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Fire/smoke dampers are similar to fire dampers in fire resistance rating, and also prevent the spread of smoke inside the ducts. When a rise in temperature occurs, the fire damper closes, usually activated by a thermal element which melts at temperatures higher than ambient but low enough to indicate the presence of a fire, allowing springs to ...
Smoke damper may be used to prevent the spread of smoke from the space of fire origin to other spaces in the same building. A combination of fans and dampers can exhaust smoke from an area while pressurizing the smoke-free areas around the affected area (inhibiting smoke infiltration into additional areas).
Unlike smoke dampers, they are not triggered by any electrical system (which is an advantage in case of an electrical failure where the smoke dampers would fail to close). Vertically mounted fire dampers are gravity operated, while horizontal fire dampers are spring powered. A fire damper's most important feature is a mechanical fusible link ...
Some registers, particularly those in commercial buildings or institutions which house large numbers of people (such as hotels or hospitals) have a fire damper attached to them. This damper automatically senses smoke or extreme heat, and shuts the register closed so that fire and smoke do not travel throughout the building via the HVAC system. [12]
A chimney damper is a metal plate that can be positioned to close off the chimney when not in use and prevent outside air from entering the interior space, and can be opened to permit hot gases to exhaust when a fire is burning. A top damper or cap damper is a metal spring door placed at the top of the chimney with a long metal chain that ...
Mainstays 26" Round Iron Fire Pit. ... It features two tiers, allowing you to cook and smoke multiple items at once, with a damper system that makes it easy to control the heat level. There's even ...
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