An automated solar air heater for our indoor food forest

An automated solar air heater for our indoor food forest nickisan Wed, 28.05.2025 - 09:49

Some time ago, I wrote about our solar air heater, which we attached to our house—and which has actually been working very well, aside from the air intake getting blocked. Solar air heaters are mostly passive systems, though sometimes they are active and use a fan to pull in air. My first one was a passive system; the second is an active one.