© 2007-2008 Broseley Fires Ltd
INST
ALLATION OF THE APPLIANCE
15.0 FLUE
REQUIREMENTS
The chimney is possibly the most important part to your installation; great care should be given to its design.
An older chimney, in need of repair, is a fire hazard in any installation.
The chimney must be thoroughly swept, checked for soundness and suitability, before any connection is made
to the appliance. This must be carried out by a qualified person.
•
This appliance must be installed into a
‘Class 1 Chimney’.
If there is no existing chimney, then an
approved solid fuel, factory built, prefabricated block type or a twin walled, stainless steel flue can
be used. Get advice from a qualified chimney engineer. Flue sharing is not allowed.
•
The flue diameter of this appliance must be a minimum of 150mm.
•
If excessive draw is present, then a suitable ‘flue draught stabilizer’ should be fitted.
If the chimney suffers from down draught, then a special ‘anti-downdraught’ cowl will need to be fitted.
In exposed windy locations, a ‘stabilizing’ cowl may need to be fitted. The minimum cowl requirement that
we recommend, is a rain cowl with a bird guard.
•
To perform satisfactorily, the chimney height must not be less than 4 meters from stove to cowl.
•
Adequate access for sweeping the flue, such as a soot door, must be provided.
•
Flue pipe should be fitted inside the flue pipe collar (spigot) to prevent creosote and condensates
from running down onto the top of the appliance.
(see specifications for exact collar sizes)
•
All flue pipe has to be suitable for solid fuel and fitted in accordance with building regulations,
whilst complying with current legislation and manufacturers’ instructions.
•
If a rear flue is able to be fitted, the horizontal length must be no longer than 150mm.
16A
LINING THE FLUE
An insulated chimney is the most efficient and safe way to burn wood.
Tar deposits condense in a cool chimney. An insulated chimney helps prevent these deposits.
A standard chimney will gradually get saturated in tar, this is a fire hazard.
Tar stains may appear on the surface of the chimney breast inside the property.
16B
FLUE
TERMINATION
The height and termination of the flue is an important
part of the installation and consideration needs to be
made to ensure that the flue is high enough to create
sufficient draft to clear the products of combustion.
The termination of the flue outlet position which can
meet the requirements in common circumstances are
shown in Document J. If there are unusual
circumstances that will affect the efficient and safe
removal of the products of combustion; the height
and/or the separation distances shown in Document J
may need to be increased.
16C PROVISION OF A NOTICE PLATE
Wind induced downdraft
from nearby tall trees
WIND DIRECTION
