This video introduces a new solar hot water system that works differently from traditional systems. The system uses a lightweight panel and a refrigerant to heat water, even at night, and can be expanded to heat homes, pools, or large buildings. The presenter highlights the system's efficiency and cost savings.
466251 10 лет назад 5:02The video compares two solar air heaters: a steel downspout heater and a steel can heater. The creator tests the heaters side-by-side on a partly cloudy day, measuring the temperature of each heater using a thermometer. The creator notes that the steel downspout heater is significantly hotter than the steel can heater.
70563 7 лет назад 3:20This video compares two solar air heaters: one made with steel cans and the other with a screen absorber. The creator tests the temperature of each heater and provides a side-by-side comparison. The video includes close-up shots of the heaters and temperature readings.
609509 10 лет назад 3:15