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, and lets it drop to lower values before running the heater on utility electricity during ...

There are other water heaters that can be even more energy efficient, though, like solar water heaters ... You can also sift through online incentive databases like the Database of State ...

Spanish heating specialist Elnur Gabarron has developed a new solar-powered residential heating concept based on the use of storage heaters. “Our storage heaters are specially designed to work ...