A group of researchers from MIT World Peace University in India has conducted an extensive review of all direct expansion solar heat pump (DX-SHP) technology for domestic heating applications like ...
Think of solar greenhouse heaters as a way to supplement existing heating systems. They're out there, but some assembly may be required.
California-based Apparent Inc. has unveiled a new water heater that can reportedly offset 100% of a home’s water heating cost. The system uses low-voltage DC electricity generated by conventional ...