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2. Attic - Wikipedia

   en.wikipedia.org/wiki/Attic

   One common code requirement is that the total area of attic vents be equal to or greater than 1/150 of the floor area of the attic, with 50 percent or more of the vent area located in the upper portion of the attic. Vents and louvers should face away from prevailing winds to keep out driven rain. Soffit vents under the eaves normally provide ...

3. Register (air and heating) - Wikipedia

   en.wikipedia.org/wiki/Register_(air_and_heating)

   A grille is a perforated cover for an air duct (used for heating, cooling, or ventilation, or a combination thereof). Grilles sometimes have louvers which allow the flow of air to be directed. A register differs from a grille in that a damper is included.

4. Radiant barrier - Wikipedia

   en.wikipedia.org/wiki/Radiant_barrier

   When laying a radiant barrier over the insulation on the attic floor, it is possible for dust to accumulate on the top side. Many factors like dust particle size, dust composition and the amount of ventilation in the attic affect how dust accumulates and thus the ultimate performance of a radiant barrier in an attic.

5. NYT ‘Connections’ Hints and Answers Today, Thursday, December 12

   www.aol.com/nyt-connections-hints-answers-today...

   If you've been having trouble with any of the connections or words in Thursday's puzzle, you're not alone and these hints should definitely help you out. Plus, I'll reveal the answers further down

6. Drain-waste-vent system - Wikipedia

   en.wikipedia.org/wiki/Drain-waste-vent_system

   A sewer pipe is normally at neutral air pressure compared to the surrounding atmosphere.When a column of waste water flows through a pipe, it compresses air ahead of it in the system, creating a positive pressure that must be released so it does not push back on the waste stream and downstream traps, slow drainage, and induce potential clogs.

7. Trump’s intel pick was placed on government watch list for ...

   www.aol.com/trump-intel-pick-placed-government...

   Tulsi Gabbard, Donald Trump’s pick to lead the intelligence community, was briefly placed on a Transportation Security Administration list that prompts additional security screening before ...

8. How Lucali pizzeria owner used social media to help find a ...

   www.aol.com/famed-pizzeria-used-social-media...

   It started with a slice of pizza and led to a lifesaving surgery.. Theo Alano received the shock of a lifetime when he learned he was in end-stage kidney failure after going to the hospital for an ...

9. Passive ventilation - Wikipedia

   en.wikipedia.org/wiki/Passive_ventilation

   Both supply and exhaust happened through an unconditioned attic space, with exhaust air being extracted at ceiling height and air being supplied at floor level through a vertical duct. The device was found to provide sufficient ventilation air flow for a single family home and heat recovery with an efficiency around 40%.