This is a pretty good DIY project that will give you free heat courtesy of the Sun when finished. This will show you a system for storing heat in a simple to build solar thermal storage tank.
It’s a very easy to build, inexpensive, CPVC liquid solar hot water collector that you can use to heat your home or for domestic hot water. You can adjust the size and design to meet the needs of your home. Solar water heating systems have a good economic payoff, and are manageable systems to install or build as a DIY project.
Watch this amazing video and learn how to convert sunlight into renewable energy for water heating using simple CPVC pipes and build your own solar collector.
Image source: G. Scott Davis
Move on to the Next Page video: Super Simple, CPVC Solar Hot Water Collector.