Enclosed heating device powered by oil, coal, propane or natural gas.
Furnace soldering
Use of furnace heat to sufficiently raise the temperature of the parts to be soldered.
Furnace, horizontal
A furnace that lies on its side, pulling in return air from one side and expelling warm air from the other.
Furniture safety brackets
Three-part interlocking brackets to hold furniture securely to wall.
Furred
Surface or wall, which is leveled by the addition of thin wood strips.
Furring
Thin wood, or metal applied to a wall to level the surface for lathing, boarding, or plastering, to create an insulating air space, and to damp proof the wall.
Furring clip
Metal clips that are embedded in the mortar joints of the wall to secure masonry veneer to the wall behind it.
Furring strip
Insulating material attached around doors and windows to prevent air from escaping or entering a structure. The strip may be made of either artificial or animal fibers and is either tacked, stapled or glued to the surface. Furrow A deep narrow groove made in the dirt.
Fuse
(1) Safety device in an electrical system such as a strip of easily melted metal, set in a plug, which is placed in a circuit as a safeguard so that, if the current is too strong, the metal melts, breaking the circuit, to avoid fire. (2) To melt or join together by melting.
Fuse box or panel
Electrical distribution box containing the fuses that protect the circuits.
