Think of solar greenhouse heaters as a way to supplement existing heating systems. They're out there, but some assembly may ...

Essentially, it allows the water heater to get much hotter during times when solar energy is available ... of storing excess renewable energy as well, although they might require more resources ...

Then, in June, we installed aluminized solar sheathing on the roof ... we put in a whole-house cooling fan and whole-house heat-recirculating system (as well as two skylights, one seen in the ...