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Aura Vent Air Change Rate Tests Figure 1 - Floor Layout, 16 x 76, Manufactured Home The bedroom (East) is the center of the living area (Middle), and center of the dining area (West). The air-conditioning and heating system (HVAC) fan was not activated during the tests. Two portable fans were placed at foor level within the home to ensure good air Mixing throughout the tests. See #1. SunPipe® & Global Cooling ...the majority of the electric lighting load could be eliminated, according to Miller. "However, if daylighting is implemented improperly, we will increase the use of air-conditioning and heating energy far more than what we will save in lighting energy." Back in 1991, when Miller and his uncle first introduced the SunLight Pipe™, his... See #2. ENERGY-EFFICIENCY TAX CREDIT Unlike a tax deduction, which reduces the amount of income subject to tax, a tax credit reduces the tax itself. The tax credits that apply to qualifying Aspen air-conditioning and heating coils and air handlers are available for products placed in service from January 1, 2006 through December 31, 2007. To learn more about energy-efficiency... See #3. 1: http://www.roofvents.com [c1033685] 2: http://www.sunpipe.com [c1303551] 3: http://www.aspenmfg.com [c1144851]