Lived in a stone house when I was younger. It was amazing at keeping us cool or warm for long periods when the temperature shifted.

In current apartment heating doesn't work properly until days after its gotten cold, and it's instantly too warm when it gets warm.

AC is very uncommon in Scandinavia, and we have 85-95% humidity in my area year around.

An alternative is heating panels that emit long IR. These allow you to maintain a lower air temperature and still be comfortable when they're shining on you.

How even is that warming you get from them? I find it very uncomfortable to sit outside at a restaurant where they have heaters. One side gets roasted and the other is cold.

There's such variety in comfort. Being too warm on one side and too cold on another is one of my favorite ways to be.

I too love campfires.

The same way the sun warms you when you walk out of the shade. Air temperature is the same but you feel warmer. Long IR is completely different than conventional heating elements that can only heat air.

Lathe and plaster works as well.