Build a Simple Passive Solar Water Heater and Save off Your Monthly Utilities!
This setup would work well in an on or off grid situation.
Step by step directions to build and have free hot water even if the power is out. It works well, even in the winter.
This is a fairly simple build that you can do yourself. There are no pumps or controls and is completely passive.
You can use glass from from used sliding glass doors and can usually find a used water heater to use as the storage tank, so the cost is minimal.
Check out the video below to learn more!