Thank you for the video! As always, very nice 😁 Not that there's lots of room but some people will place rain barrel(s) full of water, painted black, for thermal mass etc in their greenhouse. I also wonder about a buried trashcan vermicompost with pipe coming out of the top and screen over the holes. How much these make a difference in temp.
Was considering a black 80 liter barrel but didn't manage to get one in time, maybe next year. By the looks of it, as stuff is low, it would probably better to just use bottles lying on the soil and some row cover to keep the warmth down low and close to the plants. I'm also thinking about small simple scrap wood structure like a small raised bed "lid" with plastic for inside the micro greenhouse. Lots of experiments to be made!
