There are more than 20 pages that cover the $1K solar water heating system, its components, component testing, performance testing, and the cost and payback analysis. So, you really need a roadmap to find everything -- here it is.
I'm very open to answering
questions on the system, but please check to make sure your question is
not already covered on one of these pages.
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A detailed overview of the $1K Solar Water Heating System...
Developments (or the lack of) in low cost solar water heaters...
The Copper/Aluminum Version...
Making or buying collector fins...
Prototype performance testing...
Galvanic corrosion...Optimizing the thermal conductivity of the fin to riser joint....
Small diameter headers...
Copper/aluminum collector flow distribution test...Prototype performance testing...
Serpentine drain back test...
Stagnation temperature test...The collector in the prototype system... (this is my actual system -- its the PEX/Aluminum version)
Controls, Pump and Heat Exchanger...
Month by Month performance... (performance of my system for a full year)
Collector performance... (how do these homemade collectors compare to commercial collectors?)Very cold day performance... (PEX collector performance on a -20F day)
Thermal performance of the plastic pipe coil heat exchanger
2nd test of plastic pipe heat exchanger
Prototype PEX collector.....
Stagnation tests of PEX collector.....
Drain back testing of serpentine collector.....
Copper/aluminum collector flow distribution test....Flow distribution test on wide collector with 3/4 inch manifolds...
Optimizing the thermal conductivity of the fin to riser joint....Making or buying collector fins and evaluating collector fin designs...
Example $1K System Documented by Their Builders... -- Thank You!
Gary July 24, 2009