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Brick or stone build
chimney ( Class 1 )
Convensional chimneys are easily recognisable. The stack rises
well above the roofline and is topped by atraditional chimney pot
or, possibly, a gas terminal. |
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Pre-Fabricated Flue (
Class 2 )
You will see a metal flue cowl on your roof. Some are all metal
whilst others may terminate through a terracotta pot. |
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Pre-Cast Flue ( Class 2 )
Many modern homes have been built with such flues. You can
readily identify them by either a metal flue cowl on your roof or by
a raised ridge terminal. |
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No chimney or flue
In this case you will need a balanced flue, Powerflue or a
flueless gas fire. |
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Balanced Flue
Balanced flues do not require an electricity supply. They operate
via a twin-walled pipe which exits horizontally through an external
wall or vertically through the roof. The outer pipe draws air from
the outside while the inner pipe expels the products of combustion.
Balanced flue fires are always glass fronted.
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Powered Flue
A powered flue uses an extractor unit mounted on an outer wall to
vent the combustion gases directly outside. A mains electricity
supply is needed to operate the system. They open fronted fires no
glass. |
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