Hot answers tagged solar-thermal
For me with a solar system in New Zealand, we've found the following quite effective: we've got a solar tank with 2 electrical elements in it, one at the bottom of the tank, plus another one about a third of the way down from the top. We run the bottom element overnight intermittently during the winter months when the whole tank is cool, the forecast is ...
Are the PEX hoses black and is the sun side of the re-purposed aluminum plates black? If not you may want to consider changing this so as to increase the efficiency solar energy absorption.
Yes, of course. There are a huge number of well-tested DIY projects you can find here: http://www.builditsolar.com/Projects/WaterHeating/water_heating.htm I would heavily recommend browsing that site and learning from the experience of others who have already done what you're interested in doing so you don't burn even more money.
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