Here we have collected the most frequently asked questions for our specialists about inductive-conductive electric boilers. Please read the list, perhaps there is already an answer to your question. If not, please use any feedback form on the site, and we will be happy to answer you.
The cost of an induction boiler depends not only on power, but also (and mostly) on the components of complete plant. In most cases, the equipment is customized - in accordance with the terms of reference received from the customer. To not to mislead the buyer, we try not to indicate the preliminary cost of the equipment. The final cost is formed after the calculations for the task (which are free for the customer).
The uniqueness lies, firstly, in the fact that our boilers operate on industrial frequency electricity (50/60 Hz) and they do not need current converters. And secondly, only a special design is able to provide high performance (power factor 0.98 and efficiency 98%). It is the features of such a design, and not the principle of induction heating itself, that is protected by patents of the Russian Federation. You can learn more about how an induction heater works in the article (in Russian) "Principles of operation of electric boilers in circuits ..."
Power factor (cosφ) is a characteristic of any electrical product. Since in the induction boiler the heat exchanger is heated in a magnetic field, some part of the magnetic field is scattered, and the other part is used for heating. A power factor of 0.98 indicates that 98% of the variable magnetic field is involved in the heating of the heat exchanger and only 2% is lost. This is an extremely high indicator of system performance.
The fundamental difference is that our boilers use a standard power grid with an industrial current frequency of 50/60 Hz. Although induction heaters using high-frequency currents (HFCs), although they generally use the same operating principle, they are designed to be heated to much higher temperatures (the melting point of metals) and cannot be used without frequency current converters. They have completely different applications.
The magnetic field created by the coils of induction boiler exists in a very limited space, and to register it with special devices, you need to measure it directly at the product’s body itself. At a distance of several centimeters, the magnetic field will be approximately the same as that of a refrigerator. The boiler is not a source of any harmful radiation and does not require additional shielding, which is confirmed by the relevant safety certificates.
Full analogues do not exist, which is confirmed by the fact that the design of "Termanik" is patented. There are some boilers of this type on the market, but with a different design of the secondary winding, i.e. heat exchanger. Other frameworks of heat exchangers that are used by other manufacturers may be less resistant to scale formation, local overheating and unequal magnetic field distribution. Such designs are less reliable, more difficult to repair, more material-intensive, and therefore more expensive for the buyer. For more information on comparing various types of induction boilers, see the article: “Induction heater. Game of Constructions ”(in Russian).