One of the most common types of solar design in the world is for the purpose of heating water. Use 'passive' solar power to raise the temperature of water and save electricity normally used by a hot water heater.


Instructions
Step 1
One of the most common types of solar design in the world is for the purpose of heating water. Use 'passive' solar power to raise the temperature of water and save electricity normally used by a hot water heater.
Final steps
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