Non Pressurised Vacuum Tube Solar System is capable of working in a range of up to 0.8 Kgs/ cm². The Vacuum Tube Solar System offers increased heating efficiency due to triple coated glass tube. The Vacuum Tube Solar System has the storage tank placed at a certain height, relative to the top of the collector to prevent the reverse circulation during off-sun shine hours. Non Pressurised Vacuum Tube Solar System is easy to install and needs less maintenance.
