A Double-Duty Solar Solution: How to Build a Solar Water Heater
A Double-Duty Solar Solution:This simple solar water heater provides both domestic hot water & space heating. You can adjust the size & design to meet the needs of your home. You’ll find nearly all the materials at your local hardware store, & to build it, you need only basic carpentry skills & a little plumbing know-how. Amazingly, the cost of this DIY system is only about 1/8 of what you would pay for an equivalent commercial system!