The Supra chimney system range is specifically designed to
meet the demands of the latest high efficiency condensing
heating appliances. Supra 80mm - 350mm is supplied
complete with factory fitted and bonded elastomer seals,
offering peace of mind and reduced installation time for the
installer.
INTRODUCTION
Supra is a single-wall pre-fabricated stainless steel flue system,
primarily designed for gas and kerosene (28Sec) oil fired
appliances, which produce condensates and positive pressure
conditions as a function of their operation, such as high efficiency
condensing appliances.
DESCRIPTION
Supra is manufactured in 13 diameters ranging from 80mm to
600mm and consists of a range of lengths and fittings which
simply push-fit together, and which are secured with a Locking
Band. The entire system is manufactured from corrosion resistant
grade 316L (1.4404:X2CrNiMo 17-12-2) stainless steel and is
manufactured using a fully welded construction and precision
formed close tolerance joints.
Supra has been specifically designed for condensing applications
and product sizes from 80mm to 350mm inclusive are supplied
complete with factory fitted and bonded elastomer seals.
Product sizes from 400mm to 600mm inclusive are manufactured
from 1mm 316L material. As these diameters can be used for
re-lining existing masonry stacks, they are provided without seals
fitted as standard. Where seals are required in these diameters,
they need to be purchased and retrofitted on site.
The Supra product is available with a wide range of support
components that cater for both lateral and vertical structural
loading of the product. SFL does not recommend any other
system of support being used with the Supra product, unless
approved by SFL prior to installation.
Application
The standard Supra product is primarily designed for internal
applications and for use on high efficiency gas / kerosene fired
condensing appliances and for applications where the chimney
could be under positive pressure conditions not exceeding 200Pa
at a maximum flue gas temperature of 200°C.
Supra can also be used as a rigid chimney liner within a masonry
chimney.
When fluing condensing appliances and where the chimney
is external to the building, there is a risk that the condensates
could freeze. In such cases, SFL would recommend that a twin
wall insulated product such as Nova SM is used to prevent this.
Regulations now require all domestic external flue runs over 3m are
to be made from twin wall insulated product manufactured with a
stainless steel liner.
Care should be taken where there is a risk of accidental human
contact with Supra. Although most condensing appliance produce
flue gas temperatures in the region of 30-50°C, it is possible that
in non-condensing mode the flue gases can achieve much higher
temperatures. For instances where the flue gas temperature of
the appliance can rise above 70°C and there is the possibility of
accidental human contact, a twin wall insulated product such as
Nova SM should be used.
2
Approvals
The Supra product is CE certified to BS EN 1856-1 & 2 certificate
No. 0086-CPD-496040 & 0086-CPD-559419 to the performance
designations as detailed in Table A below.
Table A
Supra product designations to BS EN 1856-1/2
SupraBS EN 1856-1 T200P1WV2 L50050 O(300)
Supra 1.0BS EN 1856-1 T450 N1DV2 L50100 G(450)
Supra 1.0 (S) BS EN 1856-1 T200P1WV2 L50100 O(300)
SupraBS EN 1856-2 T200P1WV2 L50050O
Supra
(No Seals)
Supra 1.0BS EN 1856-2 T450 N1DV2 L50100G
Supra 1.0 (S) BS EN 1856-2 T200P1WV2 L50100O
Standard number
Temperature class
Pressure class
Condense resistance
D=dry W=wet
Corrosion class
Material specification
Liner grade 316L
Liner thickness: 0.5mm / 1.0mm
Sootfire resistance
G=yes
O=no
BS EN 1856-2 T450 N1DV2 L50050 G(450)
Product to EN1856-2 relate to chimney liners
within a non-combustible shaft.
(S) Denotes fitted Seals.
Quality
All components are manufactured under a quality assurance
scheme, certificate No. FM 557622, administered by British
Standards in accordance with BS EN 9001: 2008. In addition
SFL operate a CE approved factory production control system as
required under the Construction Products Directive 93/68/EEC.
Installation / Regulations
Connection to an appliance which is not connected to the fuel
supply, may be carried out by a competent person. However,
connection to an appliance that is connected to the fuel supply
MUST be carried out by an approved and registered heating
engineer, e.g. Gas Safe, HETAS (Solid Fuel) or OFTEC (Oil).
The Installation of the Supra product must be in accordance with
local building regulations and associated National Standards and
Code of Practice. Relevant standards are as follows:-
Document J - DOE Building Regulations
Section F - Building Standards (Scotland)
Section L - Building Regulations (Northern Ireland)
Solid Fuel & Oil Fired Appliances: BS EN15287-1:2007
Domestic Gas Installations: BS5440: Part 1: 2008
SUPRA JOINTING DETAILS
Fig 1
Where Supra is used to reline an existing stack, it is imperative that
the product is not supported by suspending from the top of the
stack. In all instances the liner must be lowered down the stack
using a Support Length at the bottom. Location Bands must
then be used at intervals not exceeding 3.0 metres. The Location
Bands are to be secured underneath a joint and are designed
to centrally locate and brace the system when lowered into an
existing chimney or shaft. When required, the Location Bands
can be manufactured to bespoke dimensions provided by the
customer to suit the required chimney / shaft dimensions.
For condensing (WET) applications it is important that horizontal
sloping runs are angled not less than 3° to the horizontal where
head room is limited, but preferably 5°. Various components are
available to facilitate either a 3° or 5° incline from the horizontal.
Drainage components MUST be used strategically within the
system to facilitate the removal of condensation, see Fig 3.
Above 350mm where Supra is used on condensing applications,
Elastomer Seals must be fitted and preferably bonded to the
product. Prior to making the joint, ensure that both mating ends
are clean and free of dirt and apply a generous amount of SFL Seal
Lubricant around the face of the seal to aid installation.
Commercial Applications
The Supra Product is suitable for commercial applications up to
and including 600ID. Due to the complexity of most installations,
SFL can manufacture to order bespoke components including
special angled elbows, tees and multi-inlet manifolds. Please
forward your requirements complete with detailed dimensioned
drawing to SFL Technical Department who will assess your
requirements.
SFL also employ state of the art software to model the
thermodynamic and flow characteristics of the proposed system,
allowing the most economic system design to be achieved. All
designs are calculated in accordance with EN 13384 parts 1 &
2. SFL can also offer advice on the Clean Air Act requirements
and calculate chimney heights to the requirement of the Clean Air
Act Memorandum. For further information please contact SFL
Technical Department.
Elastomer Seal (P1 / W Applications)
The Elastomer Seal is located in the recess of the female end of
the Supra chimney system as detailed in Fig 1. Product sizes from
80mm to 350mm are supplied complete with the Elastomer Seal
factory fitted and bonded. Above 350mm, Joint Seals must be
ordered separately. Where Supra is being used for condensing
(WET) / positive pressure (P1) applications up to 200Pa at a
maximum flue gas temperature of 200°C, Elastomer Seals MUST
be fitted at each joint within the system.
Note: Joint Seals are only suitable for gas and 28Sec (Kerosene)
applications within the above limits.
Where Elastomer Seals are being used, the chimney system must
be installed with a minimum of 3° or preferably 5° incline to the
horizontal to ensure adequate back drainage of condensation.
Failure to maintain an adequate incline and lack of drainage
component in the system may lead to premature failure of the
product / seals.
Fig 2
Joint Seal
Female
Socket
Ensure the Seal Lips
face down
See Fig. 2
Elastomer Seals
Supplied bonded on 80mm - 350mm
Standard Supra. Where used on
Supra 400mm and above, the Seal
has to be purchased separately using
the Code Numbers detailed below.
Replacement seals for all diameters
are also given below.
Seal SizeCode Number
80mm4006308
100mm4006310
130mm4006313
150mm4006315
180mm4006318
200mm4006320
250mm4006325
300mm4006330
350mm4006335
400mm4006340
500mm4006350
600mm4006360
Seal lubricant (P1/W))
This must be applied around the circumference
of the fitted seal to provide a lubricated interface
between the seal and the liner when the
product is used for positive pressure and wet
applications.
Code Number
Seal Lubricant (250ml)3107500
Only SFL lubricant should be used as it has been specially
formulated for use with both silicone and EPDM seal materials.
Failure to use SFL lubricant when installing seals in Supra product
may invalidate the product warranty.
3
INDIVIDUAL COMPONENTS
LENGTHS
Installed Length
B
A (Installed length)
Available in ‘nominal’ installed lengths as
detailed in the table below
Designed to be installed within the
system to allow access for inspection
and cleaning. The door closes on an
elastomer seal to provide a water and
pressure resistant joint and must only
be used where the flue gas temperature
will NOT exceed 200°C. For high
temperature applications both the inner
and outer door seal must be removed
prior to installation.
Designed to be used to make up a
required length between two components.
It should be used with a standard length
which MUST be ordered separately. It
can also be inserted into the female end of
other components, but however applied,
must engage a depth equivalent to at
least half the diameter of the Supra being
used. Adjustable Length (80mm - 350mm)
are also supplied with a special Locking
Band and Seal which must be used
for condensing applications. For sizes
above 350mm, the A Locking Band and
Seal MUST be ordered separately. See
Installation Instructions on page 11 for
further details.
The tee is provided with a 5° connection
on the branch to allow for condensate
drainage. Can be used at the base of a
vertical stack or to facilitate a 5° incline
Used to provide a 45° connection in a
system run or as the entry point to a
chimney. Can be used as an access
/ inspection point when used with a
Locking Plug or as a drain when fitted
with a Condensate Collector.
Used at the bottom of a vertical run,
usually under a Tee, to facilitate drainage
of condensates from the system. The
component includes a stainless steel BSP
connection to allow drainage pipework to
be connected by others.
Used as a drainage point on the end
of an inclined manifold or inclined run.
A
40° Elbow
Used to provide a 40° change of
direction from the vertical.
Incorporates an internal condensate dam
and BSP stainless steel connection for
condensate drainage. Also supplied with
fixed end cap. Note: The Cap cannot
Used to connect the Supra product to
the appliance. The interface between
the Adaptor and the appliance outlet
should be sealed with silicon sealant
when used on condensing appliances.
Used to connect the Supra product to
the appliance and drain condensate
from the system where used on high
efficiency and condensing appliances.
The interface between the Adaptor and
A
the appliance outlet should be sealed
with silicon sealant. The design helps
divert condensates through a 15mm OD
stainless steel tube to which a drain hose
can be connected, prior to entering the
appliance.
Designed to facilitate connection from
the Nova to Supra chimney system.
A
130mm
SizeACode Number
100mm634579704N
130mm634579705N
150mm634579706N
180mm424579707N
200mm424579708N
250mm424579710N
300mm424579712N
350mm424579714N
B
A
Adaptor to Flex
Used to connect the Supra product
to our Selflex liner or a generic liner
providing it meets the dimension of the
adaptor. Supplied with easy fit clamping
Used to connect from 80mm Supra to
100mm Selflex. Supplied with easy fit
clamping band.
Size
80mm96113117 4011710
SUPPORT COMPONENTS
Support Length
The Support Length can serve two
applications, firstly allowing a Supra
liner to be lowered down a chimney and
secondly as a Support Length when
204mm
used with the Support Plate (less the
collar).
In all cases, ALL the lugs on the Support
Length MUST be used when lowering
the product. The maximum length of
product that can be supported by the
component is 30 metres.
Used to provide lateral stability back to
support structure. This component must
only be used with rigid stays and can be
A
fitted anywhere on the pipe other than
between the swages. Structural calculations must be made for each application.
Rigid stays must be connected to the
three fixing points of this three part component. The hole diameters for the M6
nuts and bolts are 7mm. Constructed
from stainless steel.
SizeACode Number
80mm824069208
100mm1024069210
130mm1324069213
150mm1524069215
180mm1824069218
200mm2024069220
250mm2524069225
Consists of a stainless steel plate with
a three part support collar. The collar
A
rests on the plate and is located under
the bead/swage at a joint between
A
components. The three fixing points
of the collar rest on the plate, the hole
in which being large enough to permit
the passage of the swages of the Supra
construction.
The plate must be adequately supported
and secured to an adjacent structure.
This component can also be used in
conjunction with a Support Length, but
the collar would be discarded for this
application.
This component or a Wall Support MUST
ALWAYS be used above an Adjustable
Length where applied in a vertical
application, or where the Adjustable
A
Length would be otherwise liable to
load. The maximum length which can
be supported by this component is 30
metres.
steel and suitable for both internal and
external applications.
SizeACode Number
80mm63.53115084
100mm83.53115104
130mm923115134
150mm1123115154
180mm1423115185
200mm1623115205
250mm2123115255
300mm2663115305
350mm3163115355
400mm3663115405
500mm4673115505
600mm5673115605
Location Band
This component consists of a strap
which must be secured underneath a
joint. It has four equally located stainless
steel “spokes” designed to centrally
locate and brace the system where
lowered into an existing chimney or
shaft, and should be used at intervals not
exceeding 3 metres. Constructed from
SizeACode Number
A terminal designed for use where Supra
serves conventional gas fired equipment.
Incorporates a bird screen/mesh. For
condensing and positive pressure
applications it is suggested to use a
Tapered Top Stub with Mesh.
The Supra Terminal Kit is designed for
use where Supra is located within a
chimney or shaft. It consists of a plate
and a 100mm upstand (drum) which is
A
traditionally weathered to the top of the
shaft. The “drum” is significantly greater
in diameter than the Supra product, to
provide passive ventilation to the shaft
B
/ chimney. Four integral stainless steel
straps centrally locate the Supra when
B
A
C
E
D
the unit is lowered over the product.
The projecting length of Supra above
the “drum” is then rainproofed using the
In all instances the requirements of the Building Regulations must
be complied with and the appropriate references are: Document
J of the DOE Building Regulations, Section F of the Building
Standards (Scotland), Section L of the Building Regulations
(Northern Ireland). Reference should also be made to the relevant
British and European Standards governing the installation of flue
and chimney products for the associated fuel and appliance types
as detailed:
Solid Fuel and Oil Fired Applications: BS EN15287-1:2007
Domestic Gas Installations: BS5440: Part 1: 2008
Note: In the UK, connection to an appliance which is not
connected to the fuel supply, may be carried out by a competent
person. However, connection to an appliance that is connected to
the fuel supply must be carried out by an approved and registered
Heating Engineer, e.g. Gas Safe, HETAS (Solid Fuel) or OFTEC (Oil).
General
Supra must be applied such that the system complies with local
/ national Building Regulations and applicable standards. Where
used on condensing appliances, the range of components will
permit deliberate drainage of condensate, either back to the
condensate removal components within the Supra System range,
or through the heating appliance. No part of the flue system
should be constructed to form an angle greater than 45˚ from
the vertical. Although components are included that will permit
horizontal applications, they should only be used for connection
to the appliance. Where the system is being used for a condensing
application, it is required that sloping connections run at an angle
of 5˚ from the horizontal, using the Tees, Elbows and fittings
designed for that purpose.
If the system is to be used within an existing chimney or purpose
designed shaft, the range of support components will allow such
configurations and can also be used to provide an independent
and fully supported system both inside and outside a building.
Where Supra is installed in exposed applications or where the
external run is greater than 3.0 metres, SFL would recommend that
the Nova SM product is used. Nova SM is a twin wall insulated
stainless steel system offering a high degree of protection against
freezing. Adaptors are available to allow conversion between the
two products (See Page 7).
Ensure that both ends of the connecting joint are clean and free of
dirt / grit.
Standard Joint detailFig. 5
Male end
Locking
Band
Seal
Female
socket
Adjustable Length
The Adjustable Length consists of a slip section of SUPRA, the
lower non-beaded end of which is designed preferably to be
located into a standard length. It can also be inserted into the
female end of other components, but however applied, must
engage to a depth equivalent to at least half of the diameter of the
SUPRA being used.
Where pressure and moisture resistance are required a special
Locking Band & Seal is required to make the joint.
These are supplied as standard on sizes up to and including
350mm. Above 350mm the Locking Band & Seal MUST be
ordered separately.
Fig. 6
Lock Band detail for the Adjustable Length
for Condensing Applications
The Lock Band is
profiled such that
when used with the
Adjustable Length,
the toggle must snap
to the right, NOT to
the left
Joint
detail
and seal
profile
Gas Direction
Jointing
The Supra system is jointed by pushing the male end into the
female end of the proceeding component, and then applying a
Locking Band. The Locking Band must be installed so that the
toggle is only closed from left to right. See Fig. 4.
Fig. 4
Supra sizes from 80mm to 350mm are supplied complete with
factory bonded Elastomer Seals.
Above these sizes, Supra, depending on the application, can be
made pressure and moisture resistant using an Elastomer Seal
which must be ordered separately. The Elastomer Seal should be
located and ideally bonded as shown in Fig. 5
Note that the lips of the seal must be positioned as shown in Fig.
5. As the seal is designed to provide a secure grip to the male end
of the component, SFL Seal Lubricating gel should be used to
facilitate ease of installation and to prevent potential damage of the
seal during installation.
12
Note that the Locking Band has
a profile which will only correctly
locate one way round the joint.
For that reason, it MUST be
located so that the toggle is only
closed from left to right
Gas
Direction
Sprung toggle illustrated
Lock Bands fitted with
this type of toggle should
be adjusted so that when
the rod end is engaged in
the strike, the lever pin is
between 5° and 10° past
the centre line
Adjustable Lever toggle
rod end
Lever pin
5° - 10°
Fig. 6 illustrates the joint detail. Locate the seal over the socketed
female end of the length or component female end before inserting
the male end, and then pull the seal up so that the angled notch
on its inside locates over the turned end of the female socket as
shown. To facilitate easier assembly, apply SFL Joint Lubricant
to the seal prior to installation. The Lock Band has two designs
of toggle, either spring or adjustable. If using the band with the
adjustable toggle, it should be tensioned as shown in Fig. 6 Note
that whichever type is applied, the profile of the Lock Band is
such that it must only be applied one way round. If it is located
incorrectly, the joint will be both insecure and inadequately sealed.
IMPORTANT - Adjustable Lengths
Adjustable Lengths are not load bearing and must be supported
from above. Always ensure that either a Support Plate or Wall
Support Bracket is used directly above the Adjustable Length to
support the chimney products above.
Support
Supra must only be supported with the components in the
system range. The maximum length of product run that can be
supported by any component is 30 metres. Where lowered into
an existing chimney or shaft, under no circumstances should
the product be suspended from the top; always use a Support
Length at the base of the chimney to lower from, which is
designed for that purpose. The Wall Band and Bracing Bracket
provide lateral stability only, and should be used at centres not
exceeding 2.5 metres. The Location Band, used to centralise
Supra where lowered into a chimney or shaft, should be used
at intervals not exceeding 3 metres, and secured immediately
underneath a joint. Where used as a liner, either a Support Plate
or Wall Support must be used at the base to take the vertical
load of the stack. Where the Supra product is free standing
above the roof and its height exceeds 1.5 metres beyond the last
support or the roof, a Bracing Bracket must be used and tied
back to the structure..
Data Plate
It is a regulatory requirement that a data plate is to be completed,
positioned and secured by the installer where a hearth, fireplace,
flue or chimney is provided or extended. The data plate provides
essential information regarding the performance, specification,
designation and installation for the chimney system. The data
plate is to be completed by the installer using an indelible ink
and securely fixed in an unobtrusive but obvious position.
Acceptable fixing positions would be next to the electricity
consumer unit, water supply stop cock or gas meter within the
building or by the chimney / hearth. The data plate detailed is
provided by SFL, however many different data plates exist in
the market and each design can be different and tailored to the
supplying company.
Some data plates contain more or less information than detailed
below in Fig. 7, however it is a requirement that all data plates
have to provide the essential information deemed necessary
under the regulatory requirement, as follows:-
Property address.
Where the chimney / hearth is installed.
What fuels the chimney is suitable for (firing capacity).
Is the chimney suitable for condensing appliances / applications.
Chimney internal diameter.
Installers name and address.
Date of installation.
Distance to combustible material.
Product designation of the chimney to EN 1443, if relevant.
Fig. 7
Provision for sweeping and cleaning
Adequate provision should be made for inspecting and cleaning
the chimney system. This is particularly important for solid fuel
applications. SFL would recommend that chimneys serving solid
fuel appliances are swept as frequently as necessary but at least
twice a year and possibly three times a year if the appliance is
subject to long periods of slumbering. Access component are
made available within the range and should be installed to suit
the installation, unless sweeping can be undertaken through the
appliance.
It is important that a visual inspection of the chimney is
undertaken at the same time to ensure all joints are sound and
there is no evidence of a chimney fire having occurred.
Terminal Types
The Supra range offers a number of different terminal types
to suit various applications. Where used on condensing
appliances, the Top Stub with mesh would be preferable as this
offers little additional resistance to the flue gases. The same Top
Stub but without the mesh would also be the preferred option for
solid fuel, providing there is a drainage point at the base of the
chimney. As an alternative the Rain Cap could also be used to
help reduce rain ingress into the chimney system. For gas fired
appliances we would suggest that the Gas Terminal is used.
Testing
This is achieved by means of a flue flow test as detailed in
BS5440: Part 1: 2008. This can be summarised as follows:
After completing a visual and physical check of the system and
joints, and ensuring adequate air supply for combustion has
been provided in accordance with the appliance requirements,
close all doors and windows in the room in which the appliance
is installed.
Carry out a flow visualization check using a smoke pellet that
generates at least 5m3 of smoke in 30s by placing the smoke
pellet in the intended location of the appliance. Ensure that there
is discharge of smoke from the correct terminal only and no
leakage into the room. When the chimney is tested, there should
be:
• No significant escape of smoke from the appliance position.
• No seepage of smoke over the length of the chimney.
• A discharge of smoke from only the correct terminal.
If these conditions are not met, then the test has failed and
all faults must be rectified and the system re-tested and
passed before connection of the appliance to the fuel supply is
undertaken. For further information please refer to the relevant
standards and publications.
Note: A smoke test is subjective and by the nature of the product
standards a chimney is allowed a degree of leakage as defined
in BS EN 1856-1. For this reasons some wisps of smoke may
be seen over the length of the chimney and this should not
necessarily constitute a failure. It is therefore a matter of expert
judgement as to whether significant leakage constitutes a failure.
A product with a performance designation under EN 1856-1
with a leakage classification of N1 is allowed a maximum leakage
rate of up to 2.01/s/m2 at a positive pressure of 40Pa.
For further information and guidance please refer to Appendix E
of the Building Regulations Part J.
Handling
The product is relatively easy to handle, but care should be
taken when holding, fitting or assembling any part of the system.
Users are advised to take suitable procurations, gloves etc., to
avoid injury on any sharp exposed edges.
Chemical Contamination of Combustion Air
Under no circumstances should Supra be used where there is
the possibility of chemical contamination of the combustion air.
Environments where processes such as de-greasing and dry
cleaning should be avoided as well as any other environment
where low level contamination of the combustion air supply is
possible. Such environment can lead to accelerated corrosion of
the Supra system and premiture failure of the product.
13
14
15
The information contained in this brochure was
accurate at the date of publishing. However the
company reserves the right to introduce at any time
modifications and changes of details as
may be necessary. To avoid any misunderstanding,
interested parties should contact the company to
confirm whether any material alterations have
been made since the date of this brochure.
National Runner-up
FM557622
0086 - CPD - 496040
0086 - CPD - 559419
UK Sales and Customer & Export Services
SFL, Pottington Business Park, Barnstaple, Devon EX31 1LZ
Tel: 01271 326633 Fax: 01271 334303 www.sflchimneys.com info@sflchimneys.com
Consider your environment and download the latest
electronic version of the Supra sales literature direct
from our web site using the QR code above.
In order to minimise the environmental impact on this publication, it has been printed locally, using vegetable based inks on FSC® certified paper.