Worried about your electricity bills for heating water throughout the year – be it summer or winter? And can’t even think of installing solar panels, because you stay in a region where the weather is most often gloomy and the days overcasted? No more worries. The Solar Evacuated Tubes have come up with all these solutions. There are basically two types of solar collectors for solar water heating in your home. The one is the conventional flat-plate collectors and the other is the evacuated tube collectors. The evacuated tubes have a number of advantages: the work on overcast days, in colder weather. Not only that, the tubes can be installed and replaced individually without special tools.
Acting like giant thermos, the evacuated tubes allow 93% of the sun’s radiation in, but only 3 to 5% out. There are almost negligible thermal conduction and convection losses (under 2%) because of the vacuum gap. It is effective for countries with freezing winters, as the design allows the system to work in very low temperatures (down to about -40°F).
Via: Goto Reviews
