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Air registers move air into or out of a room as part of the HVAC system. They can be installed in ceilings, floors, or walls, and feature vents that determine airflow. They come in various materials and finishes, and require cleaning to maintain performance. Damaged or clogged registers are easily replaced.
An air register is a device used to move air into or out of a room. Logs serve as part of the building’s heating, ventilation, and air conditioning (HVAC) system and can generally be found in any occupied room within the building. As the furnace or air conditioner heats or cools the air, a fan directs this air into a series of supply ducts. An air register is located at the end of each of these supply ducts and serves as a transition between the duct and the room. A second set of air registers is located at the head of each return duct, directing exhaust air from each room to the unit.
Depending on the design of the room and the configuration of the HVAC system, an air register can be installed in the ceiling, floor or wall. Some fit into soffits or bulkheads near the ceiling, while others are designed for baseboard installation. In many facilities, installers place air registers just below the windows to minimize condensation and maximize occupant comfort. The placement of an air register can also be influenced by local building codes or existing building conditions.
Each air register features some form of vents or openings so that air can pass through. The size and configuration of these openings determine the speed and volume of the airflow. Older air registers consisted of flat metal panels with holes stamped into the face. Modern versions generally contain directional vents that can be adjusted to redirect airflow as needed. They may also include angled flaps or blades so that the air flows into the room at an angle, rather than in an uncontrolled manner.
Manufacturers produce air registers from a variety of materials, including metal and thermoplastics. Installers often select logs that match the surrounding room in which they will be installed. Some can be painted to match walls or ceilings, while others feature a polished or brushed metal finish. When choosing pre-finished models, buyers should look for finishes that match other hardware within the space.
The performance of an air register can be affected by the accumulation of dirt and dust over time. To keep the HVAC system working as intended, homeowners need to frequently clean and maintain these logs to remove dirt and debris. If an air register becomes damaged or severely clogged, it is often easier to replace the unit than to attempt to repair it. Most standard air registers are relatively inexpensive and require little effort to remove and install.
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