Like the sun, AKO heat waves do not heat air masses, but solid bodies in the room on which the heat radiation hits. As a result, the heat is directly where it is needed. Similar to the heat radiation of the sun, the heat wave heaters create a pleasant feeling of warmth without overheating the room air and without causing air turbulence. Due to the high proportion of radiant heat, these devices are particularly economical, as the room temperature can be lowered somewhat.