Aarrow Fires Acorn 4 User Manual

Aarrow Fires Ltd
The Fireworks
Bridport
Dorset, DT6 3BE
Great Britain

Tel. [phone]
Fax. [phone]
www.aarrowfires.com

Acorn

Multifuel Stoves

Operating & Installation Manual

PLEASE RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE

The Acorn 4 Multifuel Stove (shown above)

Rev 2

Part No: AFS1126

March 2004

Congratulations on your choice of an Aarrow Stove.

More than 20 years experience has been put into the development of

our Acorn Multifuel to ensure ultimate performance and years of

trouble free enjoyment.

Every detail on the fire has been carefully engineered and designed

which is why we are so confident in the reliability of our product

that we offer a 3 year guarantee.

Should you have any questions about our Acorn Stoves that are not

covered in this manual, please contact the Aarrow dealer in your

area, or call our Technical support department on

01308 427234

© COPYRIGHT 2004

Aarrow Fires Ltd
This booklet has copyright & may not be
copied in whole or part or be used for any
purpose other than that for which it is
supplied without express written consent
from Aarrow Fires Ltd.

INTRODUCTION Page

Safety Notices 5

The Principle of the Fire 5

Check List 6

Technical Data 7

INSTALLATION Page

General Precautions 8

Handling 8

Hearth 8

Combustible Materials 8

Air For Combustion 8

Firebox Liner Panels 9

Removal of the Throat Plate 9

Fitting the Optional Floor Fixing Kit 9

Assembling the Multifuel Grate 10

Flues & Chimneys 11-14

Add in Boilers 15-16

OPERATING INSTRUCTIONS Page

AirInlet Controls 16-17

Airwash System 16-17

Multi-Purpose Operating Tool 17

Fire Door Glass 17-18

Adjusting the Door Hinges 18

Fuel Types 18-19

Lighting the Fire 19

Extended Burning 19-20

De-Ashing 20

Over-Firing 20

Cleaning & Annual Maintenance 21

Final Check List 22

Parts List 23-25

GUARANTEE

Guarantee 26

Customer Registration 26

SERVICE RECORD

Service Record 27

Final Factory Check List 28

3

CONTENTS

WARNING

TO ALL MULTIFUEL USERS

PETROLEUM COKE

SOME OF WHOSE BRAND NAMES ARE

"CALCO", "PETROCOKE" OR "WONDERCO"

MUST NOT BE BURNED IN THIS APPLIANCE

TO USE THESE FUELS WILL INVALIDATE THE

APPLIANCE GUARANTEE

IF IN DOUBT CONTACT THE SOLID FUEL ASSOCIATION

TELEPHONE NUMBER 0800 600 000

www.solidfuel.co.uk

THE USE OF SPARE PARTS OTHER THAN THOSE SUPPLIED

BY AARROW FIRES LTD WILL INVALIDATE THE

APPLIANCE GUARANTEE.

4 Acorn Multifuel Stoves

Acorn Multifuel Stoves 5

INTRODUCTION

SAFETY

A fireguard conforming to BS 8423: 2002 should
be used in the presence of children and old/or
infirm people. If the appliance is used with the fire
door open, a spark guard conforming to BS 3248
should be fitted.

Do not use aerosol sprays or any other flame
near the appliance under fire.
Do not fit an extractor fan in the same room as
the appliance.
Fire cement is caustic, hand and eye protection
should always be worn, prolonged contact with
the skin should be avoided.
Aarrow Fires Ltd will not be responsible for any
consequential or incidental loss or injury
however caused.

Before continuing any further with the installation
of this appliance please read the following guide to
manual handling.

• Always obtain assistance when lifting the
appliance.

• When lifting always keep your back
straight. Bend your legs not your back.

• Avoid twisting at the waist. It is better to
reposition your feet.

• Avoid upper body/top heavy bending. Do not lean
forwards or sideways when handling the fire.

• Always grip with the palms of your hands.
Do not use fingertips for support.

• Always keep the stove as close to the body as
possible. This will minimise the cantilever
action.

• Use gloves to provide additional grip.

THE PRINCIPLE OF THE FIRE

Your Aarrow Fire is built to the highest standard of
craftsmanship using the best materials and the most
modern equipment available. It is a highly efficient
and sophisticated piece of machinery and when
properly installed and operated it should provide a
lifetime of heating satisfaction.

Safety is the most important consideration when
installing your fire. If not properly installed and
operated a house fire may result. installation must
comply with the Building Regulations and conform
to all relevant fire safety standards.

Aarrow Fires produce a variety of appliances
ranging from units, which are traditional in style to
stoves which are modern in appearance, all
bristling with "High Tech" features.

Model types include simple room heaters,
convectors, integral boiler models and inset units.
Your Aarrow Fire is constructed from either single
or twin wall steel strengthened where necessary.
Cast iron is used where appropriate for decorative
features.

All fire doors are fitted with special high
temperature ceramic glass panels through which
the fire can be viewed.

Multifuel stoves are fitted with a cast iron grate to
give full multifuel facility and positive de-ashing.

All models except integral boiler models are lined
with firebricks or heat reflective panels which
ensure complete combustion and provide a good
heat store to even out fluctuations in burning.

An internal throat plate produces turbulence to
encourage secondary combustion and directs the
flue gas around the whole upper firebox before
allowing it to escape up the chimney.

On multifuel appliances the primary air for burning
enters the ash pit chamber beneath the grate,
controlled by the air inlet mechanism.

Aarrow Fires are also fitted with an "air wash" so
called because it provides a curtain of high speed
preheated air behind the glass to help keep it clean
and to provide secondary air/over draught.

The provision of two inlets on all multifuel stoves
gives a wide range of primary air/secondary air,
under draught/over draught combinations.
The optimum settings will only be established by
experience in firing the appliance, and will depend
on type of fuel, the position of the appliance in the
house, condition of chimney etc.

Inside the appliance you should find the following:

6 Acorn Multifuel Stoves

CHECK LIST

Part Description & Visual Aid

(not to scale)

Acorn 4 Multifuel

Quanity Part No.

1. Grate bars
5

2. Integral

front brace/
reatainer

1

3. Throat

plate

1

4. Flue

spigot

1(4”)

5. Hot plate

1(4”)

6. Ash pan
1

7.Operating

tool

1

8. Rear

liners

1

9. Side liners
2

10. Fire door

handle

1

11. Instructions
1

The model and Serial Number of your fire can be found stamped into the casing,
centrally just below the bottom edge of the fire door aperture.

Acorn 5 Multifuel

Quantity Part No.

5

1

1

1(4”)

1(4”)

1

1

1

2

1

1

AFS001

AFS1101

AFS1086

AFS064

AFS1094

AFS008

AFS1141

AFS009A

AFS1092

AFS205

AFS1126

AFS001

AFS1101

AFS1018

AFS064

AFS1059

AFS008

AFS1141

AFS009A

AFS1058

AFS205

AFS1126

Acorn Multifuel Stoves 7

TECHNICAL DATA

Room Min/Max
Room Heater Only Output (kW)

1- 4.5

TECHNICAL DATA Acorn 4

Multifuel

Room Heater with Domestic Hot
Water with add in boiler type

Type 7

Max Output to Room (kW)

Max Output to Water (kW)

3

1.5

Height (mm) 458

Width (mm) 355

Depth (mm) 350

Height to Centre of Rear Flue 360

Depth from Back to Centre of Flue 90

Flue Diameter (mm) 102 (4”)

Weight Unpacked

Packed

43 Kg
46 Kg

Acorn 5

Multifuel

1 - 5

Type 0

3

2

483

395

350

387.5

96

102 (4”)

44 Kg
47 Kg

8 Acorn Multifuel Stoves

INSTALLATION

GENERAL PRECAUTIONS

Note - All installations must conform to the
appropriate building regulations.

The Building Regulations for England and Wales
2000 ref Approved Document J 2002 edition
(issued by the DTLR).
The Building Standards (Scotland) (Consolidation)
Regulations.
Detailed recommendations for installation of
appliances, chimneys and flues are outlined in the
current issue of the following British Standards:­BS6461, BS8303 and BS4543.

Any Manufacturer's Instructions must not be
taken as overriding statutory requirements.

During installation ensure that adequate
precautions are taken to avoid unnecessary risk to
yourself or any householder. In particular the
danger from the caustic nature of the fire cement
should be avoided by using these accepted
methods:

•Wear gloves when handling fire cement.

•Wear goggles when chiselling or looking up
chimneys.

Make sure that Building Regulations are adhered to
during installation along with any local by-laws.
In the case of heating systems make sure that the
pipe work is correctly bonded to ensure electrical
earthing.

HANDLING

By the time you read this you will appreciate the
weight of the appliance. The Safety and handling
guidelines as set out on page 5 of this manual
should be followed.

To make movement easier internal fittings, grates,
firebox liners, flue outlets, hot plate, throat plate,
etc., can be removed.

Care should be taken to make sure that the hinges
are not damaged during installation.

HEARTH

The fire should be installed to stand on a
constructional hearth of non-combustible materials
not less than 125mm (5'') thick conforming to
Building Regulations. Dimensions of the hearth
should project at least 300mm (12'') forward of the
front of the appliance and 150mm (6'') at the sides.
The surface of the hearth should be free of
combustible materials. In most buildings with solid
concrete floors the requirement will be met by the
floor itself, but mark the perimeter of the hearth to
ensure floor coverings are kept well away or use
different levels to mark the hearth perimeter.

COMBUSTIBLE MATERIALS

A gap of at least 450mm (18'') should be allowed
between the appliance and any combustible
materials including furnishings. Adjacent walls
should be of suitable non-combustible
construction, preferably brickwork. In large
fireplaces take care that any supporting beam is
protected by a 13mm (0.5'') sheet of
Masterboard/Supalux spaced 13mm (0.5'') off the
surface with strips of non-combustible material

- not wood.

Make sure that there is a gap between an
uninsulated flue system and any combustible
material. This gap must be at least 3 x the outside
diameter of the flue pipe, or 1.5 x the flue diameter
to non combustible surfaces. See the illustration on
page 14.

AIR FOR COMBUSTION

There must always be a permanent means of
providing air for combustion into the room in
which the fire is installed. A permanent vent with a
total free area of at least 550mm2for every kW
rated output above 5kw should be connected
directly to the outside air or to an adjacent room
which itself has a permanent vent of the same size
direct to the outside air. The fitting of an extractor
fan to either of these rooms is not recommended.

FIREBOX LINER PANELS

The Acorn Multifuel stoves have reflective liners to
the sides and back. The throat plate sits on top of
the side and rear panels. These should come fitted
to your fire, if however they are not proceed as
follows to fit them.

•Remove the front brace retainer.

•Set the small liner into the back of the fire.

•Insert side liner panels

•Fit the throat plate with the single bend and two
cut outs to the front facing up. The projecting lugs
sit on top of the side liners. The long centre tab on
the back edge rests on the rear liners. The shorter
turn-down tabs against the vertical face.

•Replace the front brace retainer.

Note: Neither the rear firebox liners nor the side
firebox liners are "handed", both faces are
suitable for direct contact with the fire.

Fig. 1 Liners inserted in Acorn

Fig. 2 Inserting throat plate

Fig. 3 Liners, throat plate and

grate in the Acorn.

REMOVAL OF THE THROAT PLATE

Blocked chimneys cause dangerous fumes to
escape. Remove the throat plate at least monthly to
clean. Keep chimney and flue ways clear.

FITTING THE OPTIONAL FLOOR
FIXING KIT

Once the stove is in the correct position it is
recommended that the fire is fixed to the floor for
safety purposes:

You will need a No. 2 pozi drive screw driver to
carry out this operation. Place the brackets each
side of the appliance.

Fig. 4 Lining up the bracket

Slide the small threaded hole underneath the gap
(as shown above) and turn inside so the both holes
match the pre-drilled one. Repeat for the other side.

Fig. 5 Inserting and tightening the screws.

When both are in place, tighten the screws until
they are firmly inserted.

Then proceed to drill your hearth and insert and
anchor bolt or similar fixing (Not supplied in kit)
and bolt down the brackets once the appliance is in
place. For further instructions please consult the
floor fixing instructions attached to the kit.

Acorn Multifuel Stoves 9

INSTALLATION