FAQ’s according micro flame soldering units:

Oxy-hydrogen is produced! Are the units dangerous?
The units are manufactured according to safety regulations given by the German norm DIN 32 508, which was last revised in 2000. This norm precisely sets the necessary safety arrangements and measures for the units. Among these is the limitation of the gas production to 500 l/h. Unlike bottled gas, where the gas is stored in large amounts under high pressure and/or dissolved in solvent, this type of unit has no gas storage. Hence the amount of gas in the unit is very small and so is the potential danger. The units produce gas only when necessary. As soon as the valve at the welding torch is closed, the gas production stops.
Does the electolyte have to be exchanged regularly?
This depends on the design of the unit! Of all soldering units with own gas production according to DIN 32 508, which are known and widely used in Germany, the MIG-O-MAT soldering units have the highest electrolyte lifespan. If an exchange is necessary at all, it would only be after many years.
How can liquid get into the gas tubes?
There is more than one possibility/reason:

1. reactor overrun

If the reactor, meaning the actual gas cell, is refilled with too much distilled water and overruns, the very aggressive electrolyte flows into the gas tubes. This severely damages the unit! Such a unit has to be repaired as soon as possible. The probability of the reactor overrunning depends on its size, usually these problems do not occur with those units having larger reactors.

2. condensation in interior tubes

As the reactor produces gas the unit will warm up. Thus the gas has a higher temperature than its environment. When it cools down condensation occurs. The liquid is slightly aggressive caused by the traces of electrolyte which the gas takes from the reactor. Even though manufacturers apply several methods to dry the gas condensation can not be completely avoided. The produced gas is usually piped through alcoholic solutions. Leaving these enrichment tanks the condensate mostly consists of this fluid.

MIG-O-MAT units from Lötstar 140 upwards almost never have condensation in the unit’s interior.

3. condensation in the tube between unit and welding torch

If condensation occurs in the tube between the units and the welding torch is is often simply caused by different temperatures which the floor and the working level in a room might have.

Therefore the tube should be laid as short and level as possible. Long tubes should be laid slowly inclining and we suggest the use of a condensate trap and an additional flame arrester.
What kind of temperature is reached by the MIG-O-MAT microflame soldering and welding units?
The flame reaches 3000°C. This temperature is able to melt almost every metal. The temperature can be adjusted to the task at hand by using different evaporating liquid. Thus the micro flame is the ultimate tool for welding, brazing, soldering, melting, annealing, etc..