Dunbrik FireFlexmaster User manual

FireFlexmaster
A Multi Fuel Flexible Chimney Liner
10 year Manufacturer Guarantee
172 Ferry Lane, Stanley
Wakefield, West Yorkshire, WF3 4LT
Tel: [phone] Fax: [phone]
Email: [email protected] Web: www.dunbrik.co.uk

FireFlexmaster
Flexible Chimney Liner
For Gas, Oil, Wood and Solid Fuel
Introduction
A twin skin flexible chimney liner, manufactured by H Docherty Ltd, used for
lining masonry chimneys serving Gas, Oil, Wood and ‘Clean burn’ Solid
fuel appliances.
The FireFlexmaster chimney liner is available in 316 grade of stainless
steel to BS1449 in diameters of 6” & 7”.
• Twin skinned chimney liner
• Smooth inner bore reduces soot build up
• Deeply corrugated outer provides protective casing
• 10 year guarantee
• Triple lock joint system
Approval
FireFlexmaster chimney liner has been certified as follows:-
BSRIA Cert No:- 14406/1 tested to BS EN1856-2: 2004
HETAS Approved
Supplied by
172 Ferry Lane
Stanley
Wakefield
West Yorkshire
WF3 4LT
Tel: [phone]
Fax: [phone]
Email: [email protected]o.uk
Web: www.dunbrik.co.uk

FireFlexmaster Multi Fuel Chimney Components
For Gas, Oil, Wood and Solid Fuel
Chimney liner (SF100)
A high Quality twin skin
flexible chimney liner
made from 316 grade
stainless steel, used for
lining masonry chimney
stacks.
Nose cone (NC)
The Nose cone fixes to
the bottom of the
chimney liner and helps
prevent snagging against
the side of the flue during
installation.
Adaptor (FA160)
Used to connect the
flexible chimney liner to
rigid stove pipe at the
base of the stack. The
chimney liner sits
between the two skins
shown on the top of the
adaptor.
Closure plate (SP140)
A stainless steel
closure plate. This plate
sits at the top of the
stack and, used in
conjunction with a Top
Clamp, provides the
support required.
Top clamp (TC130)
The top clamp is used
at the top of the stack
in conjunction with a
closure plate, providing
the support required.
Cannon chimney pot
(CANN300)
For use when the
existing chimney pot is
damaged – used with
the Suspended Cowl
Rain cowl (SFC306)
Provides rain protection at
the top of the stack. Used
with the closure plate, top
clamp and top sleeve fixing
method; where there is no
chimney pot.
Suspended cowl (SCS501)
Allows for the chimney liner
to be installed without
removing the chimney pot,
and incorporates a cowl.
Fire cement (Dunseal)
Universal Fire cement in
310ml cartridge

User Instructions
FireFlexmaster Multi Fuel Chimney Liner is constructed using high grade,
quality assured stainless steel. With care and correct use it will provide many years
of safe, and reliable service.
It is important that you read and follow these instructions fully.
• DO
burn the correct fuel for the appliance, such as standard fuel oil, gas, ‘clean burn’
coal, cured dry logs and cured dry peat.
• DO
burn "seasoned", dry wood - that is split logs which have been stacked for 12-24
months under cover outside allowing a free circulation of fresh air.
• DO
sweep the chimney before installation and then at least twice a year, more often
may be necessary depending upon the fuel and use. Instruct the chimney sweep
that only a bristle brush of the correct diameter should be used on rods - not a ball
and brush.
• DO
avoid chimney fires. The extreme temperatures involved can damage the liner.
• DO NOT
burn any of the following: Wet or "Green" wood, painted or treated timber,
household refuse, petrochemical by-product coal substitute. These can create soot
deposits and gases, which are toxic and will corrode the chimney liner.
• DO NOT
allow fires to "slumber". This produces corrosive condensation in the flue and
increases the chance of chimney fires.
• DO NOT
use this product on biomass boilers and stoves
Manufacturer Guarantee Scheme
FireFlexmaster Multi Fuel Chimney Liner 316 grade, manufactured by H Docherty
Ltd system is guaranteed for ten years (replacement of product only) subject to the
following conditions:
The appliance must be operating normally, set correctly and
using only good quality fuels from the specified list above.
The registration card must be completed and returned at time of purchase. The guarantee
is not valid if refuse or any type of plastic is burnt, or if the appliance is located where any
substance containing Chlorine or Fluorine can be drawn into the air intakes.
Tel: [phone]
Fax: [phone]
Email: [email protected]
Web: www.dunbrik.co.uk
For Gas, Oil, Wood and Solid Fuel

FireFlexmaster Installation
For Gas, Oil, Wood and Solid Fuel
PREPARATION
Good working practices and statutory health and safety considerations should be followed. The
installation of FireFlexmaster chimney lining is a two person job.
Safe working platforms or other means of access should be arranged to avoid accidents. Wear
protective gloves, goggles and dust-masks, particularly when handling dusty or sooty materials.
There is a danger of cuts and abrasions from the liner and metal fittings.
FireFlexmaster can be used with UK fuels such as standard fuel oil, gas, ‘clean burn’ coal, as
well as wood and wood products, providing it is suitably cured. The product is not suitable for
biomass boilers or stoves.
SIZE OF LINING
The following is a general guide for flue sizing but referral should be made to Building
Regulations ADJ Clause 2.4 and Table 2.
Solid-fuel stoves, room heaters, boilers and cookers:
Minimum 6” (150mm) diameter, 7” – 8” (175mm – 200mm) for larger or multi-fuel appliances.
Other appliances:
Consult the appliance manufacturer. Unless the appliance manufacturer recommends
otherwise, the diameter of the liner should not be smaller than the appliance outlet.
PREPARING THE CHIMNEY
Check that the appliance and chimney arrangements are satisfactory and that the walls of the
chimney are at least 100mm thick solid masonry; ensure that the chimney is structurally sound.
Clean the chimney using a brush and rods, your chimney sweep should be able to determine
the length of the chimney, you will need to know this to order the correct length of
FireFlexmaster flue liner.
FireFlexmaster chimney liner is supplied in one continuous length. It is better to over order as
the FireFlexmaster chimney liner cannot be joined together. Remove any terminals, chimney
pots, cappings, damper plates or any other obstructions, which might effect installation of the
liner. If there are severe bends or obstructions in the length of the flue, the chimney wall will
require opening to ensure proper access and installation. The openings must be repaired using
the appropriate materials and workmanship after installation.
There are two methods of installation at the top of the stack that we suggest;
1) Without chimney pot or
2) With chimney pot.
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Fax: [phone]
Email: [email protected]
Web: www.dunbrik.co.uk
For Gas, Oil, Wood and Solid Fuel

Method 1
Without Chimney Pot
1) Clear all existing mortar flaunching from the top of
the chimney stack.
2) It is very important that the arrows on the
FireFlexmaster chimney liner point upwards when
installed.
3) Attach the draw-cord to the nose cone. Use self-
tapping screws OR strong tape to secure the nose
cone to the end of the liner that will be connected to
the appliance or fireplace recess.
4) Lower the drawcord down the chimney to the
person at the fireplace recess. It may be necessary
to attach a small weight to the end of the drawcord.
Lower the length of FireFlexmaster chimney liner
into the chimney from the top, if necessary gently
pulling from below using the drawcord. Please
ensure that the liner does not over bend and does
not scrape over any sharp objects.
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5) When the chimney liner is all the way through
the flue, remove the nose cone and connect the
base of the chimney liner to the appropriate
adaptor using stainless steel self tapping screws
and seal with Dunseal. The FireFlexmaster
chimney liner should then be pushed back up the
chimney to the desired position.
6) Place the Top Plate over the end of the
FireFlexmaster chimney liner sliding it down the
liner to the top of the chimney stack. Secure the
liner in place using the Top Clamp.
9) Cut the liner at the
top of the chimney
stack leaving about
140mm above the Top
plate.
7) Cut the liner 140mm from the top of the Top
plate
8) Fit the Rain cap over the projecting
FireFlexmaster chimney liner and secure in
place with stainless steel screws. Flaunch the
Top Plate, Top Clamp and surrounding area with
a suitable mortar (capable of resisting rain and
frost.
For Gas, Oil, Wood and Solid Fuel

Method 2
With Chimney Pot
1) Check the chimney pot is not damaged or
broken and is no larger than 12” (300mm) overall
diameter. If it is you will need to replace the pot.
2) It is very important that the arrows on the
FireFlexmaster flue liner point upwards when
installed.
3) Attach the draw-cord to the nose cone. Use
self-tapping screws OR strong tape to secure the
nose cone to the end of the liner that will be
connected to the appliance or fireplace recess.
4) Lower the drawcord down the chimney to the
person at the fireplace recess. It may be
necessary to attach a small weight to the end of
the drawcord. Lower the length of
FireFlexmaster chimney liner into the chimney
from the top, if necessary gently pulling from
below using the drawcord. Please ensure that
the liner does not over bend and does not
scrape over any sharp objects.
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Fax: [phone]
Email: [email protected]
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5) When the chimney liner is all the way through
the flue, remove the nose cone and connect the
base of the chimney liner to the appropriate
adaptor using stainless steel self tapping screws
and seal with Dunseal. The FireFlexmaster
chimney liner should then be pushed back up
the chimney to the desired position.
6) Mark the liner level with the top of the
chimney pot. Gently pull the liner back up the
chimney and cut the liner approximately 100mm
below the mark.
7) Attach the Suspended Cowl to the top of the
liner – the bottom spigot is inserted into the top
of the liner. The fixing band is then tightened
around the liner to form a secure hold. The
FireFlexmaster chimney liner is then gently
pushed back down the chimney stack.
8) The Suspended Cowl is then placed over the
chimney pot and the fixing band on the outside
of the Suspended cowl tightened up.
For Gas, Oil, Wood and Solid Fuel

Photo courtesy of MacMetalcraft
Photo courtesy of Bellystoves
Photo courtesy of Bellystoves
Tel: [phone]
Fax: [phone]
Email: [email protected]
Web: www.dunbrik.co.uk