Vitreous clay

A clay with a glazed surface that will not absorb water. Vitreous clay tile liners are usually installed in fireplace flues of site fabricated fireplaces.

Vulnerability

A measure of the possibility of something occurring

Wainscot

The wooden paneling of the lower part of an interior wall up to the dado height in a room.

Usage

The act of using something such as electrical power. One refers to electrical energy consumption as power usage over a period of time.

GFCI

Ground-Fault Circuit-Interrupter A device intended for the protection of personnel that functions to de-energize a circuit or portion thereof within an established period of time when a ground-fault current exceeds the values established for a Class A device....