When I was a child in Bulgaria I spoke to people often.

I had a conversation in front of the first building that I lived in, Mlados.

Many heaters emit hot air, and breathing that in can lower intellect, so why not make a radiator that doesn't do that?

No hot air or steam, if it can heat the room through conduction. Bulgaria actually made this later on, or maybe it existed already and someone else thought it up before me, but I had one later on at my apartment, Mlados, electric.

It uses the same energy as the other electric heaters, but you can work more intelligently and make up for the slightly bigger extra cost, because you're breathing in clean, natural air.