The evacuated tube collector quickly absorbs heat consistently during daytime and also retains it even at considerable low temperatures. These systems have a greater surface area exposed to the sun which enables them to transfer more heat. Simplicity in structure and design makes them favorable for smaller roofs. The evacuated tube collectors require a very low maintenance as they are less vulnerable to erosion and hence are much more durable. 

• The ETC has a greater absorption area per day, up to 94% auto sun tracking system.
• The evacuated tube collector performs well even during cloudy days and winters.
• Hard water/ scaling do not corrode the ETC tubes.
• The ETC is maintenance free and easy to clean.