BKKdreaming Posted January 5, 2015 Share Posted January 5, 2015 Hi I would like to make a solar water heater to mount on the balcony , without any electricity it needs to be lightweight and portable so it can be brought inside if needed First version I would like to be portable , maybe hand filled from the top with an on/off hose valve on the bottom. is there a simple gauge to tell how hot the water is ? is there a hose valve with a temp gauge ? I know it will warm up in direct sunlight , but will it also warm up much just from being in 40c air ? will blue PVC pipe work ? Maybe in a "jailbar" pattern with larger pipes / manifolds top + bottom and the "jailbar" uprights attached . and later is there a decent 12 volt pump that could be battery operated and solar charged ? Thanks for your ideas.... PS....and am I over thinking this and will a black plastic bucket do the same thing ? anyway lets discuss all ideas to help others...... Link to comment Share on other sites More sharing options...
AYJAYDEE Posted January 5, 2015 Share Posted January 5, 2015 cheap and efficient Link to comment Share on other sites More sharing options...
gerry123 Posted January 5, 2015 Share Posted January 5, 2015 http://www.spheralsolar.com/SolarFreedomandSurvivalGuide.pdf Link to comment Share on other sites More sharing options...
Rooo Posted January 5, 2015 Share Posted January 5, 2015 Moved to DYI. Link to comment Share on other sites More sharing options...
sdanielmcev Posted January 5, 2015 Share Posted January 5, 2015 How much water and how hot? The black painted "jailbar" pattern works well for small (5 gallon) to 120°. Hot enough for a shower. Assuming 8 hours direct sunlight. Link to comment Share on other sites More sharing options...
BKKdreaming Posted January 5, 2015 Author Share Posted January 5, 2015 I think 5 gallons will work , I will need to calculate how much internal space it takes for 5 gallons , I am just not sure if the building owner will like it, thats why I would like it portable but I also would like to put something like it in my work shed at home, Link to comment Share on other sites More sharing options...
sipi Posted January 5, 2015 Share Posted January 5, 2015 Making solar hot water is relatively simple in Thailand through a thermosyphon set-up. The temperature control and storage will need to be well thought out. If it is too cool you may produce a breading ground for legionella. It if overheats it might pressurize. Link to comment Share on other sites More sharing options...
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