Yep! Rigs aren't 100% solar powered but get a good chunk from PV panels. The rigs are in a grow tent to concentrate the heat (1). The heat produced from the rigs is siphoned into a 2d grow tent (2) where I've stacked some wood (3) for my wood stove (the temp is over 100F and humidity under 10%). Finally, the heat is pumped to the return duct (4).