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Heat (lemmy.ca)
submitted 6 months ago by to c/science_memes@mander.xyz
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[–] 51 points 6 months ago (7 children)

I'm not well-versed on this topic, but doesn't the AC frequency cause alternating fields in the heating element, making it vibrate slightly? If that's correct, then you're losing an incredibly stupidly tiny amount of energy as sound too.

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  • [–] 17 points 6 months ago (5 children)

    And that satisfying glow is losses as light, which will do some heating, but not as efficiently

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  • [–] 13 points 6 months ago (1 child)

    There's a whole class of electric heater that do this intentionally. Radiant heaters are awesome for outdoor patios and other spaces like uninsulated garages where you care more about heating surfaces than the air itself.

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  • [–] 8 points 6 months ago

    I don’t know why but as much as I’ve read about radiant heaters to try understanding them your random comment I read here is what it took for things to finally click into place for me. I really love those ah ha moments. Just wanted to say thank you.

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  • [–] 6 points 6 months ago (2 children)

    Unless it is visible to the window at which point the light escapes and doesn’t heat your house 100% efficiently

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  • [–] 2 points 6 months ago (1 child)

    Most of the heating energy would actually be IR, which many types of window glass will be designed to reflect. It probably depends on what kind of coatings are used. Basically all car windows block IR to help keep the inside of the car cool in the sun.

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  • [–] 3 points 6 months ago

    It’s a silly thing, but if it glows orange, and if any of that orange light escapes or is visible from the window, it is not 100% efficient. But this is just pedantic in reality, even cheap heaters will do a good job of converting electricity into heat.

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