Create Solar Heat for Metal Buildings Using TAP

The low-cost way to add solar heat to metal buildings, including how to build using the TAP system, cost of materials, and diagrams for ducts, dampers and framing.

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Grilles inside the building?at the top and bottom of the collector?allow room air to circulate through the solar heater and be warmed. Each duct opening should ideally be about twice as large as a horizontal cross section through the solar collector itself.
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