Solarpunk technology

Is that Valve’s latest Steam console?

I wonder how effective this would be at keeping the inside of a parked car or boat above the dew point.

I suspect the added cost/environmental cost of adding a slightly more complicated setup than panel <-> fixed resistor, such as an mppt would be a worthy tradeoff.

I understand the point of the blog is to reduce the inputs to simplify, especially in eschewing batteries, but I suspect the loss in efficiency of not tracking the max power point would be significant.

I do like the concept though, in terms of shifting heat from daytime to later in the day, and localizing it into a box, rather than heating your whole house. It feels like the kind of thing you would put in your bedroom to help keep it warm into the evening.

Sun? In the winter? Wish I had that too

The principle is similar to the Kotatsu, Korsi, or Brasero then, makes sense. I could see the way of improvements specific to the household's preference.