this post was submitted on 30 Apr 2026
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Isn't some energy still dissipated as light instead of heat?
Which travels to a location, hits it and is eventually converted to heat.
So not a heater...but the universe.
Typically a heater is in a room, so any light doesn't need to go further than the nearby walls
When light is absorbed by surface, the material temperature increases and remits light at a longer wave, ussually in the IR spectrum. So its safe to say all light is heat enegry.