Knowledge
About infrared
The science, the wavelengths and the engineering
Infrared heat is one of the oldest forces in nature, it is how the sun warms the earth across 150 million kilometres of empty space. Understanding how it works is the difference between choosing a heater that feels right and one that truly performs. This section covers the science, the technology and the engineering choices behind every Opranic product.
Foundation
What is infrared heat?
How electromagnetic radiation warms bodies and surfaces directly, without heating the air in between. This is the physics behind the sunshine principle, the same mechanism that lets you feel warm on a cold winter day the moment the sun touches your skin.
Start here if you want to understand the fundamentals of radiant heat, why it works outdoors where convection fails, and how it differs from every other heating method you have encountered.
Deep dive
How infrared heat works
Shortwave, mediumwave and longwave infrared behave completely differently when they meet human skin. The wavelength determines whether the radiation is absorbed or reflected, and it decides how comfortable the heat actually feels.
This is a technical deep dive into why 2.4 micrometres is the optimal wavelength for outdoor comfort heating, what the research shows, and how Wien’s law connects a heating element’s surface temperature to the radiation it emits.
Opranic technology
Why Opranic, our technology
The IR-X Carbon Black element is the result of more than 20 years of engineering. In practical terms it delivers up to 96 percent energy conversion, a 12 000 hour service life and a carbon element manufactured in Japan to a tolerance nobody else in the category matches.
Learn why the element alone is not enough, why the reflector geometry, housing and electronics all matter, and why Opranic treats the heater as a complete radiant system rather than a collection of parts.
The science on this page is grounded in peer-reviewed research and an independent academic study commissioned by Vattenfall AB.