Morso DB15 User manual

Solid Fuel Central Heating Stoves Manual Issued - 22/07/2014 (482)
D 15
HIGH-EFFICIENCY SOLID FUEL CENTRAL-HEATING
STOVE WITH AUTOMATIC CONTROL
Multifuel Models and PureWood Models
INSTALLATION AND OPERATING INSTRUCTIONS
LEAVE THIS DOCUMENT WITH THE HOUSEHOLDER!
These stoves exceed the safety and performance requirements of European Standards
Intermittent burning solid fuel roomheaters for installation with a single dedicated chimney.
Independently tested y SGS Nederland BV. Notified Body 0608 - May 2011
Morso D 15 Central Heating Stove
with DTRG Downburn Firebox
Fuel Anthracite iomass
( eech Logs)
iomass
(Joinery Waste) Lignite ituminous Coal
Test Standard EN 13240:2001 +A2:2004
Test Cycle 2.0 kg per 1 hr 1.3 kg per 0.75 hrs 2.9 kg per 0.73 hrs 3.4 kg per hr 2.5 kg per hr
Flue Draught Pa (ins WG) 12 12 12 12 12
Efficiency % 80.7% 80.0% 78.2% 79.5% 80.7%
Recommended Rating to room kW ( tu) 5.8 (19,700) 5.7 (19,600) 6.2 (21,200) 7.8 (26,800) 9.1 (31,300)
To water, kW ( tu) 6.3 (21,600) 8.8 (30,000) 7.9 (26,900) 7.7 (26,200) 7.6 (25,800)
Total Output, kW ( tu) 12.1 (41,400) 14.5 (49,600) 14.1 (48,200) 15.5 (53,000) 16.7 (57,100)
Mean Flue Gas Temp Rise ºC 200 °C 263 °C 251 °C 276 °C 241 °C
Minimum room air entry requirement 8000 mm²
Minimum Clearance to com usti les 100mm at sides and ack
Temperature underneath can exceed 100°C - traditional hearth required
Emissions as if
02=13%
NOx mg/m³ - 98mg/m³ - - -
CO % 0.06% 0.24% 0.07% 0.24% 0.23%
CxHy mg/m³ - 77mg/m³ - - -
Gas flow g/sec -
Smoke Emission mg/m³ - 48mg/m³ 47mg/mª 42mg/mª 733mg/mª
NOTE: The ratio of water to room output has een corrected for net/gross errors.
I declare that this information is true, these products meet the requirements of Harmonised Standards and are fit for sale.
Signed on ehalf of the manufacturer y Glyn Hughes, Design Engineer, at Winster, Der yshire, England 22. Jul. 2014
Read these instructions! Use only recommended fuels!
For open-vented water systems only - Maximum pressure 2bar
This document, when completed y the installer, constitutes part of a 'Hearth Notice' for purposes of
Building Law. It must e left with the householder and placed where it can easily e found.
INSTALLED AT LOCATION:
BY:
EMERGENCY CONTACT:
Flue Draught
measured on
commissioning:
Fuel used on
commissioning
I definitively assert that this installation is safe, has een lit and demonstrated to the
householder, conforms with current uilding regulations and with these instructions
SIGNED: DATE:
TO FIND A QUALIFIED INSTALLER, FUEL SUPPLIER or CHIMNEY SWEEP, CONTACT:
UK: The Solid Fuel Association, 7 Swanwick Court, Alfreton, Der yshire DE55 7AS Tel:[phone] www.solidfuel.co.uk
RoI: Irish Nationwide Fireplace Organisation, 162 Capel Street, Du lin 1 Tel:[phone] www.fireplace.ie
Morso UK Ltd, Unit 7, The I O Centre, Valley Drive, Rugby, Warwickshire, CV21 1TW UK
The Morso D 15 may be used in smoke control areas when operated strictly in accordance with these instructions and with
the attached Soliftec Smoke Advice Sheet No1 (www.soliftec.com/smokeadvice.htm), when burning:
UK: Untreated wood logs, lignite riquettes or authorised smokeless fuels (Exempted from s20 of the Clean Air Act 1993)
RoI: Wood logs, smokeless fuels or peat riquettes, ut not petroleum coke (Control of Atmospheric Pollution Regulations, 1970)
1
Pa
WG

Building rules and regulations are availa le at www.soliftec.com
INSTALLING a stove is a 'controlled service', the law expects that
it is either supervised y a qualified installer or that the uilding
inspector is informed. Check with your local authority.
AS ESTOS: Your stove does not contain as estos, ut take care
to avoid distur ing as estos in an old installation.
WEIGHT: Your stove is heavy (182kg) take great care when
moving it and ensure that the intended fireplace can support the
weight- consider fitting a load distri uting plate.
YOUR CHIMNEY, y ecoming warm, makes the gas inside it
rise, pulling fresh air into the stove to make it work. It must:
●Generate a draught in use of at least 12Pa (0.05ins wg)
●Be capa le of withstanding the temperatures generated.
●Be a solutely incapa le of leaking fumes into the dwelling
Several different forms of chimney may e suita le, ut they will
commonly need to e:
●At least 5m high.
●Terminating at least 1m a ove any roof ridge.
●Have an internal cross-section equivalent to not less than
150mm dia and not more than 0.14m² (eg 375 x 375mm)
●Be free from even the slightest crack or source of leakage.
●Have no ends sharper than 45º.
●Be swept and entirely free of o structions
●Be connected only to this one appliance.
●Be of thick masonry or otherwise adequately insulated.
●Conform to local uilding regulations.
Special rules apply where the flue passes through tim er, thatch or
other vulnera le materials- take specialist advice.
It is not possi le to access the chimney for cleaning through the
fire, fit hatches to provide access.
YOUR FIREPLACE: Stoves ecome VERY hot, the setting must
e made entirely of dura le fireproof materials. take care to
o serve the safe distances to com usti les shown on the front
page.
AIR SUPPLY: Your stove needs fresh air from outside to reathe -
the air inlets should equal a out 550mm² for each kW of nominal
output.
This degree of air can often e provided y leakage around door
frames etc, especially in older uildings. It must e a matter for the
judgement of the installer as to whether an extra permanent air
vent is required. Where is needed, it is wise to fit an outside vent
as close to the fire as possi le. Correctly sited and sized, air will
only move etween the vent and the stove, preventing unpleasant
draughts.
An extractor fan, or another fuel-using appliance, or an open
fireplace or chimney, in the same uilding, can remove this air.
FITTING
Fasten the flue outlet to the top of the stove and seal to the chimney using a short (up to a out 0.5m) length of uninsulated pipe. Two
possi le ways of doing this are shown.
Whichever method is used it is imperative that the route for
gases from the stove to the chimney terminal is completely
air-tight; even the tiniest gap or crack can spoil the updraught.
Seal all joins with fireproof cement and/or heatproof rope.
Adjusting the thermostat: Check the thermostat on the
side of the stove before fitting! With the fire cold, the
thermostat sensor in place in its hole towards the rear top of
the oiler and the thermostat control turned to '1' the air
closure 'damper' plate should e approximately 7 mm open.
HEATING SYSTEM DESIGN
This appliance is for use with an open-vented water heating circuit at a maximum pressure of 2 Bar, equivalent to a static head of 18
metres. Suggested circuit designs are given on a separate sheet.
IMPORTANT! CHECK THE INSTALLATION !
Once installed, light the fire, demonstrate it to the householder and check that:
1) It urns controlla ly and does not emit fumes to the room
2) The route for gases from the stove to the chimney terminal is completely airtight, uno structed and a le to e swept . (access
hatches may e required.)
3) The installer has completed the notice at the eginning of this document, has demonstrated the method of lighting, control and cleaning,
and pointed out the safety requirements to the householder.
4) The entire fireplace construction is of dura le fireproof materials.
5) The flue presents a draught in use of at least 12Pa
6) A CO alarm is fitted
7) The water system can never exceed 2 Bar pressure, has provision to dissipate or store surplus heat, can accommodate oiling,
and has means to minimise the circulation of cool water through the oiler.
GUARD AGAINST CONDENSATION! Solid fuels contain water which can condense on cool oiler faces to cause rapid
corrosion and failure. Always fit a device such as a low-level thermostat to minimise cool water circulating through the oiler.
ALLOW FOR OVERHEATING! This oiler has automatic control, ut there must e some way of dissipating surplus heat -
fit a high-level thermostat to override controls and run the central heating if there is risk of oiling. Follow the rules on the
accompanying Circuit Design leaflet. An old-fashioned 'heat leak' radiator ill not suffice.
2
THIS APPLIANCE ECOMES EXTREMELY HOT
AND CAN PRODUCE POISONOUS GASES.
A fire-guard should be used if children or the infirm are
present. The installer is required to EXACTLY follow
these instructions and to completely comply with all
local, national and international standards.
Through steel or concrete closure plate
(with cleaning door) into old, oversized,
chimney. Steel sealing collar.
45º top outlet sleeved
through wall into external
insulated flue. Cleaning
hatches on ends.

LIVING WITH YOUR STOVE
Every fuel, chimney and condition of use is different. Only
experience will show which are the est settings for you.
HOW THE D 15 WORKS: The Morso DB15 is a 'down urn' stove
where the waste gases pass do n through the hot fire and into an
'after urn' cham er (A) at the ack where even smoke is urned
away. This system gives very clean com ustion and extremely
high efficiency on a wide range of fuels.
LIGHTING If lighting after a period of non-use, do check that the
flueways and chimney are completely clear. Empty the ashes if
need e. Place two or three firelighters close together, or screwed-
up paper covered with dry sticks, at the ack of the grate and light
them. When they are urning well
gently fill the fire with dry fuel.
Down urn stoves ignite very
quickly, ut they egin to urn at
the ack, so the full flame may not
e apparent for a few minutes.
FILLING: (C) Don't fill to the point
where fuel touches roof of the
stove.
CONTROL. Correctly installed
(see separate sheet) this stove
will control itself for minimum fuel
consumption.
The manual control on the top of
the door overrides the automatic
control. It can e helpfully used
when first lighting or refuelling, ut
keep it shut, or nearly so, in normal use.
The Thermostat Dial on the lower right of the stove controls a
device which senses the temperature of water in the oiler and
automatically allows air in to make the fire urn more or less
fiercely, so that water always leaves the oiler at a out 50ºC on
the lowest setting to a out 90ºC at the
highest. Once you have found the most
appropriate setting for your house - usually
a out midway - it shouldn't e necessary to
adjust it again. To adjust the house
temperature, adjust the radiator thermostats
(if fitted) or your central room thermostat.
These controls will then automatically limit or
allow the flow of water through the oiler,
which will adjust itself accordingly. Your fire
will die down or flare up and the central
heating pump go on or off as needed in response to the
temperature of rooms and water.
When you adjust the central controls, wait an hour or two for the
adjustment to ' ed in' - controls are deli erately made to react
slowly to prevent rapid on-off-on-off cycling.
EMPTYING ASHES. If you're urning only wood, ash need only e
emptied once it egins to overflow.
On the Multifuel model, using mineral fuels like anthracite, coal or
manufactured smokeless fuels, the ash must e removed efore it
uilds up to touch the underside of the grates, or it will severely
damage them. To empty the ash on multi-fuel models agitate the
fire ed y using the tool to operate the riddling mechanism on the
right-hand side. Use the ashpan tool to lift out the ashpan.
Remem er to let ash cool efore disposing in plastic sacks or
dust ins.
EXTENDED URNING Allow the fire to urn down to a low, hot
fire ed. Empty the ash, fully fill with hard fuel such as anthracite
and your stove can urn for up to twelve hours without attention.
KEEPING THE WINDOW CLEAN. Reduce the risk of staining y
using only very dry fuel. Severe stains can e removed when cold
with a domestic leach cleaner. DO NOT use proprietary solvent-
ased stove window cleaners. The window is not glass ut a
transparent ceramic, it may develop tiny hairline cracks, these are
harmless, and a characteristic of the toughest and material known.
OPENING THE DOOR This stove is designed to e operated only
with the door closed. Open the door very slowly to minimise fume
emission and prevent hot fuel falling out.
SUMMER SHUT DOWN: Before a long period of non-use, empty
fuel and ash and leave all the air controls open to allow ventilation
to reduce condensation.
FUELS
The Multifuel Morso DB15 is one of very few stoves which can
urn almost any solid fuel. The PureWood models can only urn
wood products such as logs or wood riquettes, with extraordinary
cleanliness and efficiency.
There is no 'perfect' fuel, so we strongly recommend that you try a
selection of fuels (or mixtures) to find which suits you est. Do
avoid dusty materials like sawdust, they can urn far to violently.
SMOKE CONTROL: In certain
areas special rules apply to
reduce smoke nuisance. Check
with your local authority.
WOOD only emits as much
car on to the atmosphere as the
tree took in when growing, so wood is considered the 'car on
neutral' fuel. When wood is cut down its cells are full of water.
Burning such wet or 'green' wood wastes heat in making steam
and produces flamma le, acidic tars which will cling to, and rapidly
damage, your stove and chimney. Split logs will typically take two
years to ecome reasona ly dry, round logs very much longer.
Cracks in the ends, a hollow sound when tapped and ark falling
away are all signs that a log may e ready for use. The fine, white
residue produced when wood urns is not ash, ut the remains of
cell walls which can urn if kept hot enough, so don't de-ash the
fire until a solutely necessary when using wood.
For est performance, and al ays for low smoke emission:
●Split logs lengthways for drying
●Use logs no igger than a out 100mm x 250mm
●Ensure logs are a solutely dry (less than 20% moisture)
●Fill the stove loosely, so air can circulate etween logs.
●Fill 'little and often'
●When first lighting, or reviving a fire from em ers, use only very
small, thin, dry, sticks.
●Keep a constant, deep, ed of charcoal and wood ash eneath
the urning logs. This may need several firings to uild up.
JOINERY WASTE Dry wood offcuts will urn well, ut don't expect
softwood waste to urn as cleanly or for as long as hardwood logs.
PEAT: Sod turf must e thoroughly dry.
LIGNITE or ROWN COAL is a natural mineral, etween peat
and coal. It lights easily and urns well, ut produces much ash.
ITUMINOUS COAL (Sold as 'Housecoal' or 'Polish') (does
NOT urn smokelessly, and is not permitted in smoke control
areas of the UK and RoI) is raw, natural coal containing a high
proportion of itumen. The DB15 is one of very few stoves which
can urn this fuel with high efficiency. But e aware that It makes
lots of tarry smoke and large volumes of flamma le gas which can
sometimes make it difficult to control.
ANTHRACITE is a natural hard, shiny form of coal. Slow to light, it
can urn for very long periods with great heat. Despite its high
price-per- ag it generally works out to e one of the cheapest of all
fuels. Use the 'small nuts' size.
COKE is coal from which the smoke has een removed.
Sometimes difficult to light, it urns very cleanly.
RIQUETTES Are compressed locks of fuel, generally a le to
urn for long periods and remarka le for their consistency.
'Homefire' and 'Phurnacite' are smokeless types while other
rands are made from lignite, peat or housecoal.
PETROLEUM COKE sold as 'Petcoke', 'Long each' and other
names, is an industrial reagent made from oil sometimes simply
sold as 'smokeless fuel' without any rand designation and
identifia le y a structure of tiny cohered eads. Although the
DB15 can urn this fuel safely, it WILL rapidly degrade interior
parts.
HOUSEHOLD WASTES Some plastics give off toxic fumes when
urned and remem er that atteries and aerosols explode! The
stove is not an incinerator, so only ever use the recommended
fuels and NEVER use liquid fuels in any form.
PRO LEMS?
Pro lems like those listed here are usually due to some difficulty
with the installation, chimney or fuels, so please check ack
3
Use radiator or
room thermostats to
control the system,
not the controls on
the stove

through this leaflet carefully. If necessary seek specialist advice.
SMOKE FROM THE CHIMNEY It is quite normal for a little smoke
to e emitted from the chimney, especially when the fire is cold.
Use only VERY dry wood or smokeless fuels. Is the chimney high
enough and hot enough to generate the necessary 12Pa draught?
POOR HEAT OUTPUT: This appliance is very easily capa le of
producing the quoted heat outputs given suita le fuels and a
chimney capa le of developing sufficient draught. Is the chimney
too short or ecoming cool or damp? Is the fuel completely dry?
Have the central controls een set correctly? Is the uilding
sufficiently well insulated?
CONDENSATION onto cool surfaces inside the stove can e
severe if fuel is in any way damp. Use only very dry fuel. It is vital
that the heating circuit is fitted with a device, such as a low-limit
thermostat, to minimise cold water circulating through the oiler.
SMOKE COMING INTO ROOM A little smoke leaking into the
room during refuelling is normal, ut fumes are poisonous and
recurrent smoke emission must NEVER e tolerated, causes
might e:
NEW STOVE: There is often a smell and sometimes visi le fumes
as the paint cures. This normally stops after an hour or so.
INADEQUATE SEALS: Are all flue pipes and connectors
absolutely gas-tight? Even the tiniest crack or gap can spoil the
draught. Does an inset appliances fully seal against the fireplace?
BLOCKED FLUEWAYS: Has soot and ash collected a ove the
inner ack part of the fire ox?
UNSUITABLE, BLOCKED OR UN-SWEPT CHIMNEY: The first
requirement for correct operation is a sound chimney. Check the
requirements earlier in this document and in any case of dou t
engage a professional sweep or chimney engineer.
POOR AIR SUPPLY: Lack of air to the fire is a common cause of
smoking and poor performance. Air supply pro lems may e
worse in certain wind conditions (often incorrectly ascri ed to
'downdraught', which is in fact very rare), where air can e sucked
out of the room. The answer is to fit an air vent, as near to the fire
as possi le, facing into the usual wind direction.
DOWNDRAUGHT: Wind can low do n a chimney if there is
something higher near y such as a tree, hill or high uilding.
Fitting an anti-downdraught cowl to the chimney top can cure this.
Types which cannot e swept through are not recommended.
POOR CHIMNEY DRAUGHT- Chimney draught in use MUST e
at least 12Pa.
CHIMNEY FIRE: In the rare event of deposits inside the chimney
igniting (roaring sound + dense smoke and sparks from the
chimney) immediately close the door, shut all air controls and call
the fire rigade. Prevent fires y using very dry fuel and having
your chimney swept regularly.
MAINTENANCE
MONTHLY- Open the fire door and inspect the top flue passages.
Gain access for cleaning y using the tool to lift off the lid (B on the
diagram).
ANNUALLY- SWEEP THE CHIMNEY The entire length of the
chimney from stove to outlet should e swept annually, more often
if smoky fuels are used.
NEW PARTS Your stove has een extensively tested for safety -
please don't try to modify it and always o tain genuine spare parts.
SURFACE FINISH Wipe the stove ody with a slightly damp cloth
when cool. NEVER use aerosol spray or wax near the hot fire –
they can ignite. Painted steel parts can e refur ished using
special spray paint.
Your stove generates VERY high temperatures. Eventually the
internal parts will require replacement . Help parts to last y:
●Using only recommend, very dry, fuels.
●Emptying the ash very regularly when using mineral fuel -never
allow it to touch the underside of the grate.
●Cleaning the flueways regularly.
●Avoiding 'over-firing'
PARTS AND ACCESSORIES
Standard Spare Parts for Morso DB15 Central Heating Stove
aWindow MOR0029
bFront fire ar MOR0030
cRiddling ar MOR0031
dThermostat assem ly MOR0032
eRoof rick, pair, with seals MOR0033
fSide Brick, pair, with seals MOR0034
gMid Brick, with seals MOR0035
hCast Chrome grate ar, upper MOR0036
kCast Chrome grate ar, lower MOR0037
mAshpan MOR0038
nAsh deflector plate and racket MOR0043
pThroat plate support MOR0044
qOperating tool MOR0040
Touch-up paint MOR0039
Rope Seal kit MOR0041
Mineral fi re seals etween ricks MOR0042
uStainless Alloy grate, end pieces MOR0036SS
vStainless Alloy grate, centre pieces MOR0037SS
wWood grate, end pieces MOR0036PW
xWood grate, centre pieces MOR0037PW
Standard stainless alloy grate - for all fuels Optional cast chrome grate for all fuels, including
corrosive fuels
Wood-only grate. Deeper capacity and ash
retention for sustained wood urning
Multifuel stove models can have any all-fuels or wood-only grate set fitted. PureWood stove models can only have the Wood-only grate
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These stove designs are registered at the UK Patent Office, Design No 4030575 and others, and are protected y Copyright © and UK Design Right, Glyn Hughes 2006-2013.
Certain parts are UK Patent Applied For. This document printed 22/07/2014. We are always striving to improve these products and may change their specification without notice.