A water and energy conserving device that limits the amount of water that a faucet or shower head can deliver.
Flow welding
Welding process accomplished by pouring molten filler metal over a joint for enough time to reach the welding temperature, the joint to be filled and bonding created.
Flower spike
A flower head made up of a central stem with the flowers growing directly on it.
Fluctuate
To be continually changing or varying in an irregular way.
Flue
The structure (in a residential heating appliance, industrial furnace, or power plant) into which combustion gases flow and are contained until they are emitted to the atmosphere.
Flue baffle
A device to deflect, check, or regulate flow through a pipe.
Flue damper
A device to minimize heat loss through a venting system.
Flue gas
The gas resulting from the combustion of a fuel that is emitted to the flue.
Flue lining
Terra-cotta pipe used for the inner lining of chimneys.
Flue pipe
Airtight conduit constructed within a chimney using fireproof materials to carry away combustion gases and smoke occurring in a furnace or firebox.
