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Evacuated tubes: make sure you don’t get burnt
Posted by Gabriel Wondrausch on 4th February 2009 at 8:34 am
Evacuated tube collectors are the Formula One of the solar thermal world. They are more efficient than other types of collector as they are almost perfectly insulated, and heat cannot pass through a vacuum. As the tubes are cylindrical, they are always perpendicular to the sun reducing the amount of…
Posted in: Solar heat & hot water
Calculators shed light on renewable choices
Posted by Cathy Debenham on 25th March 2009 at 11:16 am
Comparing costs of different renewable technologies and working out potential savings in cash and carbon has just got a whole lot easier. Encraft has developed a range of calculators that help you work out all the figures, so that you can see what's best for your house much more easily. Anyone can u…
Posted in: General, Energy efficiency, Biomass, Heat pumps, Solar electricity, Solar heat & hot water, Wind turbines
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