BS8511:2010 - Natural Fires

26
Supplementary Installation
Instructions
For use with Morsø Stoves canal boat chimney system
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Conforming to BS 8511:2010 Code of practice for the installation
of solid fuel heating and cooking appliances in small craft
page 1
Please read the instruction manual and these
supplementary instructions carefully before installation
In all cases the installation should comply with the recommendations
given in BSI Standards Publication BS8511:2010 Code of practice for the
installation of solid fuel heating and cooking appliances in small craft.
Health and Safety Precautions
Care must be taken when installing the stove such that the requirements of the Health and
Safety at Work Act are met.
Handling
Adequate facilities must be available for loading, unloading and site handling.
Stove weight including packaging = 70Kg.
The appliance, connecting flue pipe and chimney should be installed by
a competent person.
Ventilation
The ventilation requirement for the craft and the fitting of ventilators should follow
the guide lines give in BS 8511: 2010 Annex A
The effective area of fixed ventilation V, in square millimetres, for accommodation
spaces containing combustion appliances should be calculated from the following
equation:
V = 2200U + 650P + 550H + 440F
where:
U is the input rating of all unflued appliances, in kilowatts
P is the number of persons for which the accommodation space is designed
H is the nominal output rating of open-flued solid fuel appliances, in kilowatts
F is the input rating for all other open-flued combustion appliances, in kilowatts
NOTE Room-sealed appliances are excluded from this calculation.
Siting the appliance
The stove should not be positioned where it may cause an obstruction or impede
escape routes. The stoves location should not create a fire hazard or cause damage
to surrounding materials.
The stove should be separated from combustible materials in the surrounding structure
by the minimum clearances given in table 1 or by adopting the methodology given in
BS 8511:2010 section 7.
Any combustible material in the vicinity of the stove, whether exposed or covered,
e.g. by tiles, should be protected to ensure that its surface temperature of the combustible
material does not exceed 65 °C above ambient temperature.
In situations where the stove is to be fitted adjacent to a non-combustible structure,
there should be a minimum clearance of 25mm between the stove and the structure.
page 2
Table 1:
Minumum clearances to combustible surfaces:
Stove type
Behind the
the stove (A)
To the sides of
the stove (B)
Above
the stove
Clearance
to furniture
Morsø 1410
insulated chimney
200mm
550mm
600mm
650mm
Morsø 1430
insulated chimney
400mm
600mm
600mm
650mm
Morsø 1412
insulated chimney
100mm
600mm
500mm
700mm
Corner installation
A
B
°
45
B
B
The Hearth
The hearth temperature when installed with
a Morsø Squirrel 1410, 1412 or 1430 will not
exceed 100˚C and in accordance with
BS 8511:2010 can be installed on a minimum
12mm think suitable non-combustible
material. The 12mm thickness can be
a single sheet or may be constructed from
non-combustible layers. Example, 6mm
thick cement board finished with 6mm thick
ceramic tiles.
The hearth should extend 150mm to the
sides and the rear of the stove unless it is
adjacent to a suitable surrounding structure.
The projection of hearth in front of the stove
should be at less 225mm, this distance may
be reduced by surrounding the hearth with
a non-combustible upstand.
page 3
Securing the stove
The stove must be adequately fixed to the
hearth or the craft structure to prevent
movement. Hearth fixing brackets are
supplied with the Morsø chimney system.
Hearth
fixing
brackets
Fixings to secure the bracket to the hearth
are not provided as hearth material will vary.
Fit the hearth
fixing bracket to
the back face of
the rear legs
Placement of smoke hood
In some cases Morsø stoves come readyequipped from the factory with a smoke
hood, as shown in the diagram below.
NOTE: The smoke hood must not be fitted
if the chimney is less than 4.5M.
The chimney system used on a typical boat
installation is likely to have an effective
height of 2 – 2.5m and the smoke hood
must not be fitted.
Ensure that the firebricks, riddling grate
assembly and baffle plate are positioned
correctly.
Chimney System
The stove should be installed with the
purpose made Morsø chimney system
(part number 62908511 or 62918511).
Alternatively the chimney system should
meet the requirements of BS 8511:2010
section 8.
Height
The connecting flue pipe and or chimney
should not be less than 2M from the appliance
outlet to the chimney terminal outlet.
The chimney terminal should be minimum
600mm above the deck when
the craft is moored.
The termination may be shorter when the
craft in underway but may not be less than
150mm above the deck.
page 4
Back brick
Smoke hood
Baffle plate
Side brick
Riddling grate
assembly
Installation of the
Morsø chimney system
62908511 chimney system with fixed 12˚ bend
62918511 Straight chimney system
• 2 x 1M lengths inc 12˚ offset of chimney
• 2 x 1M lengths of chimney
• 1 x Deck plate
• 1 x Deck plate
• 1 x 550mm external chimney
• 1 x 550mm external chimney
• 1 x Terminal
• 1 x Terminal
• 1 x Blanking cap
• 1 x Blanking cap
• 4 x Clamping rings
• 4 x Clamping rings
• 2 x Hearth securing brackets
• 2 x Hearth securing brackets
• Self adhesive gasket
• Self adhesive gasket
Locating the deck plate
Use a suitable non silicon based water
tight sealant on the deck of the craft
before locating the deck plate.
Insert the deck plate, ensuring
it is the correct way up.
Male connection up - female
connection down.
page 5
Locating the deck plate cont...
Apply water tight sealant around the
location holes and insert fixing bolts.
Once the bolts are tightened and the
deck plate is secure seal around the edge
of the deck plate and around the chimney
pipe where it passes through the plate.
The Chimney
Apply the self adhesive gasket provided
around the outside face of the inner
chimney pipe.
The gasket should only be used on the
end of the chimney that connects to the
stove collar.
The gasket will form the seal between the
chimney and the stove; no other fixing is
required. However the chimney and collar
can be drilled and fixed if preferred.
Connect the two 1M lengths of chimney
system together.
The chimney connection is telescopic and
the internal insulation used in the upper
chimney will compress as the sections of
pipe are assembled.
page 6
Locate the stove on the hearth in the
approximate position (do not drill the hearth
fixings at this stage)
Locate the assembled chimney system onto
the cast iron flue collar of the stove.
Adjust the assembled chimney to the
required length and connect on to the deck
plate and fix with a clamping band.
If required a clamping ring can be fixed around the telescopic joint, however there is likely
to be a considerable overlap at the point and therefore the joint will be structurally sound.
This joint is designed to move and will overcome any issues relating to expansion and
contraction associated with a stove installations and the natural movement of the craft.
Note: Combustible materials around the
chimney such as the cabin headlining must
have a minimum clearance of 60mm from
the chimney.
The connection onto the
stove can simply be left or if
desired a clamping ring can
be used to finish the joint.
Finally connect the external
chimney pipe and terminal; use
locking bands as required.
Note: For travelling configuration
remove the external chimney and
attach the terminal direct onto the
deck plate.
page 7
Commissioning
General
An appliance/chimney installation should be tested by a competent person before final
handover to the user or client to ensure that it is safe, fit for use and capable of providing
the expected performance and service, in accordance with the method stated below.
The tests and checks given should be carried out before the appliance is lit for the first time.
Physical checks
The competent person should check that:
a) the installation is in accordance with the
design, including material specifications,
flue length and diameter
d) joints between the appliance and
chimney and within the chimney system
are secure and in good condition
b) the manufacturer’s installation instructions
have been followed
e) the separation of components from
combustible materials conforms to
manufacturers instructions or BS 8511:2010
c) there is no damage to any components
f) the appliance and chimney can be
fully cleaned, once the installation
is complete
Smoke evacuation test
ensure all the smoke is drawn up the
flue to atmosphere.
It should be ensured that the chimney is
complete and any removable section is
in the operating position and secured in
place according to the user instructions.
All doors, windows and closable vents in the
cabin should be closed and any extraction
fans within the cabin should be switched on.
Before commencing the test, the flue should
be warmed for at least 10 minutes by a gas
blow-lamp or similar placed on the grate.
A smoke pellet, with a burn time of
approximately 60 seconds or more should
be lit and placed on the appliance grate.
Further details and information can be
found on our website: www.morsoe.co.uk
The main fire door and ash-pan door of
the appliance should be closed and the
primary and secondary air controls should
be fully open.
The installation should be checked to
determine if smoke is being emitted into
the cabin; after 30 seconds, a check should
be made to ensure smoke is issuing from
the chimney outlet and from no other
point outside the cabin. If any smoke is
emitted into the cabin from any point on
the installation, warm the flue for a further
10 minutes and repeat the test. If any
smoke continues to be is emitted into the
cabin from any point on the installation the
appliance should not be allowed to be lit
until the fault has been corrected and the
test repeated and passed.
CD4590 Design & Print c9dd.com
This test should be carried out to