Is It Efficient to Produce Heat?

The way we produce heat is really kind of bad, you know, likerejusta, it is almost as inefficient. It's the same method that we use through all electronics and anything that runs electricity through it. So i really, really want to do some serious math on it after i get this thing plugged in. I was actually talking about this on a plane back from pickoin, 20 22, and randomly, the guy sitting in front of me apparently had been listening to our entire conversation. He just eavesdropped the whole time.