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Gas Fires, Electric Fires, Stoves, Fireplaces and Firesurrounds Jargon Buster

Here is a list of terminology and keywords you may come across whilst searching for your perfect fire or surround.


Air Vent

Means of air supply to a room (usually 100cm2) from outside air to assist the combustion process.


Balanced Flue

See the “Flue Types” page.


Brick Chimney

See the “Flue Types” page.


Class 1 Flue

See the “Flue Types” page.


Class 2 Flue

See the “Flue Types” page.


Convector Gas Fire

Convector gas fires give a more rapid and even heat distribution throughout the room. Convected heat occurs when a fire actively draws in cold air from the room, passes it through a heat exchanger to warm it up before sending it back out to the room as warm air.


Decorative Gas Fire

A gas fire designed to be installed in an open flue and to simulate a solid fuel fire. This term is also used to describe a fire that will give minimum heat output.


Fanned Flue

See ‘Power Flue’


Fire Bed

The area above a gas fire burner where the gas burns.


Fireguard

A frame placed in front of a fire to prevent accidental contact and used especially to protect children and elderly persons.


Flame Supervision Device

A safety device that monitors a pilot and cuts off the gas supply to the main burner if the pilot is extinguished.


Flueless or Catalytic Gas Fires

These fires do not require any chimney or flue or even an outside wall – they use the latest in gas fire technology and can be installed virtually anywhere – the combustion gases produced by the fire pass through a catalytic converter within the appliance which converts the poisonous Carbon Monoxide into harmless Carbon Dioxide and water vapour.


Fret (Fire Front)

External decorative fire front usually freestanding and finished in brass, silver or black.


Fuel-bed

Simulated fuel effect of a fire such as coal, pebbles or driftwood effects.


Gas Input

The amount of gas used by an appliance usually quoted in Kilowatts (kW) per hour on maximum setting.


Hearth

The floor of a fireplace that extends outwards into the room.


Heat Output

The typical maximum heat output of an appliance usually quoted in Kilowatts (kW) per hour.


Inset Fire

An appliance that fits into a fireplace opening, no part of which projects forward of the vertical plane of the chimney breast. Designed to fit into a standard fireplace opening – these types of real flame fires are the most popular and replicate the appearance and appeal of a coal fire without the inconvenience associated with burning coal. It is suitable for installation into a traditional (Class 1) or Class 2 flue. Balanced flue and Powerflue versions on some models are also available.


Low Lintel

A fireplace lintel (supporting beam) at a low level.


LPG

Liquid Petroleum Gas. Certain properties, especially in rural areas have no access to natural gas and the most common alternative is to have a LPG tank installed. Not all gas fires are compatible to work with LPG.


No-Vent (NV)

A gas fire that would normally operate without additional purpose provided ventilation.


Outset Fire

This type of gas fire hangs onto the wall or sits onto a hearth. It will usually have living flames or a glass front to increase efficiency. It is suitable for installation into a traditional (Class I) or Pre-Cast and Class 2 flue. Balanced Flue (no chimney or flue required) versions of some models are also available.


Oxygen Depletion Sensor (ODS)

A safety device which is part of the pilot assembly, that extinguishes the fire if there is a build up of harmful gases.


Permanent Pilot

A pilot light that is left on continuously, removing the need to turn it on each time the appliance is lit.


Piezo Ignition

Most gas fires are supplied with manual piezo spark ignition which allows the user to light the fire by simply turning a control knob (usually located discreetly behind the front trim of the fire).


Pilot

A small jet of gas that is used to ignite a main gas burner.


Power Flue

See the “Flue Types” page.


Pre-Cast Flue

See the “Flue Types” page.


Pre-Fabricated Flue

See the “Flue Types” page.


Radiant gas fire

All gas fires give off radiant heat. Radiant heat is like being warmed by the sun. The heat moves (radiates) outward from the fire into the room, the closer you get to the fire the warmer you feel.


Rear vent

A flue for a power flue fire whereby the flue exits from the rear of a fire directly through a wall to outside air.


Rebate

A Fireplace Surround rebate is the difference between the outside and inside leg return. It is the distance from the face of the back panel to the wall behind. Fire Surround rebates can occasionally be increased to allow for a deeper fire in flat-wall or shallow flue situations.


Remote Control

Operational control on a gas or electric fire. This type of control is ideal for those who want the added luxury of being able to adjust their fire from the comfort of their armchair. In many instances this type of control will be available only as an extra cost option – although more and more fires are now being produced with remote control as standard.


Slide Control

Operational control on a gas fire. This type of control is ideal for those who want to be able to switch the fire on/off or up/down without having to kneel or bend down to hearth level. The control lever is located at high level on the side of the gas fire. A mechanical linkage connects from the lever to the gas control knob beneath the fire. In most instances this type of control will be available as an extra cost option.


Spacer Kit

Additional accessory necessary when the depth of an opening is restricted for particular installations.


Trim

A decorative metal frame around an appliance used in conjunction with a fire front.


Ventilation

Means of air supply to a room (usually 100cm2) from outside air to assist the combustion process.

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