GLOSSARY


Ash Pan
These can be either fitted or removable and are used to remove the burnt fuel (ash) from the stove. A stove burning solid fuel will require more regular ash removal than one burning well-seasoned wood.
Chair Brick / Milner Brick
This is a curved shape brick which makes the back of an open fireplace & directs the exhaust fumes from the fire into the chimney.
Data Plate
This is an information plate or sticker which is usually attached to the stove which gives details such as its manufacturer, output and any approvals / legislation criteria that it meets.
It can also sometimes refer to a data plate which is provided when a stove is installed which give details about the installation such as the type of chimney / flue used, the capability of the stove and who installed it.
Draught Stabiliser
This is fitted to the flue and enables the stove operator to increase or restrict the passageway through the flue pipe to control the flue draw.
Flexifuel
Our Flexifuel System takes away the need to choose between a wood burning stove, solid fuel stove or multi fuel stove, allowing you to use the fuel of your choice without compromising on heat output and efficiencies.
The unique crucible shape of the grate bars allows a better base for the fire to be built and constantly feeds fuel to the centre of the fire helping to ensure that there is no un-burnt fuel.
Discover more about our Flexifuel system here
Flue
A flue is a manufactured chimney which has been designed to take the exhaust gasses from the stove and vent them safely to the atmosphere.
Normally flue pipes are double walled galvanised sheet metal. When the stove is lit the updraft caused by a pre-heated flue helps to ensure an efficient burn is maintained.
Grate
These are made of cast iron and provide the ‘bed’ for the fuel and fire to burn on. They can be made in many shapes and sizes, some are even circular.
Often when burning a solid fuel such as anthracite the grate bars will need to be riddled so as to let the ash to fall through into the ash chamber below the grate bars where it can be emptied.
Hearth
A hearth is a fireproof area directly in front of a fireplace or stove. It is made from non-combustible material which is designed to preserve flooring's and carpets from any hot material which may fall from the stove during refueling or de-ashing.
HETAS
Heating Equipment Testing and Approval Scheme (HETAS). HETAS is a not for profit organisation offering competent person scheme for installers of biomass and solid fuel heating, registration for retailers and chimney sweeps and approval of appliances and fuels.
HETAS Website
Hotplate
This is cast plate that is used to seal the flue outlet of the stove which is not being used for the flue.
For example if you had a top flued stove, the hotplate would be fitted to the rear outlet of the stove and a spigot to the top.
Liner / Fire Brick
Liners (also referred to as fire bricks) are used to insulate the fire chamber in order to maximise combustion efficiency.
It is not always necessary to replace a liner if it is cracked, as it will still insulate the stove. However, once a liner begins to crumble, its insulation properties are reduced and this may cause damage to the iron. At this point they will need replacing.
Lintel
There are two types of lintels; constructional and throat forming.
Constructional lintels can be made of concrete or steel. They are used to span the top of the opening of a fireplace and bear the weight of the building materials above it.
Throat forming lintels are usually a chamfered block which is designed to provide a flat surface parallel with the upper firebrick in order to form an angled passage (or throat) for the fire exhaust fumes to flow through.
When installing an inset stove model you will need to take into consideration the depth of the lintel. Depending on the depth you may need to fit a flue gather to your stove. These come in two sizes a short reach (50mm) and a long reach (96mm) flue gather. These will allow you to connect your stove exhaust outlet to a flue pipe.
Peat / Turf
Peat is created from an accumulation of partially decayed vegetation which decomposes anaerobically in an acidic environment.
Usually sourced from bogs and supplied as briquettes, it can be used as a non-renewable source of fuel for multi or solid fuel stoves.
Pre-Heated Airwash
The airwash system directs pre-heated air evenly across the fire door, creating a shield between the fire chamber and the glass to ensure you can always see the flames clearly.
Primary Air
This is the main source of air for combustion. This is usually supplied through the lower air inlet for multi fuel stoves.
Register Plate
When a freestanding stove is installed into an open fireplace a register plate is fitted to seal the base of the chimney. These will usually incorporate both a hole for the flue to pass through and an access door which can be used to sweep the chimney.
Seasoned Wood
Burning wood requires a little effort and planning; to burn efficiently, wood needs to be well-seasoned with a moisture content of below 25%. You can buy ready-to-use wood locally or, if you have access to a free supply, you can chop and season your own.
Once chopped, the logs need to be stored for at least a year in a dry shelter with good air circulation. Burning unseasoned wood can seriously damage your stove and the build-up of tar and other hazardous vapours it causes may lead to a chimney fire. Check that it is sufficiently dry with our Moisture Meter. Ideal types of wood to burn include:
  • Beech
  • Birch
  • Elm
  • Hawthorn
  • Hazel
  • Oak
Secondary Air / Secondary Burn
The secondary burn system controls the flow of air within the stove, circulating air to allow any un-burnt gasses to re-ignite and generate extra heat.
SFA
Solid Fuel Association (SFA) is funded by solid fuel producers (including wood fuel), fuel distributors, appliance manufacturers and retailers. Their key aims are to promote greater awareness of the benefits of solid fuel heating among the general public and to encourage both safety in use and best installation practice for the domestic solid fuel and wood burning sector.
SFA's Website
Spigot / Flue Collar
Spigots are cast iron collars which are fitted to either the top or rear of the stove (depending on the model of the appliance and installation preferences) which are then connected to the flue pipe.
For example if you had a top flued stove, the hotplate would be fitted to the rear outlet of the stove and a spigot to the top.
Tertiary Air / Tertiary Burn
For burning wood, the tertiary burn system introduces hot oxygen into the firebox, directly at the heart of the stove. This then re-ignites any un-burnt gasses and results in greater efficiency, a cleaner chimney and less pollution.
Throat / Baffle Plate
Throat plates prevent the hot gases produced by the fire from going straight up the flue / chimney. It is designed to force the air to take a longer path to the spigot so as to allow more heat to be transferred into the room.
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