Term
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Definition
| Check The Effectiveness of the FLUE |
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Term
Visual Inspection
Fireplaces |
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Definition
Clearance-between the end of the spigot and the closest surface in the catchment area.
Distance-From lowest level of the spigot the bottom of the catchment space.
Volume-of the catchment space
Hearth-The recommended sizes for the hearth. |
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Term
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Definition
| controls the pull of the flue and reduces the number of air changes in the room. |
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Term
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Definition
| Supports the brickwork above the builders opening |
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Term
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Definition
| The hole in front of the fireplace which allows access to the "catchment space" |
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Term
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Definition
| Comes in sections and has to be built in as a permanent fixture. |
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Term
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Definition
Area behind the appliance where debris falling from the chimneys inner surface collects.
(when servicing, CLEAR THE DEBRIS) |
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Term
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Definition
| S/B NON Combustible material and should extend at Least 300mm from back of fire and have a depth of at least 50mm,and project 150mm either side |
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Term
| Minimum distance for the spigot beyond the closure plate |
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Definition
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Term
| Clearance between the end of the spigot and the closest surface in the catchment area |
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Definition
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Term
| Distance from the lower edge of the spigot to the bottom of the catchment space |
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Definition
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Term
If chimney is NEW or Previously used for a gas fire
Volume and Depth below spigot change to |
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Definition
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Term
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Definition
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Term
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Definition
| Draws its combustion air from the space in which it is installed |
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Term
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Definition
| Conveys the undiluted POCs away from the combustion chamber |
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Term
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Definition
1)Prevents DOWNDRAUGHT
2)Helps dilute POCS by drawing in air
3)Helps break the pull of the secondary flue |
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Term
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Definition
| Carries POCs safely to the outside atmosphere,to aid "flue pull" must rise 600mm from d.d before any bend |
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Term
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Definition
takes its air for combustion from within the room in which the
appliance is situated and discharges the products of combustion into the same environment |
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Term
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Definition
do not take any air from the room in which the appliance is situated,
but may take the air from a void, such as a roof space. The term ‘balanced flue’ refers to a
system where the air intake is taken from a point adjacent to the flue gas extract and at the
same pressure zone, i.e. in balance |
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Term
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Definition
| Normally room sealed fanned draught types |
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Term
| Classification Of Flue Systems |
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Definition
Type A-Flueless
Type B-Open Flued
Type C-Room Sealed |
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Term
Open Flued Appliance Classification
B1 |
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Definition
| Incorporates a DRAUGHT DIVERTER |
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Term
Open Flued Appliance Classification
B2 |
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Definition
| No draught diverter (formally called closed flue) |
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Term
Open Flued Appliance Classification
B3 |
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Definition
| No draught diverter,connected to a single natural draught common duct system |
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Term
Open Flued Appliance Classification
B4 |
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Definition
| Incorporates a D.D ,connected to the terminal by means of a flue duct |
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Term
Open Flued Appliance Classification
B5 |
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Definition
| No D.D connected to the terminal by means of a flue duct |
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Term
Chimneys General:
Unless staed otherwise by M.Is |
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Definition
| MINIMUM 600mm vertical chimney is required directly above the appliance/D.D |
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Term
Chimneys General:
Unless staed otherwise by M.Is |
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Definition
Minimum size of a chimney for a gas appliance (other than a gas fire)
Shall not be less than the CSA of the appliances flue spigot |
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Term
Chimneys General:
Unless staed otherwise by M.Is |
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Definition
Chimney pot may not require replacement
where the size of the chimney exceeds 170mm |
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Term
Chimney Materials
Vitreous Enamel |
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Definition
| Only suitable for INTERNAL INSTALLATION |
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Term
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Definition
| Terminals must allow entry of a 6mm ball but prevent entry of a 16mm ball. |
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