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| Family limited partnership
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A limited partnership whose interests are owned by member of the same family so that gift and estate taxes may be reduced, although the freedom or transferability of ownership is not available. |
| Family room
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Room in a home designed for leisure time that often includes a television and other entertainment amenities. |
| Fan
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Device which consists of one or more revolving blades or vanes which are attached to a rotary hub and operated by a motor and is used to move air for cooling or to force air into the firebox of a boiler. |
| Fan centrifugal
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Often used in forced air heating and air conditioning systems, these quiet fans consist of a rotating, cylinder-shaped cage with lengthwise slots, into which pieces of metal are fitted, cut around the circumference of its outer wall. The cylinder rotates the blades, which move the air out through the slots, allowing it to exit vertically to the cage axis. |
| Fan coil
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A heat exchanger coil in which a fluid such as water is circulated and a fan blows air over the coil to distribute heat or cool air to the different rooms. |
| Fan inlet vanes
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Blades placed at a fan opening (inlet) to direct and control airflow. |
| Fan or fanning
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Spacing tile joints to widen certain areas so they will conform to a section that is not parallel. |
| Fan velocity pressure
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The pressure corresponding to the outlet velocity of a fan; the kinetic energy per unit volume of flowing air. |
| Fan, axial
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Small portable fan, in which the airflow and the fan shaft are parallel. |
| Fanlight
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A window, often semicircular, with radiating glazing bars suggesting a fan that is placed over a door. |
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