Compact low-pressure solar water heater (open circuit)

A widespread unpressurized free-flow (thermosiphon) solar water heater, with a simple design and easy installation and operation, economical and with high thermal performance, working in various climatic conditions. It consists of a set of double evacuated glass tubes and a food-grade stainless steel tank insulated with a layer of high-quality polyurethane and covered with a protective layer. Suitable for providing hot water for domestic and commercial sanitary uses. It relies on evacuated tube collector technology.