I’m staying in an apartment temporarily and I have absolutely no idea how it is heated. It’s a two-bedroom apartment. There is no thermostat. There are no vents. There is one radiator in the apartment’s living room, at the front and down the hall from the bedrooms, and one radiator in the bathroom.

I have felt every wall in my bedroom. All of them are cool. The floor is also a normal temperature.

And yet, despite it being at or below freezing most nights in the past month, I can be in my bedroom without a shirt on and be comfortable. It might be nice to be a little warmer, but I don’t feel cold or anything.

I am mystified. How is it being heated?