Overview: In 2006, after completely re-insulating their house, a couple from Burke, Virginia decided to go one step further to make their home more energy ef?cient. After much research on solar hot water systems, they decided to install an Apricus AP-30 Evacuated Tube Collector on their 3,000 sqft home. The collector was installed on the roof on the back of the house so only a sliver of the top of the collector on the roof line is visible

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