The cure for a bad day is sometimes as simple as a piping hot shower. Tired of lukewarm showers? This ultra-efficient water heater quickly delivers up to 50% more hot water first appeared on The Cool ...

Whether you want to float an airship, fuel a truck, or heat ... the solar energy that reaches the reactor. This light not only heats the water, but also reaches a photovoltaic panel which provides ...

Plus, an IP65-rated junction box provides complete protection against environmental particles and low-pressure water ... panels or solar heat absorption panels. If you use PV panels, an electric ...