Build a Simple Solar Air Heater

This low-cost solar air heater plan lets you turn any south wall into a source of free heat.

The author and the south face of his Montana home equipped with a simple solar air heater.
Phot by Gary Reysa
Side-view diagram of the solar air heater shows the air flow pattern.
Len Churchill
solar air heater - Gary Reysa checking air flow
The author, Gary Reysa, checks airflow.
Joaon Reysa
solar air heater - materials for collector
The solar collector is built from these simple materials.
Gary Reysa
solar air heater - closeup of window
This close-up through the polycarbonate shows the absorber screen, the foam sealer molding, screws with EPDM washers, battens and a bottom vent.
Gary Reysa
solar air heater - diagram of collector face
Front-view diagram of the solar air heater panel.
Matthew T. Stallbaumer

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