank, which is enough for almost 2 hours of continuous operation. The model has a durable steel body and is powder coated to prevent corrosion. The lamp weighs 1.7 kg without fuel. Refilling, like the previous burner, is carried out through the pump connection point. Its neck has a steel butterfly stop to make it easier to unscrew the lid. The handle is closed, so water does not collect in it. Owners in the reviews like the plastic plug, which turns the handle into a small compartment for storing small items.

The blowtorch is noted by experts as one of the best due to the presence of a preheating system. Here, gasoline vapors pass through a hot “jacket” before entering the nozzle pipe. This increases their temperature and promotes even greater pressure and evaporation. As a result, flame combustion stability increases, which is confirmed by customers in reviews. If you need an even torch or have to work in the wind in cold conditions, then this lamp will be the best option.

Advantages

• relatively small dimensions 270x160x290 mm;
• weighs 1.7 kg;
• the volumetric handle makes it easier to hold;
• high quality painted body.

Flaws

• sloppy welds;
• refueling through the pump mounting location.

SPARTA 91443

Rating: 4.7

The category of gasoline lamps is completed by products from SPARTA. The soldering unit has a 1.5 liter tank. Fuel consumption is 900 g/h. The burner weighs 2 kg. The closed handle prevents water from collecting in it, so it stays free of corrosion longer. The pump neck is shifted to the side wall (competitors have it on the top), which makes the nozzle more compact for inserting into narrow places. The fire temperature can increase to 1100 degrees. Judging by the reviews, the narrowed shape of the nozzle makes the torch sharper, so heating can be carried out more accurately. Buyers also praise the product for its quick ignition and heating. A soldering torch is actively used for waterproofing roofs and heating liquids.

In our opinion, this gasoline soldering lamp is the best in terms of safety. To ignite, competitors use an open tray into which gasoline drips and needs to be set on fire with a match. Here, the fuel pre-supply chamber is closed and has only a small hole for a match to enter. This protects the operator from splashes and increases operating safety.

Advantages

• closed handle design;
• there is a torch level regulator;
• the embossed swivel wheel is easier to turn while wearing work gloves;
• The narrowed shape of the nozzle lengthens the torch.

Flaws

• no preheating;
• tight valve;
• some have it assembled crookedly;
• It’s difficult to buy a repair kit for the pump

Top 5. Express 8700

Rating (2021): 4.15

Maximum heating with minimum gas consumption The development of a universal type allows for both soft and hard soldering due to the high maximum temperature.

• Characteristics

  Average price: 1800 rub.

• Country: France
• Tank volume: 19 ml
• Maximum operating temperature: 2010 degrees
• Nozzle metal: steel
• Repair kit: no

A very practical blowtorch model is designed for high-quality operation during construction and other work thanks to its powerful technical potential. It is excellent for soldering copper and tin in different diameters. It is acceptable to use copper-phosphorus, silver or soft solder as solder. The length of the acute flame reaches 17 cm, it is continuous and uniform. The reinforced metal tip can withstand a working pressure of 1.5 bar. In this case, the consumption of propane-butane is minimal compared to competing models, it is equal to 110 g/h. The wear-resistant steel tank has an optimal volume, which allows continuous operation for 1.15 - 1.30 hours. Disadvantages of the model - power is inferior to analogues (1.6 kW), increased body dimensions.

Advantages and disadvantages

• High temperature conditions are achieved
• Suitable for soft and hard solder
• Adjustable flame intensity
• Minimum gas consumption
• Compatible with several brands of puncture cylinders (0.19 L)

• Power is less than that of the leaders in the rating
• The large body is not suitable for hard-to-reach places

See also:

• 5 best spotters

Top 4. Campingaz Soudogaz X2000

Rating (2021): 4.2

High-quality piezo ignition The device is excellent for small heating jobs; instant ignition speeds up the work process.

• Characteristics

  Average price: 1600 rub.

• Country: France (manufactured in China)
• Tank volume: 19 ml
• Maximum operating temperature: 1750 degrees
• Nozzle metal: brass
• Repair kit: no

This type of blowtorch is most often used in the food industry and at home to perform minor heating work. It is equipped with a reliable brass nozzle that produces a wedge-shaped flame. Its intensity is smoothly adjusted using a special valve built into the body. The nozzle is of the standard X 1550 type. The Campingaz C 206 gas cartridge is placed in a metal shell for safety. Propane-butane consumption is 120 g/h. One working cycle reaches about 2 hours. The operation of the device comes from a pierced gas cylinder, which is not included in the package. Another disadvantage of the model is the fragility of the plastic latch for securing the container.

Advantages and disadvantages

• Instant piezo ignition
• Long lasting brass nozzle
• Smooth flame adjustment
• Metal protected cartridge
• Economical gas consumption

• Unreliable plastic cylinder mount
• Lack of gas tank included

See also:

• 10 best welding machine companies

Rating of the best blowtorches

Top 3. Topex 44E141

Rating (2021): 4.3

17 reviews from resources were taken into account: VseInstrumenty, CMP234.ru, 220 Volt

Bright design in an ergonomic format It is difficult to pass by such a device; its yellow-red color and convenient body can be seen far away, which increases the safety of the work being carried out.

• Characteristics

  Average price: 1800 rub.

• Country: Poland
• Tank volume: 38 ml
• Maximum operating temperature: 1350 degrees
• Nozzle metal: brass
• Repair kit: no

This device is effective for heating objects, soldering and welding at home with mandatory ventilation and in the open air. The metal container is covered with a thick layer of anti-corrosion enamel, while the upper part (start button, control valve, handle) is made of plastic. The holder is comfortable to grip and has a long cycle of operation, and it corresponds to the volume of the butane tank connected by piercing and is 190 grams. The fuel in the lamp is consumed on average in the amount of 180 g/h, however, by simply rotating the valve wheel, the flame and pressure can be adjusted. Disadvantages - there is no gas cylinder included in the set, poor-quality piezo ignition at low temperatures.

Advantages and disadvantages

• Functional design
• Anti-corrosion protection of metal containers
• Easy flame level adjustment
• Convenient top location of the start button

• Piezo ignition does not always work quickly at low temperatures
• A punctureable gas cylinder is not included in the set.

See also:

• 20 best welding machines from AliExpress

Top 2. DREMEL Versaflame 2200-4

Rating (2021): 4.36

40 reviews from resources were taken into account: IRecommend, OZON, VseInstrumenty, 220 Volt

Better functionality The combination type device can be used with different types of attachments that are included in the kit and increase its functionality.

• Characteristics

  Average price: 3000 rub.

• Country: Taiwan
• Tank volume: 42 ml
• Maximum operating temperature: 1200 degrees
• Nozzle metal: not specified
• Repair kit: no

One of the best options for multifunctional stationary blowtorches. You can use an open flame with a catalyst and a soldering attachment. Powered by liquefied butane. For convenience, the model is equipped with piezo ignition. With a reservoir capacity of 22 grams, the device operates in intensive mode for about 75 minutes.

There are many useful options - child lock, removable leg for stationary operation, flame level lock, temperature mode selection. The kit includes several attachments - for soldering and torch extension. In terms of functionality, the lamp resembles a professional model. Users note the ease of recharging, very short heating time, and ease of use. The only downside they name is the fairly high cost.

Advantages and disadvantages

• Functional design
• Quick connection of the nozzle
• Child safety lock
• Expanded set of nozzles

• High price

See also:

• 10 best soldering guns

The best gas blowtorches

Gas blowtorches have cartridges that are attached to a gearbox with a nozzle. From the cans, liquefied gas (propane-butane) is supplied under pressure into the nozzle and ignited. These are compact models that are convenient to manipulate in limited space. If necessary, the lamp can be disassembled, which increases the convenience of its transportation and safety. Gas soldering irons are also practical because they are immediately ready for use after connecting the cylinder.

DREMEL VERSAFLAME 2200-4

Rating: 4.9

In first place is a product from the American brand Dremel. The gas lamp is produced with its own non-removable cylinder, which has gas filling from below through a fitting. The end is covered with a plastic stand, which ensures reliable placement of the device on the table. The lamp has a piezo ignition with a button that does not require holding. The model weighs only 227 g and is very convenient for manipulation. The curved shape of the nozzle provides flame directions with a slight upward slope. The soldering station operates on butane and the torch temperature reaches 1200 degrees. The flame length can be adjusted with a wheel on the side.

This blowtorch gas lamp is the best in its configuration. It comes with a regular nozzle, a nozzle for extending the flame, a nozzle with a blue tip, a box for storing small parts and flux, and a suitcase for transportation. There is also an insert with a catalyst that improves fuel combustion. If you need a gas soldering iron with wide capabilities, then this is the best option.

Advantages

• no need to keep the button pressed;
• piezo ignition;
• stable base;
• tube with catalyst.

Flaws

• sold unfilled;
• does not work in cold weather;
• does not turn on the first time;
• When refueling it sprays a little gas.

KEMPER 1060 pz

Rating: 4.8

In second place is a soldering device from the Italian brand Kemper. The lamp weighs 570 g and consists of the burner itself and the attached cylinder. The convenience is that the lamp does not need to be refilled - when the gas runs out, you need to disconnect the empty cylinder and connect a new one. The burner burns 110 g per hour of operation, so a 400 g container will last for almost 4 hours. The reservoir is connected through a thread and does not fall off. The cylinder has its own valve, which increases the safety of operation and transportation. The burner and cartridge can be separated for storage. Ignition of the flame in the lamp using a piezoelectric element simplifies the start of work. The wheel on the handle allows you to adjust the length of the torch. User reviews praise the soldering torch for its ergonomic grip.

This model is the best in terms of heating temperature, which reaches 1900º C. This allows you to melt not only copper and brass, but also steel. Another distinctive feature of the lamp is the permitted operating temperature of -17 degrees, at which other soldering units simply freeze.

Advantages

• piezo flame ignition;
• adjustable torch length;
• You can store lamp parts separately;
• no need to refill the bottle.

Flaws

• without case;
• high price.