My roll-up solar air heater is putting out about 2200 watts of power, in the form of heated air, in the mid-day October sunshine, 37 degrees north latitude.
But absent some sort of magic, that’s not enough. Not on its own, anyway. To keep my composter working through the winter, I’d have to build an insulated box for it, and pipe the hot air into that box.
I’m not even sure that would work. And even if it did work, I’m not sure it’s worth the effort.
Continue reading Post #1866: Winter composting, take 2, using an indirect solar air heater.