Page 1
Dovre 350 Cast Iron
Cleanburn Wood Stove
INSTALLATION INSTRUCTIONS
Page 2
32
INTRODUCTION TO
YOUR DOVRE STOVE Page 2
UNPACKING Page 3
GETTING THE BEST FROM YOUR STOVE Page 3
LOCATION FOR THE INSTALLATION Page 3
ASSEMBLY Page 4
INSTALLATION Page 4
CHIMNEY CONNECTIONS Page 4-5
THE CHIMNEY Page 5-6
OPERATING YOUR DOVRE STOVE Page 6
SERVICING & MAINTENANCE Page 6-7
GUIDE TO BURNING WOOD Page 7
TROUBLE-SHOOTING Page 7
WARRANTY DETAILS Page 7
Dovre 350 Cast Iron Cleanburn Wood Stove
Installation and Operating Manual
These instructions should be read
carefully and saved by the
user for future reference
We would like to thank you for purchasing a Dovre
stove and we trust that it will provide you with many
years of useful service.
At Dovre we have been producing cast iron stoves for
over 60 years and we strive to ensure that our products
meet with the highest level of performance, efficiency,
safety and quality. So much so that we guarantee all
Dovre body castings for 10 years.
Owning a stove might be a new experience for you.
Therefore, to ensure that you get the best performance
from your new Dovre, do please take a little time to read
through this manual.
The 350 CB is a specially designed stove for burning
wood with clean emissions. It is essential that when
wood is used, it is well seasoned for a minimum of 2
years and has maximum moisture content of 20%. If
unseasoned wood is used, heat outputs will not be
obtained and serious damage will occur in the chimney
and flueways.
The dimensions of your new stove are illustrated in fig.
1. Be careful to ensure that your fireplace is going to
accept the appliance and that you have allowed for at
least 225mm of hearth space in front of the stove.
WE DO RECOMMEND THAT WHEREVER POSSIBLE,
YOUR DOVRE IS FITTED BY AN EXPERIENCED
INSTALLER ACCUSTOMED TO THE INSTALLATION
OF CLASS 1 SOLID FUEL BURNING APPLIANCES.
If you are unsure about any aspect of the installation or
operation procedures, your Dovre dealer will be pleased
to help.
It is important that the Installation is carried out in
compliance with current Building Regulations.
Your Dovre 350 CB is constructed from high-grade quality cast
iron and is therefore not light in weight. We recommend that two
people are available to handle the unit.
Before taking your Dovre to its installation location, remove the
outer packing. Open the appliance door.
Remove the following components:
■ Ashpan
■ Fixings pack
■ Cast iron grate centre
■ Ash rake
■ Log guard (part no. 770210)
Check that the following parts are in the Fixings Pack.
■
1 Tub 400 gm Fire Cement
■
Cast Iron Flue Spigot (part number 003260)
■
1 Plain Blanking Plate (part number 153160)
■
1 steel blanking plate 180mm x 20mm retaining bar .
■
Cast iron ash pit cover (part no 054020)
■
4 Leg extensions (part number 522110)
■
Log Guard 77 020
■
Operating Tool (part number SLT5/01)
■
Pack containing over plate remover and instruction
sheet. (Part number 72301.0)
■
Miscellaneous fixing pack including fixing screws and
door handle
■
Quality control ticket (IMPORTANT TO RETAIN
TICKET IN CASE OF FUTURE CLAIMS)
Assemble the handle referring to fig.2 below
UNPACKING YOUR DOVRE 350CB
CONTENTS
DOVRE 350CB
FIG.1. STOVE DIMENSIONS FIG.3 SOOT DOOR LOCATIONFIG.2 HANDLE ASSEMBLY
INTRODUCTION TO YOUR NEW
GETTING THE BEST FROM YOUR DOVRE 250
There are 4 golden rules to follow:
USE GOOD FUEL - NEVER BURN UNSEASONED OR DAMP
WOOD
YOU MUST HAVE A GOOD CHIMNEY DRAUGHT - NEVER
USE YOUR DOVRE STOVE WITH A POOR CHIMNEY
AVOID OPERATING THE STOVE FOR LONG PERIODS ON
CONTINUOUS LOW TEMPERATURE
NEVER USE SOLID FUEL ON YOUR DOVRE 350CB
4
3
2
1
The location in which your stove is to be installed will of course
depend on the chimney available. If you do not have a chimney,
there are a number of prefabricated flue systems available and
your Dovre Dealer will be pleased to offer guidance on the subject.
Building Regulations must be observed when considering the
location of your Dovre. More precise information can be found
later in this manual but it is important to ensure that a suitable
hearth, complying with Building Regulations, is available.
NEVER ALLOW A MECHANICAL AIR EXTRACTOR TO BE USED
IN THE ROOM OR ADJOINING ROOMS AS THIS COULD CAUSE
THE APPLIANCE TO EMIT SMOKE INTO THE ROOM.
LOCATION FOR THE INSTALLATION
It is essential that an access point for cleaning the chimney
be incorporated in the installation. This can normally be
carried out by fitting an external soot door or access plate
in the flue pipe. Access for rear flue connections can be
made using a tee section soot trap at the base of the flue
pipe. See fig.3 below.
Your 350CB is equipped with a special top baffle plate
designed to direct pre-heated secondary combustion air. It
is essential that access be allowed for cleaning the topside
of the baffle.
IMPORTANT - FLUE CLEANING
REAR FLUE CONNECTION TOP FLUE CONNECTION
SOOT DOOR
SOOT DOOR
SOOT DOOR
435
350
580
685
465
150
Page 3
ACCESS FOR SWEEPING CHIMNEY
The chimney should be checked and swept at least once a year and
it is important to allow provision for gaining access to the
chimney. On masonry chimneys, a standard soot door, obtainable
from your Dovre dealer, can be used. On other factory made
chimneys, it is important to ensure an access-cleaning door is
provided. It is advisable to ensure that the connecting flue pipe to
the chimney has an access door fitted. An access door close to the
appliance will also facilitate the use of a chimney vacuum cleaner
to ensure clean appliance maintenance.
AIR SUPPLY
Your Dovre 350 CB requires an air supply to the room. The air
vent should have a minimum air flow area of 220 sq. CMS (4” sq.)
THE CHIMNEY
(Minimum height requirement 4.5 metres (16 ft.)
CHIMNEY DRAUGHT
DRAUGHT REQUIREMENT: 1.5 to 2mm
Too much draught will cause excessive heat outputs and fuel
consumption. Inadequate draught may cause smoke emission to
the room and poor combustion resulting in a build up of tar and
creosote deposits on the glass, inside walls of the appliance and the
chimney.
FOR EXISTING CHIMNEYS, always ensure that the chimney is
checked and swept prior to the installation taking place.
This is one of the most important aspects of the installation of your
Dovre stove. It is important to ensure the following.
MASONRY CHIMNEYS
The chimney must be sound, in good condition and must not be
shared with another appliance. In the event of the chimney being
unlined, it is advisable to have a survey carried out to check for the
presence of leakage and other defects. Lining the chimney with a
suitable liner for wood burning and solid fuel burning
applications, will improve the performance and efficiency of the
stove.
THE ADVANTAGES OF A LINED CHIMNEY
With most unlined chimneys, the cross section of the chimney is
excessive as in the case of large old inglenook fireplaces. Because
of the large volume of cold air in large chimneys, it is difficult for
the flue gases to rise easily through the chimney. This causes the
unburned volatiles in the smoke to adhere to the chimney walls.
The inner surfaces of some unlined chimneys are rough with
jagged edges causing difficulties in obtaining a good draught.
Unlined chimneys are often defective with cracks leaking fumes
into other parts of the house.
Larger, unlined chimneys, being cold, encourage the formation of
tars (wood smoke condensation), which can penetrate the walls of
the chimney leaving unpleasant black stains on internal plastered
walls.
PREFABRICATED CHIMNEY SYSTEMS
If a masonry chimney is not available, there are a number of
proprietary brand prefabricated flue systems available. Your Dovre
Dealer will be pleased to offer information and advise on this
subject.
54
The minimum thickness of hearth should be 125mm (5”) and this
may include the thickness of a concrete floor including hearth
tiles. If a hearth is constructed and / or supported on timber, the
timber should be at least 550 mm (10”) away from the top surface
of the hearth.
If a timber mantel is installed, the distance from the stove body
and / or any single skin flue pipe, if attached to the top of the
stove, to the mantel must be a minimum of 450mm (18”).
CONNECTION FROM THE TOP OF THE
APPLIANCE (See fig.5)
A non-combustible register plate should be fitted to the
lower section of the chimney.
125 mm (5”) diameter 316-grade 1mm thick stainless steel flue
pipe or vitreous enamel pipe suitable for use with solid fuel
appliances should be used to connect the top spigot of the stove to
the chimney or chimney liner. All connecting joints must be
female pointing up and joints should be properly sealed with fire
cement. If the chimney is not immediately above the stove, off set
bends of either 30 degree or 15 degree angles may be used. Try to
avoid long runs of pipe that are not vertical.
CONNECTION FROM THE REAR OF THE
APPLIANCE (See fig.6)
A non-combustible register plate should be fitted to the
lower section of the chimney.
125 mm (5”) diameter 316-grade 1mm thick stainless steel flue
pipe or vitreous enamel pipe suitable for use with solid fuel
appliances should be used to connect the rear spigot of the stove
to the chimney or chimney liner. All connecting joints must be
female pointing up and joints should be properly sealed with fire
cement. If the chimney is not immediately above the stove, off set
bends of either 30 degree or 15 degree angles may be used. Try to
avoid long runs of pipe that are not vertical. Start by connecting a
90-degree or 45 degree “T” section to the flue spigot at the rear of
the stove.
NEVER INSTALL HORIZONTAL PIPE RUNS OVER
150mm (6”) DIRECTLY OFF THE BACK OF THE STOVE
If the leg extensions are required to be fitted, carefully lay stove on
its back. It will be helpful to lay the stove on two wooden battens.
Remove the wooden pallet.
Fit the leg extension (part no 522110) sections using the large
black washers and hexagon headed 25mm x 8mm bolts. Using a
10mm spanner, tighten the bolts and adjust for height as
necessary.
FITTING THE FLUE CONNECTOR.
If your Dovre is to be connected to the chimney via the rear flue
connector, proceed as follows.
Remove the fixed circular flue cover plate on the rear of the stove
using the kit supplied (part no 72301.0)
Apply a thin and even coat of fire cement to the flange on the flue
spigot. Fix the flue spigot in position using the 2 threaded hook
bolts, nuts and washers and tighten using a 13mm spanner.
If your Dovre is to be connected to the chimney via the top flue
connector, proceed as follows.
Remove the fixed circular flue cover plate on the top of the stove
using the kit supplied (part no 72301.0)
Apply a thin and even coat of fire cement to the flange on the flue
spigot. Fix the flue spigot in position using the 2 threaded hook
bolts, nuts and washers and tighten using a 13mm spanner.
REFIT THE REAR HEAT SHIELD (IF REAR FLUE CONNECTION IS
USED IT WILL BE NECESSARY TO KNOCK OUT THE CUT OUT
FLUE SECTION ON THE HEAT SHIELD.
Cast iron ash pit cover (part no 054020)
Place the ash pan in position. Attach conical shaped knob to the
threaded rod located on the right hand side of the stove under the
ash lip.
Refit the log guard.
HEARTH & CLEARANCE REQUIREMENTS
INSTALLATION AGAINST A WALL
For installation as a free standing unit e.g. against a
wall. (See fig.4)
The minimum hearth required is 840mm (33”) x 840mm (33”)
and the unit must not be placed less than 125mm (5”) from the
back and sides of the hearth. The wall must be constructed from
non-combustible materials and must be a minimum height of
1200mm (48”). The required wall thickness will depend on the
distance between the back of the stove and the wall. If this
distance is less than 50mm (2”), the wall should be at least 200mm
(8”) thick. If the distance from the back of the stove to the wall is
between 50mm (2”) and 150mm (6”), the wall thickness must be
at least 75mm (3”) thick. If single wall flue pipe is attached to the
appliance, the pipe should be a minimum of three times its
diameter from any combustible materials.
INSTALLATION IN A FIREPLACE RECESS
For installation in an fireplace recess or inglenook the hearth must
extend 500mm (20”) in front of the recess and extend either side
of the recess by 150mm (6”)
The distance the hearth must protrude in front of the appliance
should be a minimum of 300mm (9”)
INSTALLATION
CHIMNEY CONNECTIONS
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150mm
A
840mm Minimum 840mm Minimum
300mm
B
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Y 3 x Y
combustible material
minimum
wall height
1200mm
FIG.4
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cleaning
access door
connection to an unlined chimney
connection to a lined chimney
non combustable
register plate
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cleaning
access door
debris space
min100mm wide
maximum
horizontal
pipe lenth
150mm
FIG.5
FIG.6
CORRECT
non combustible
register plate
ASSEMBLY
THE CHIMNEY
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existing
chimney
wall thicker
than 100mm
CORRECT INCORRECT
FIG.7
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76
TEN YEAR WARRANTY
If the castings on this appliance should prove to be defective within
ten years of the purchase date, the faulty castings will be replaced
free of charge, subject to the following conditions.
The purchaser shall complete the registration section
..........
herewith and return it within seven days of purchase.
..........
Failure to return the registration could result in delays in
..........
processing any claims.
The appliance shall have been installed in compliance with
the installation instructions.
The appliance shall not have been used for the burning of
unseasoned wood and/or prohibited fuels.
This warranty only applies to the appliance body castings
and does not include renewable components including
grates, ashpans, and glass, seals and baffle plates.
This warranty does not cover site visits and any claims
should be notified to your dealer.
This warranty does not affect the Statutory Rights of Consumer
Purchasers
Please complete and return this card within seven days
of purchase to:
Dovre Castings Ltd., Weston Works, Weston Lane,
Tyseley, Birmingham B11 3RP
Name: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Address:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Telephone Number: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Date of Purchase:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dealer:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
4
3
2
1
CHIMNEY TERMINAL
Down draught problems may be experienced if the top of the
chimney is close to adjacent taller trees and / or buildings. Your
Dovre Dealer will be pleased to advise on suitable anti
downdraught cowls should these conditions prevail.
CAUTION
IF THE APPLIANCE EMITS SMOKE INTO YOUR ROOM, IT IS
NOT THE FAULT OF THE APPLIANCE. THERE WILL EITHER
BE A STRUCTURAL FAULT OR DESIGN FAULT IN THE
CHIMNEY OR LACK OF VENTILATION IN THE ROOM.
REMOVING ASHES
Slide the centre grate grill to the open position. Using the rake
tool, slide some of the ashes to the centre grate allowing the ashes
to drop into the ash pan. It is not necessary to clear all the ash
from the grate area. A bed of ash up to 12mm deep can be left on
the grate area.
After replacing the empty ashpan in the ashpit compartment,
ensure the ashpit door is fully closed.
DAILY MAINTENANCE
■
Empty the ash pan
■
Check and clean light stains from the glass. Wipe the door glass
clean using a damp cloth and polish off with a paper towel or
clean cloth.
WEEKLY MAINTENANCE
■
The fibre door gaskets around the inside edge of the doors
provide an airtight seal. Check these regularly and remove any
ash or wood particles gently with a soft brush.
ANNUAL MAINTENANCE
At the end of the heating season, thoroughly clean the inside of
the stove and adjoining flue pipe.
Arrange for your chimney sweep to inspect and clean the
chimney.
Carry out the following checks:
■
Replace the door and glass gaskets
■
Check and replace any worn fire bricks as necessary
■
Check and replace the cast iron grate if necessary
■
Check, clean and replace the top baffle plate if necessary
STOVE BODY
To clean, use a soft brush. The stove body can be repainted or
touched up using Dovre high temperature resistant stove paint.
GLASS
You may notice a build up of deposits on your glass, particularly if
the stove has been used for long periods at low temperatures. A
hot brisk fire will normally cure this problem, but if the problem
persists, check the quality of your wood and / or chimney. It is
always recommended to fire your stove hard after an overnight
burn. From time to time, the glass can be cleaned using Dovre
CERACLEAN glass cleaner. Never use water or abrasive pads to
clean the glass especially whilst the glass is hot.
If you are buying wood from a log merchant, try to ensure that the
wood has been seasoned for at least 2 years. 3 years is even better.
The wood should preferably be cut to lengths of 40cms (13”) and
split to a width of between 5 and l5cms (2-6”).
Store your wood under cover to protect from rain but ideally the
wood should be stored in. a place where the wind will be allowed
to freely ventilate the stack.
Try to obtain hardwoods such as oak, elm, beech or ash. These
woods will provide more calorific value per cubic meter than
softwoods.
Provided that your Dovre stove has been installed in accordance
with the above installation procedures, you should now be ready
to “light up”
Your Dovre has been treated with a high temperature resistant
protective paint, which produces an odour when the stove is new.
We recommend that you leave a window open during the first few
hours of use while the paint is curing.
CONTROLLING YOUR DOVRE 350 CB
There are two fundamental air controls on your Dovre 350 CB, the
lower air control rod and the top lever air control
The top air control should be generally left in the fully open
position. If the top air control is left for long periods in the closed
position, the air wash system will not function and the glass will
quickly discolour. The lower air control should only be opened
when first lighting or re-fuelling with wood.
Choose well seasoned hardwood logs 35cms (13”) in length and
no greater than 75mm -150mm (3 to 6”) in diameter.
REMEMBER: THE DRYER THE WOOD THE BETTER
WET UNSEASONED WOOD PRODUCES
CREOSOTE AND TAR IN THE CHIMNEY AND
CAUSES RAPID BLACKENING OF THE GLASS
DOOR.
To light your DOVRE 350 CB:
■
Pull open the lower air control knob.
■
Open the top air vent fully by sliding the lever to the left.
■
Ensure that the ash grate grill is in the closed position by sliding
to the right.
■
Lay rolled up newspapers and small sections of wood (kindling
wood) on the base of the stove. Light the paper with a long
taper. If kindling wood is not available, firelighters may be used
with small pieces of split wood laid on top of the firelighters.
■
Close the door but do not fully lock at this stage. The fire should
now start to burn fiercely and brightly. If this does not happen,
check for chimney blockage.
■
As soon as the wood is burning with a well-established heat,
add 2 or 3 logs and close the door tightly.
■
After a further couple of minutes fully close the lower air
control.
REMEMBER
OPERATE YOUR DOVRE WITH THE BOTTOM AIR CONTROL
CLOSED
CONTROL THE BURNING RATE BY ADJUSTING THE TOP AIR
CONTROL
OVERNIGHT BURNING
Before retiring to bed:
■
Ensure that there is a good hot base to your fire and fully load
the fire with hardwood logs (ideally 40cms (13”) long with a
maximum diameter of 150cms. (6”)
■
Open the lower and upper air controls to allow the fire the fire
to burn fiercely. After 2 or 3 minutes, close the lower air control
fully and close the upper air control to the “almost” fully closed
position.
■
If you require your stove to be used the following morning,
carry out the following procedure:
■
Wipe the door glass clean using a damp cloth and polish off with
a paper towel or clean cloth.
■
Open the lower and upper air controls.
■
Using the ash rake, lightly rake the ashes in the stove, bringing
any hot embers to the centre of the grate.
■
Place small sections of wood on the grate and close the stove
door to the “almost” closed position.
■
When the fire becomes established, add more fully and proceed
as above (see section ‘To light Your Dovre 350CB’ above)
OPERATING YOUR DOVRE 350CB
DOVRE STOVE
CARE & MAINTENANCE OF YOUR
SMOKE EMISSION
If smoking occurs when the stove door is opened, it is a sign that
the flue draught is inadequate. Mostly, burning unseasoned wood
causes this condition and it usually indicates that the combustion
temperature is too low. To overcome a weak draught, ensure your
wood is dry and build a hot fire, leaving both air controls in the
fully open position. If the problem persists, arrange for your
chimney to be expertly checked for design and construction faults.
In some instances, down draught conditions will exist and it may
be necessary to fit an anti down draught device to the top of the
chimney.
FIRE DOES NOT BURN FOR LONG PERIODS
Wood can contain a number of variable factors related to species,
weight, age and moisture content. It is therefore difficult to be
precise with regards to the length of burn time.
If it is thought that the fuel is burning too quickly: -
■
The diameter of the logs is too small
■
If softwoods are used, change to using hardwoods
■
Excessive chimney draught. If so, fit a draught stabiliser
■
Worn out door and glass seals need replacing.
Always try to avoid running your stove for long periods of time
with the air controls closed. This point is particularly important if
the wood is not well seasoned. Failure to do so will cause the glass,
stove walls and chimney to become soiled with tar deposits.
MANAGING YOUR WOOD SUPPLIES
TROUBLESHOOTING
Page 5
Unit 1, Weston Works, Weston Lane, Tyseley, Birmingham B11 3RP.
Tel: 0121 706 7600. Fax: 0121 706 9182.
E-mail: enquiries@dovre.co.uk
Web site: www.dovre.co.uk
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