Fight me

Refrigeration cycle scoffs at your mere 100% efficiency

Nah this thing puts out light and probably vibrates as well, so not even 100%.
- Well ultimately it all becomes heat. Maybe a tiny amount escapes a window or something. So we could say 99%.
  But heat pumps still reign supreme, at least until it gets super cold.
- Light is just heat energy
Refrigeration just moves heat, it does not create it.
- Why create heat when you can just steal it from somewhere else, though
- It would end up creating some due to inefficiencies, which would contribute to the heat at the end.
- In terms of "use electricity to make heat" it still trounces resistive heating. This whole thread is arguing about the definition of efficiency.

If you want to make heat, start up a gaming PC. At least the energy will go to doing something before it gets turned to heat.

I legitimately had to buy a heater after I stopped regularly using my desktop because it was what was keeping my room warm.
- At that point you might as well run Folding@home on your PC just to act as a heater. It's literally a win-win for you and for society.
- running FFXI and later WoW on my first rig (many moons ago) allowed me to keep my room nice and balmy all winter, to the point where I'd leave a window open for much of the day during snow-supporting temps and it'd still be toasty
I don't have a source handy, but someone attempted to heat their apartment with computers and ended up spending something like >$1000 in utilities that month.
- Resistive heat is expensive - that's why heat pumps are so good.
  In practice, they would have gotten identical results with any electric resistive heater. Fans, oil filled, ceramic, etc. all largely doesn't matter as it is Wh of electricity to Wh of heat.
- They must have overshot, then. Computers are 100% efficient space heaters that produce math as a byproduct.

Everyone here is talking about heat pumps for being more efficient. pfft

Got one of these bad boys for my patio. Highly recommended if you wait for a sale.
- not gonna lie I yearn for a future where its not a joke but I was born too early
- I don't think my it will fit on my porch.
- you really should not talk about your MIL like this

Boo, get heat pump you loser

Most of the time, we consider heat output to be inefficient. It only works here because heat happens to be its purpose.

You could say it's 0% efficient.

I dunno, I’m seeing some light.
- Light is absorbed by materials and ultimately becomes heat.
- Four or five?
- and what happens to the energy of said photons once they interact with your retina?

Pfft. Making things hotter is easy. The fact that we can regularly make things colder and hold them at that colder temperature is what's actually impressive in thermodynamics

Pfft the absolute human hubris to hold up these entropic sleight-of-hand tricks as impressive. Nature abhors a refrigerator. Heaters are the ultimate power in the universe.
- Our entire existence is a temporary rebellion against entropy. In light of that, hubris seems inevitable. I reckon a little bit of it is useful for us

https://en.wikipedia.org/wiki/Heat_pump

People say efficient without saying efficient at doing what with what.

Make those heating coils out of superconductors and it'll be even more efficient.

Pfftt. Splitting wood is peak heat thermodynamics. And I can attest it keeps you warm down to -40F.

That is how the power supply of my Laptop look like, playing Cyberpunk 2077 on my laptop.

- Winter is gaming season.

My cat agrees.

So does our Colombian red tail boa! :D
EDIT: That's just a little heat coil with a fan though in the cold months. Be very careful and research heavily before blasting IR light at reptiles!

Turn that entropy up to 11, boi!

(As a nerd) I came here for the nerdy comments.

You're objectively wrong here.

So hot.