Max. temperature
The maximum temperature of the flame produced by the heater. Note that this indicator may be lower than the theoretical fuel combustion temperature — this is due to the physical features of the process.
In general, the more heat-resistant the material you plan to work with, the higher the flame temperature should be. Also, the required temperature may vary for different types of work: for example, oxyfuel cutting does not require as much heat as welding. Detailed recommendations regarding the optimal temperature for different tasks and materials can be found in special sources.
Max. fuel consumption
The maximum fuel consumption during the operation of the device. Usually, it is achieved at maximum power. Knowing this parameter, it is possible to estimate how long the device can be guaranteed to operate on a certain amount of fuel (the actual operating time may be even longer).
Cutting / soldering torch length
Total length of torch or torch (see the relevant paragraph).
Such devices can have different lengths, and each option has its own characteristics. So, short burners and cutters provide better accuracy when working, the movement of such a tool is easier to control; in addition, they are convenient in storage and transportation, because they take up little space. The long length, in turn, provides additional safety: the heating point is at a great distance from the user, thereby reducing the risk that sparks or splashes of molten metal will reach the person. The shortest modern models have a length of about 150 mm, in the longest this size can exceed 1.2 m.
Tank volume
The volume of its own fuel tank provided in the device (if such a tank is available in the design, many models operate from external cylinders).
A large tank allows you to work longer without refueling, all other things being equal; it is especially important for powerful high consumption instruments. On the other hand, with a small tank capacity, the weight of the tool also turns out to be relatively small, which has a positive effect on convenience and accuracy. Thus, manufacturers select the volume of the tank depending on how large and powerful the device is and what is more important for it — a large supply of fuel or low weight. So, in most blowtorches (see "Type") the volume of the tank is 700 mL or more (up to 6 liters), and in some of the smallest burners this volume can be less than 50 mL.
Weight
The total weight of the tool. For models equipped with their own fuel tank, the “dry” weight is indicated, excluding fuel; similarly, the weight of the fuel bottle is not taken into account in devices that look like a bottle cap.
