Agni Solaar offers Evacuated Tube Collector (ETC) model, which is specially designed for areas were flat plate collector are out of place such as wintry climates, the ETC model provides supplementary insulation around their absorbers to maintain heat absorption.
Evacuated Tube Collector is more suitable for all atmospheres. ETC model is a better solution for larger homes, industrial plants, hotels, laundries, restaurants. Water heater is high efficiency, less collectors and easy to install not affected by temperature and thus operate in chilly climate.