All Tech Services

An ETC (Evacuated Tube Collector) solar water heater uses a series of vacuum-sealed glass tubes to heat water with solar energy. Each tube has an outer layer coated with an absorbent material that captures sunlight, and the vacuum between the glass layers provides excellent insulation to prevent heat loss, making the system efficient even in colder or cloudy conditions. Heated water is then stored in an insulated tank for later use.