Question: solar air heater do it yourself?
Answer: Step 1: Size the Box. The first thing to do is figure out where you want to place the box or boxes you build. ...  Step 2: Lay Out the Box. The box layout is simple. ...  Step 3: Install the Hose. ...  Step 4: Make the Window Openings. ...  Step 5: Staple on the Plastic. ...  Step 6: Hook Up the Box. ...  4 Discussions.