Coalbrookdale Much Wenlock Stove, Much Wenlock Operating Instructions Manual

The appliance user should check with their installer that the
chimney has been examined and confirmed for soundness,
the chimney has been swept prior to the stove installation
and is free of any obstructions.

This appliance has obtained approval of HETAS LTD for
burning smokeless fuels only, and may be used for any of
the following:

1. Space heating and combined domestic hot water supply
and radiators.

2. Space heating and heating of pipes and radiators only.

The HETAS LTD. appliance approval only covers use of
smokeless fuels in this appliance. It does not cover use of
other fuels either alone or mixed with smokeless fuels, nor
does it cover instructions for use of other fuels.

10/00 EOPI 33732

Operating Instructions
for Freestanding
Much Wenlock Stove
with Boiler

Consumer Protection Act 1987

As manufacturers and suppliers of cooking and heating products, in
compliance with Section 10 of the Consumer Protection Act 1987,
we take every care to ensure as far as is reasonably practicable, that
these products are so designed and constructed as to meet the
general safety requirement when properly used and installed. To this
end, our products are thoroughly tested and examined before
despatch.

IMPORTANT NOTICE: Any alteration that is not approved by Aga-Rayburn,

could invalidate the approval of the appliance, operation of the warranty and
could also affect your statutory rights.

Control of Substances - Health and Safety
Important

This appliance may contain some of the materials that are indicated
below. It is the Users/Installers responsibility to ensure that the
necessary personal protective clothing is worn when

handling, where applicable, the pertinent parts that contain any of
the listed materials that could be interpreted as being injurious to
health and safety, see below for information.

Firebricks, Fuel beds, Artificial Fuels - when handling use
disposable gloves.

Fire Cement - when handling use disposable gloves.

Glues and Sealants - exercise caution - if these are still in liquid

form use face-mask and disposable gloves.

Glass Yarn, Mineral Wool, Insulation Pads, Ceramic Fibre,
Kerosene Oil - may be harmful if inhaled, may be irritating to skin,

eyes nose and throat. When handling avoid inhaling and contact with
skin or eyes. Use disposable gloves, face-masks and eye protection.
After handling wash hands and other exposed parts. When disposing
of the product, reduce dust with water spray, ensure that parts are
securely wrapped.

THE MUCH
WENLOCK

WARNING

BOILER MODEL

UNDER NO CIRCUMSTANCES MUST THE

APPLIANCE BE FIRED DRY AS DAMAGE

WILL OCCUR

Smokeless
Manufactured Natural
“Phurnacite Plus” Anthracite Large Nuts
“Centurion” Welsh Dry Steam Coal
“Coalite” Nuts (Large Nuts)
“Maxibrite”
“Phurnacite”
“Sunbrite” Doubles
“Extracite”
“Blazebrite”
“Taybrite”

PETROLEUM COKE MUST NOT BE USED.

NOTE: Pureheat fuel must not be used with this
appliance.

In addition to smokeless fuels the following fuels may be
used only outside smoke control areas:

Selected bituminous household (trebles/large nuts or
double nuts), wood logs and peat blocks. These fuels
produce soot and should not be used if the appliance is
used continually at a low setting.

NOTE: MOST TYPES OF LOGS AND PEAT BLOCKS MAY
BE USED PROVIDING THEY HAVE BEEN DRIED AND
ARE WELL SEASONED. IDEALLY SOFT WOODS
SHOULD BE BURNED IN THE DAYTIME AND
HARDWOOD OVERNIGHT.

WARNING: WET WOOD SHOULD NOT BE USED AS
CREOSOTE AND TAR-LIKE DEPOSITS FROM THE
WOOD ARE INCREASED TO A LEVEL WHICH CAN GIVE
RISE TO ADVERSE OPERATING CONDITIONS. FUELS
SHOULD BE STORED UNDER COVER.

NOTE: REFER PROBLEMS ABOUT FUEL SUITABILITY
OR QUALITY TO FUEL SUPPLIER.

NOTE: IT IS IMPORTANT THAT THE FUELS SHOULD BE
OF THE CORRECT SIZE OTHERWISE THE APPLIANCE
WILL NOT GIVE A SATISFACTORY PERFORMANCE.

WARNING: DO NOT FIX AN EXTRACTOR FAN IN THE
SAME ROOM AS THE APPLIANCE.

Sticks and Paper

a. Open the firedoor, Fig. 1.
b. Lay a liberal supply of wood/paper on the grate

together with a small quantity of fuel and light the
paper. Alternatively, place three firelighters equally
spaced across the grate. Cover with fuel and light.

c. Close and lock firedoor. See Fig. 1 and set the ashpit

door spinwheel eight turns open. Fig. 2.

d. With fire established open the firedoor, fill firebox up

to the top of the front firebar and sloping upwards to
the back.

e. Close and lock firedoor, Fig. 1 with the operating tool.
f. Adjust the ashpit door spinwheel, Fig. 2 to give the

desired rating of burning.

g. Replace operating tool on its support cradle when not

in use. See Fig. 5.

RECOMMENDED FUELS

TO LIGHT THE FIRE

2

Maximum burning rate is obtained with the ashpit door
spinwheel set at eight turns open. Minimum burning rate is
half turn open. Adjust as required to suit the fuel and the
heating desired.

A fully fuelled fire will last four hours (when burning solid
fuel) at the maximum recommended burning rate before re­fuelling is required. Avoid clinker formation which indicates
overfiring and always check that the firedoor is locked.

WARNING: FAILURE TO KEEP THE ASHPIT DOOR
CLOSED, CAN RESULT IN OVERHEATING, AND IN
EXTREME CONDITIONS RESULT IN DAMAGE TO THE
STOVE.

Overnight Banking and Daytime Slow Burning

De-ash thoroughly before re-fuelling and ensure there is a
sufficient amount of hot fuel in the firebed before loading.

Fuel fire up to the top of the front firebar sloping the firebed
upwards to the back of the firebox.

Set the ashpit door spinwheel to half turn open.

Experience will indicate the setting that provides the best
results with the fuel being burnt.

NOTE: DIFFICULTY IN OBTAINING BANKING CAN
SOMETIMES BE OVERCOME BY THE USE OF SMALLER
SIZE FUEL e.g. SUNBRITE SINGLES.

The supply of hot water is dependent on the rate of burning
and is greatest with the ashpit door spinwheel set at eight
turns open, and at least when the spinwheel is set at half
turn open.

The boiler is designed to heat radiators as well as supply
domestic hot water. Fuel consumption will be higher when
heating radiators and these should be turned off when not
required.

a. Riddle the bottomgrate by engaging the operating tool in

the right hand side square socket shaft, Fig. 3, and
rotate/reverse it sharply for about 10 strokes by which
time the fire should be free of ash. Riddle the grate at
least twice daily (more than if required) and always
before re-fuelling.

b. Open the locked ashpit door with the operating tool, Fig.

1.

c. Remove the ashpan with the operating tool, Fig. 4.

Allow to cool before placing contents in a plastic bin or
liner.

NOTE: EMPTY THE ASHPAN AT REGULAR INTERVALS
AND DO NOT ALLOW ASH TO ACCUMULATE IN THE
ASHPAN UNTIL IT TOUCHES THE UNDERSIDE OF THE
BOTTOMGRATE AS THIS WILL SOON DESTROY THE
BOTTOMGRATE.
THE CONTINUED PRESENCE OF SHALE, STONE OR
CLINKER IN THE FIREBED WILL REDUCE BURNING

3

TO REGULATE BURNING

WATER HEATING

DE-ASHING AND ASH REMOVAL

4

RATES.
TO REMOVE SHALE OR STONE FROM THE FIREBED,
OPEN THE FIREDOOR AND RAKE THE FIRE UPWARDS
WITH A POKER TO BRING THE SHALE OR STONE TO
THE TOP AND REMOVE WITH TONGS.

THE TYPE OF FUEL AND THE ASHPIT DOOR SPINWHEEL
SETTING, GOVERN THE FREQUENCY OF FUELLING.

WARNING: PROPERLY INSTALLED AND OPERATED THIS
APPLIANCE WILL NOT EMIT FUMES.

OCCASIONAL FUMES FROM DE-ASHING AND
REFUELLING MAY OCCUR, PERSISTENT FUME
EMISSION IS POTENTIALLY DANGEROUS AND MUST
NOT BE TOLERATED.

IF FUME EMISSION DOES PERSIST. THEN THE
FOLLOWING IMMEDIATE ACTIONS SHOULD BE TAKEN.

a. Open doors and windows to ventilate room.
b. Let the fire out or eject and safely dispose of fuel from

the appliance.

c. Check for flue or chimney blockage, and clean if

required.

d. Do not attempt to re-light the fire until cause of fuel has

been identified, if necessary seek professional advice.

WARNING: ALLOW THE APPLIANCE TO THOROUGHLY
COOL BEFORE CARRYING OUT THE FOLLOWING.

The top and rear of the boiler flueways, together with the
flue pipe outlet should be swept on a monthly basis to
prevent fly-ash deposits restricting the flueway and prevent
fume emission and reduced burning rates.

a. Open the firedoor, remove front firebar and prepare to

remove the boiler cleaning plug located at the centre
rear of firebox, in front of boiler face.

Clear any deposits around the plug with a scraper, then
use a hammer and a piece of hard wood, to tap the plug
in an anti-clockwise direction (marked OPEN), for about
a quarter turn.

The plug should then be loose and easy to withdraw by
hand. This gives access to the rear boiler access hole
and boiler flueways.

b (i) Top Flue Outlet

Remove the access door incorporated in the flue pipe
(above the appliance). Insert provided flexible flue brush
through appliance front and flue pipe access door to
clean top of boiler flueway, Fig. 6.

Access to rear boiler flueway with flexible flue brush is
made through the firedoor opening and rear boiler
access hole. Fig. 7.

Brush deposits into firebox and replace flue pipe access
door.

(ii) Back Flue Outlet
Remove the flue blanking plate on top of the stove.

FUME EMISSION

APPLIANCE CLEANING

5

Insert provided flexible brush through the appliance
front and blanking plate to clean top of boiler flueway.
Fig. 8.

Access to rear boiler flueway with flexible flue brush is
made through the firedoor opening and rear boiler
access hole. Fig. 9.

Brush deposits into firebox and replace flue blanking
plate.

c. Replace boiler plug by inserting plug so that the locking

lugs on the plug pass through the corresponding slots in
boiler back. Figs. 7 and 9.

Turn plug one quarter turn in a clockwise direction
(marked CLOSED) to lock.

d. Replace front firebar and close firedoor.

CHIMNEY SWEEPING: SWEEP AT LEAST ONCE
ANNUALLY. See Figs. 10a and 10b.

WARNING: NEGLECT OF CHIMNEY SWEEPING CAN
LEAD TO DANGEROUS FUME EMISSION.

Use wire centred sweep brushes fitted with a guide-wheel
for most efficient chimney sweeping.

Where the chimney is believed to have served an open fire
installation, it is possible that the higher flue gas
temperatures from a closed appliance may loosen deposits
that were previously firmly adhered, with the consequent
risk of flue blockage. It is therefore recommended that the
chimney be swept a second time after one month of
regular use.

Top Flue Only

The chimney can only be swept via the removal of the flue
pipe access door (above the appliance).

Back Flue Only in Recess

The chimney is swept through the rear elbow cleaning door
and the soot can be removed through the appliance.

a. Open the firedoor and remove the front firebar and

bottomgrate bars.

b. Remove the boiler cleaning plug (as described under

Appliance Cleaning) and using a flexible flue brush of
adequate length, clean the vertical flue pipe via the rear
boiler access hole.

c. Insert the chimney sweeping brush into the main flue or

chimney, through the soot cleaning door entry, or the
flue pipe or through the appliances as applicable.

Ensure the deposits are separately collected, or fall into
the firebox for removal.

d. Replace the removed components in the reverse

procedure of removal.

NOTE: ALWAYS CLEAN THE APPLIANCE OUTLETS AND
FLUEWAYS AFTER SWEEPING THE CHIMNEY AND FLUE
PIPE.

Use a damp sponge or a proprietary brand of stove cleaner
to clean exterior of stove.

WARNING: DO NOT CLEAN THE STOVE WHEN HOT.
With use, the inside face of the glass door may become

coated with dust and deposits. To clean the glass, allow it
to cool and then wipe with a damp cloth and polish with a
dry one

1. Always use a qualified service engineer when service
is required.

2. An inspection of both firedoor and ashpit door seals
should be made every heating season and replaced if
necessary.

When not in use remove all fuel and ashes from the
firebox. Leave the ashpit door spinwheel at an open
setting to allow a constant stream of air to pass through
the stove.

If the fire is not used when there is a danger of frost the
whole system should be drained.

WARNING: NEVER LIGHT THE FIRE IF THE WATER
SYSTEM IS FROZEN.

CLEANING

SERVICING

PRECAUTIONS

6

FIREGUARD

SPARE PARTS

Part No

HS5M-MW209

HS5B-MW212

HS5B-MW213

HS1M-90295

HSFM-37539

JTHR-20389

JTHR-26389

Description

Front firebar

Bottomgrate (upper)

Bottomgrate (lower)

Ashpan

Firedoor Glass Panel

Firedoor Rope Seal
(980mm length)

Ashpit Door Rope Seal
(840mm length)

No. Req.

6

1

1

1

1

1

7

1-Set

7

8

For further advice or information contact

your local distributor/stockist

With Aga-Rayburn’s policy of continuous product
improvement, the Company reserves the right to
change specifications and make modifications to
the appliance described and illustrated at any tim

Manufactured By

Aga-Rayburn
Station Road

Ketley Telford

Shropshire TF1 5AQ

www.aga-rayburn.co.uk

www.agacookshop.co.uk