Glossary

 

Ash- The solid residue left when combustible material is thoroughly burned or is oxidized by chemical means.

Ash Door- A door, with a frame, providing access to the ash dump, through which the ashes can be removed.

Ash Dump- An opening, usually with a hinge door and located at the bottom of the fireplace, through which ashes can be dumped.

Chase- An enclosure for a chimney that is used to separate the chimney from the living area or to hide an exterior chimney from view

Chimney- One or more passageways, vertical or nearly so for conveying flue gases from the appliance to the outside atmosphere.

Chimney Cap- A protective covering or housing for the top of a chimney intended for preventing the entry of rain, snow, animals, etc.

Chimney Connector- The pipe connecting a fuel burning appliance to a chimney.

Chimney Fire- Burning of creosote, soot, or other combustible deposits within a chimney or chimney connector.

Clean out Opening- An opening or hole in a chimney designed to allow access to the flue or ash dump for purposes of removing ash, creosote, soot and other extraneous matter.

Creosote- Chimney and stovepipe deposits originating as condensed wood smoke.

Damper- A valve, usually a movable or retractable plate, for controlling the flow of air or smoke.

Direct Connect- A connector from an insert or hearth stove to the first flue tile in a fireplace.

Prefab Chimney- Chimney composed of listed factory-built components, including a chimney, that are assembled in accordance with the terms of the listing to form the completed fireplace.

Prefab Fireplace- Fireplace composed of listed listed factory built components, including a chimney, that are assembled in accordance with he terms of the listing to form the completed fireplace.

Firebox- Chamber of a fireplace or stove where the fire actually burns

Firebrick- Brick composed of clay and silica and designed to withstand high temperatures such as those found in a firebox.

Fireclay- Clay that withstands high temperatures without deforming or cracking.

Flashing- Sheet metal or other materials used in waterproofing roof valleys, hips, or the angle between a chimney and a roof.

Flue- The passage in a chimney for conveying flue gases to the outside atmosphere.

Flue Liner- Special liner required by codes and standards to cover the inner surface of the flue. The liner serves as a buffer between flue gases and chimney walls and is designed to contain the products of combustion.

Hearth- Floor area within the firebox of a fireplace or a fireplace stove.

Lintel- When referring to masonry fireplaces, the horizontal noncombustible member, usually of masonry or steel, spanning the opening of a masonry fireplace to support the load above.

Mantle- A shelf or facing ornament above a fireplace opening.

Masonry Chimney- A field-constructed chimney of solid masonry units, bricks, stones, listed masonry units, or reinforced Portland cement concrete, lined with suitable chimney flue liners built in accordance with applicable building building code requirements.

Masonry Fireplace- A hearth and firebox of solid masonry units such as bricks, stones, listed masonry units, or reinforced concrete, provided with a suitable chimney.

Multi-flue Chimney- A single chimney containing more than one flue.

Parging- A thin coat of mortar applied to the inside of a masonry chimney or to the walls of a smoke chamber.

Smoke- Solid, liquid, and gaseous products of combustion that leave the combustion zone unburned and are carried through the venting system by draft.

Smoke Chamber- Chamber in a fireplace directly above the smoke shelf and extending to the base of the flue.

Smoke Shelf- The area at the bottom of the smoke chamber created as the back wall of the firebox arches forward. The shelf is located at the intersection of the smoke chamber and the firebox. A damper is normally located on the forward side of the smoke shelf.

Soot- Soft, black, or brown, velvety carbon particle deposits inside appliances, chimneys or connectors, originating in oxygen-poor flames.

Spall- To chip or flake, usually associated with masonry construction.

Stack Effect- The tendency for warmer air to rise within a structure, creating lower pressure in the lower areas of the building.

Thimble- Fixed or removable ring, tube, or lining usually located in the hole where the chimney connector passes through a wall and enters a chimney or vent.

Throat-Opening above a fireplace firebox through which flue gases pass from the firebox to the flue. The fireplace damper frame assembly is usually located at the throat of a fireplace.

Video Scanner- System, incorporating a closed circuit video camera and television or monitor, for inspecting the interior of flues and other inaccessible areas.

 

 
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