

Honestly, it’s not a great take from low-tech magazine.
This does not replace what solar panels do, which is to be an almost entirely passive way to collect/generate clean energy. It requires a fuel source, produces dirty emissions, requires actively monitoring while in use, and generates very little energy relative to what it is exposed to.
It’s potentially good for reusing waste heat as a small amount of electricity but it’s very little compared to other methods of reclamation like a hot water heater or an actual steam engine.

I think what the other responses are not pointing out is that frame of thinking is blame shifting the ecological issues onto the people themselves rather than those in power making the decisions despite valid alternatives.
Blaming the people en masse leads to thinking that one can decrease their environmental footprint to the point where they will put themselves in danger for minimal societal benefit. Refrigeration and A/C when it comes to residential usage is a necessity.
The changes need to be made in a grander scheme in order to have an actual effect that is in the best interest of everyone.