How Solar Heating Works
Build this simple solar heater to tap a free source of heat.
This close-up through the polycarbonate shows the absorber screen, the foam sealer molding, screws with EPDM washers, battens and a bottom vent.
A solar collector panel.
MATTHEW T. STALLBAUMER
The solar collector is built from these simple materials.
The author, Gary Reysa, checks airflow.