this post was submitted on 13 Nov 2023
921 points (98.5% liked)
People Twitter
5213 readers
2212 users here now
People tweeting stuff. We allow tweets from anyone.
RULES:
- Mark NSFW content.
- No doxxing people.
- Must be a tweet or similar
- No bullying or international politcs
- Be excellent to each other.
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
I don't think you understand their point. Typically, heat is the only undesirable byproduct of electrical devices, so the less heat it produces, the more "efficient" it is. However, if what you want is heat, then all devices are 100% "efficient." (Minus any EM or kinetic energy that leaves the area as anything but heat)
A 100W incandescent light bulb and a 10W LED+90W heater are exactly the same in terms of how much heat they produce for how much energy they use, with the bonus that when you don't want that heat, you can turn off the 90W heater and have the same light for 10% of the energy expenditure
You're right, but that wasn't his point, he's talking about all the electrical devices being 100 percent efficient and heating as separate.