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Recycled Concentrated Solar Heater

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An old water heater was donated to my high school's pre-engineering class. After watching an episode of "The Cosmos," in which concentrated solar water heaters were used to power a steam engine that irrigated water, I was inspired to recycle the old water heater and turn it into a concentrated solar water heater.

Understanding the market

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Project goals

Turn an old household water heater into a solar concentrated water heater

Project steps:

  1. Model full scale design
  2. Model and build a 3-D printed small scale prototype
  3. Test effectiveness of design based on prototype
  4. Build full scale solar concentrator


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Item Cost
plastic filament free
3" pvc pipe free
glass tube $2.50
reflective mylar film $11.00

Full design

Item Cost
water heater free
chair legs free
glass tube $3.50
mylar film re-used


Your discussion.

Next steps

The next steps.


Your conclusions.


  1. George's Workshop solar thermal page

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