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Stylized Text: ZEH: Lakeland, Florida.

PV Project Thermography - Control Home (5/7/98)

Return Air Leakage Revisited

This set of photographs shows the effect of a major leak in the return duct. As is clearly evident from the IR photograph, the return duct leak is effectively sucking hot air from the attic down through the wall cavity. As a comparison, the third photograph shows the return duct behavior in the PVRES house.

The temperature range is from 66°F (darkest colors) to 84°F (lightest colors).

Control House

Figure 1.
Figure 1a.

 

PVRES House

Figure 2.
no photo available