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Image:

Wrong – This second-story floor plan has red lines that indicate openings from the attic into the interstitial floor space

Wrong – This second-story floor plan has red lines that indicate openings from the attic into the interstitial floor space
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Wrong – Where possible, design walls and specify window sizes and placement to minimize the use of studs around windows; and seal all wood-to-wood seams to minimize air leakage through walls.

Wrong – Where possible, design walls and specify window sizes and placement to minimize the use of studs around windows; and seal all wood-to-wood seams to minimize air leakage through walls.
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Wrong: Drywall does not extend beyond the top plate of the interior walls. This installation has the potential for leakage at the sides where the ducts penetrate the side walls of the chase

Wrong: Drywall does not extend beyond the top plate of the interior walls. This installation has the potential for leakage at the sides where the ducts penetrate the side walls of the chase
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Wrong: HPWH inlet and outlet are piped to mixing valve inlet and DCW make up, driving erratic HPWH and mixing valve behavior

Wrong: HPWH inlet and outlet are piped to mixing valve inlet and DCW make up, driving erratic HPWH and mixing valve behavior
Image:

Wrong: Single sided ventilation without at least two windows, wing walls, and predictable wind directions is ineffective for generating wind-driven crossflow.

Wrong: Single sided ventilation without at least two windows, wing walls, and predictable wind directions is ineffective for generating wind-driven crossflow.
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Wrong: The exhaust air from one heat pump water heater is blowing into the intake of the heat pump water heater next to it

Wrong: The exhaust air from one heat pump water heater is blowing into the intake of the heat pump water heater next to it
Image:

Wrong: This air handling equipment is installed in the garage without isolating the equipment from the garage space

Wrong: This air handling equipment is installed in the garage without isolating the equipment from the garage space
Video:

Your Northern Home: Air Leakage/ Blower Door Test