༈ མི་སྲུན་སྐྱེ་བོ་ཞི་བས་མིན། །དེ་དང་འཚམ་པའི་རྩུབ་པས་བསྟེན། །
Without the air passing through to be heated, there is nothing to absorb the heat in the heat exchanger, and it gets hotter causing it to glow.
Light, Action, Illumination: These three words can be used to describe the general topics in the given texts