Solar Water Heater
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Uploader Comments (vqwerty)
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The weakness in this type of tube is the metal to glass seal that holds the heat pipe in the centre.
I disposed of this type of collector 5 years ago and only now sell the all glass tube where the absorber coating is on the inner glass of the two tubes
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@ranyerebrc I scrapped these tubes after to many lost the vacuum some 5 years ago, haveing been the importer and seller from 1998 to 2002
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@whatyouwannamyfriend : water. The sun hits the dark color inside the tubes and it heats the water, the hot water circulates to the top where it hits the copper rod. The rod then gets hot off the water, and the water cools down and circulates back down the center of the pipe to the bottom as it cools.
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what's inside those tubes anyways?... looks like an interesting liquid... i hope is not toxic...
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Nice jazz band.
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he is from Quebec Canada !
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This is an evacuated tube solar water heater; looks like Sunda. The blue absorber plate is inside a rugged glass tube with a high vacuum (low pressure), so it is insulated from the ambient air.
A thin tube runs down the center of the absorber plate, which contains a few ml of fluid, and is sealed at both ends. The fluid boils, becomes steam, and the steam then condenses to fluid in the copper bulb at the top. Bulb gets very hot; fits into water pipe to heat water. Search for Sunda Seido-1.
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Ummmmm how does comparing ELECTRICAL solar voltaic systems with SOLAR WATER HEATING systems add up?
22 of these tubes is enough to provide hot water to a family of 4. Its 95% efficiency is far above the ~15% achieved by regular photo voltaic systems.
Please get it right.
callmeshane303 3 years ago
True. Description changed.
vqwerty 3 years ago
so He's selling them on the side of a street ??? sketchy
ClarkeGrizzwald 3 years ago
he's doing a demo at a fair outside. he's not selling them.
vqwerty 3 years ago