Venus Water Heaters -- Vacuum Tube Collector

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Vacuum Tube Collector

-	Introduction
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-	FAQs
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-	Product Specification

Gas Water Heaters

Superiorty Of Vacuum Tube Collector Technology

Vacuum tube collector	Flat Plate collector
1. Heat absorptions from the infrared rays of solar radiation instead of the visible light rays, so during winter and cloudy days, the system absorbs infrared rays as usual.	Heat absorption occurs from the visible light rays, On cloudy days performance will be affected significantly.
2. Heat absorbing surface is always perpendicular to sunlight because of spherical collectors	Heat absorption surface will be perpendicular to sunlight only for a short time.
3. Heating continues till late evening	It falls down after 2 p.m
4. It gives 10 o C higher temperature of hot water in winter & Cloudy days.	It is not possible in FPC as heating efficiency falls significantly on cloudy and winter days.
5. The vacuum inside the collector tubes vastly reduces overnight heat loss	Heat loss will be more at night from collector panels.
6. Salt or scale formation when using hard water will be reduced	Scale formation will be more and may choke the narrow pipes within the collector.
7. Scale deposits slide off the smooth glass walls to accumulate at the bottom from where they can be easily removed.	Once the scale deposits are formed it stops the flow of water; the removal of scale is also some what difficult.
8. Installation of the system is very easy	Installation of the system is not easy as VTC
9. Area required for installation will be very less	It require more area compared to VTC
10.Incase of damage to the collector tubes, individual tube can be replaced.	But here entire flat plate has to be replaced and it involves high cost for replacement.

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