The second-floor trunk can be reduced to a 7-inch metal duct and run from the basement through holes cut into the floors and ceilings up to the attic, where it will run along the walls. The 2-inch flexible hoses connect the trunk in the attic to vents cut into the ceiling or the top of the walls. 14 thg 1, 2015 - It's easy to see why—air vents are designed to be camouflaged, by clinging discreetly to the ceiling—but that might be set to change. Keen Home's inaugural product is the Smart Vent, which could do for individual rooms what smart thermostats do for the house. 'In homes Small; Medium; Large. Position. A mini-split system doesn't use conventional ducts, and it can be an effective solution in a room with a low ceiling. Mini-split systems consist of an outdoor condenser and an indoor air handler that moves air in and out of the building. The air handler can be mounted on a wall or concealed behind a drop ceiling. 12 thg 10, 2016 - Find out what you should know about the different types of air vents in your . In some spaces, you may have the option of installing a register or decorative . Grilles are found in residential ceilings and walls, but a company may . may have one larger return grille or several small ones throughout the home. 21 thg 1, 2015 - You check the other rooms and they're getting air just fine. . 4 common causes of a single air vent with little to no air . But when we do have to open a small area of a wall or ceiling to access the problem, we have skilled . 17 thg 10, 2011 - A high-velocity, mini-duct HVAC system can bring an old house up to . cooled air to the rooms through vents on the floors, walls, or ceilings. 14 thg 1, 2019 - We'll go over the 6 most common causes of no or low air coming out of . in the room, usually located by the baseboards or on the ceiling. . They act similarly to grates on your vents; they can direct airflow to certain places, or pretty much . The air that flows through the system deposits small particles that . 5 thg 1, 2014 - duct system conditioned space modified plenum truss hvac installed . Insulate the ceiling, including the top and sides of the reverse bulkhead. 4 thg 7, 1992 - Installing ductwork for heating and air conditioning is a bit like putting . studs in the wall and then turn into a joist bay (the space between two joists). . (If the room is tiny, one duct may work, even if there are two external walls.) . which goes to the very top of the house, a cathedral ceiling on the third floor.