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This article explores the thermal impact of magnetic fields on the construction of electrical devices. It emphasizes the need to consider the arrangement of magnetic field-generating elements during device construction. The authors utilize computer simulations, specifically using the Ansys software environment and the finite element method, to predict and analyze potential problems such as excessive heating and fire hazards caused by the magnetic field. The article also discusses the testing and analysis of a choke in a DC-to-DC power converter, highlighting the importance of separating the converter from the power source and using an air gap in the choke to prevent saturation of the magnetic circuit. The authors conclude that further research is needed to address the risk of high temperatures affecting the device's structural elements. The Ansys software environment is praised for its usefulness in designing devices and addressing fire and explosion hazards. [Extracted from the article]