Warm up a cold pool with one of the best solar pool heaters. We reviewed top models that can help keep your pool warmer.

Researchers in Malaysia designed a photovoltaic-thermal system that can be used in solar drying, space heating, rooftop systems, and off-grid thermal applications. It relies on a double-pass ...

Small space heaters are typically less expensive than turning up the thermostat in the house, and they allow you to target specific rooms instead of heating your entire house.