Opus Tempo 100i DS Specification sheet

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         

FIRED BY DESIGN
1

Contents
Disposal of packaging 4
Introduction 4
1 Description 4
2 General 4
3 Installation of the Stove 5
3.1 Flue pipe connection 5
3.2 Safety rules
3.3 Minimum distances to combustibles
4 Technical specifications 7
5 General information about the working of the stove 8
5.1 Starting the stove 8
5.2 Layout and usage of air regulators 9
5.3 Suitable materials for lighting 9
5.4 Emptying the ashpan 10
5.5 Cleaning and maintenance 10
5.51 Sweeping single sided versions 11
5.52 Sweeping double sided versions 12
Malfunction and service 13
7 Common fault finding 14
8 Warranty 15
Opus commissioning checklist
18
Opus-Tempo-October-2018-V003
2

Attention
Check the stove before installation to ensure that there has been no damage to the
functional parts (air regulators, seals, door, chimney connector, etc.) during transportation.
If you have noticed damage, please contact your dealer. The stove must not be modified in
any way.
“The Clean Air Act 1993 and Smoke Control Areas”
Under the Clean Air Act local authorities may declare the whole or part of the district of the
authority to be a smoke control area. It is an offence to emit smoke from a chimney of a
building, from a furnace or from any fixed boiler if located in a designated smoke control
area. It is also an offence to acquire an "unauthorised fuel" for use within a smoke control
area unless it is used in an "exempt" appliance ("exempted" from the controls which
generally apply in the smoke control area).
In England appliances are exempted by publication on a list by the Secretary of State in
accordance with changes made to sections 20 and 21 of the Clean Air Act 1993 by section
15 of the Deregulation Act 2015. Similarly in Scotland appliances are exempted by
publication on a list by Scottish Ministers under section 50 of the Regulatory Reform
(Scotland) Act 2014.
In Northern Ireland appliances are exempted by publication on a list by the Department of
Agriculture, Environment and Rural Affairs under Section 1 of the environmental Better
regulation Act (Northern Ireland) 201 .
In Wales appliances are exempted by regulations made by Welsh Ministers.
Further information on the requirements of the Clean Air Act can be found here:
https://www.gov.uk/smoke-control-area-rules
Your local authority is responsible for implementing the Clean Air Act 1993 including the
designation and supervision of smoke control areas and you can contact them for details
of Clean Air Act requirements”
The Opus Tempo 70 SE, Tempo 70i SE, Tempo 70f SE has been recommended as
suitable for use in smoke control areas.
Disposal of packaging
The packaging protects the stove from damage during transportation. The packaging
materials can be recycled. The wooden parts of the packaging can be used as firewood.
3

Introduction
Congratulations on your purchase of this Opus stove.
This manual will introduce you to the functions and correct operation of the stove. It is
important that your installer takes you through the operation of this stove during their
handover.
Our guarantee is valid only if the guidelines in this manual are carefully followed.
Please keep this manual, in order to remind yourself how to operate the stove before the
winter months.
. Description
The stove is constructed of welded steel. In the centre is the firebox which is lined with
firebricks. In the 80 and 100 models there is a grate in the firebox base through which part
of the primary air enters and which allows ash to be cleared into the ashpan below. The
Tempo 70, which is designed to receive all of its primary air from the front, has a plate
which covers the grate which must be in place during use. The stove tool enables the plate
to be moved when the stove is not being used to allow ash to be cleared into the ashpan
below.
This stove works on the principle of convection, in which cool air is drawn up from the floor
and warmed between the inner and outer walls of the stove. This warm air is then spread
by convection around the room.
2. General
National and European standards, local construction regulations, fire protection law and
regulations must be observed.
It must be ensured that the installation room is adequately supplied with fresh air.
If extractor fans are present in the same or connecting rooms as the stove, additional
ventilation should be given to allow for this.
Calculation of the chimney set up should be done according to EN 13384-1 and EN
13384-2 with specific values which can be seen in this manual under the section 4.
The stove can be equipped with a connection for an external air supply (see image 1).
The round disc on the back should be removed and the optional 80mm spigot should be
connected using the self tapping screws. A direct air ducting kit is available to connect to
the exterior.
If the combustion air is being supplied from the outside, the duct size will need to be
increased for any duct over one metre long or any run containing bends. 90 degree bends
in particular strongly increase resistence and the duct must be upsized accordingly. The
duct length should not be longer than metres with no more than three 90 degree bends.
The chimney must be able to overcome the additional resistance of the air intake ducting.
4

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When the stove is out keep the air regulators closed, in order for cold air not to be able to
circulate throughout the chimney. However it can be advantageous to open the door some
while before lighting the stove to allow warmer air to begin going up the chimney.
3. Installation of the Stove
The building work must be finished in such a way that the Tempo insert can expand during
operation: the brickwork must never be supported on or against the sides of the appliance.
Leave a minimum expansion joint of 5mm on each side and at least 10mm above the front
3.1 Flue pipe connection
The stove will not burn correctly and efficiently unless it is connected to a properly working
chimney.
The chimney draught must be a minimum of 12 pascals.
The insert chamber must contain no combustible material.
The flue must be fitted in such a way that it cannot be accidentally dislodged during
sweeping.
It is recommended to vent the chamber in which the insert is being installed.
Recommendations:
Minimum chimney height: 4.5 meters
Maximum chimney diameter:
oTempo 0, 70 and 80 1 0mm
oTempo 100 220mm
An existing masonry chimney should be lined with an insulated flexible liner
All flue pipe that is used to connect the stove to the chimney must comply with national
regulations.
All connections from the stove into the chimney must be firm, tightly connected and
overlap at least 25mm.
5

Be careful that flue pipe does not enter into the free section of the chimney.
Maintain the correct distances specified by building regulations between the flue pipe and
combustible material.
This appliance must never be connected to a shared flue system.
If the chimney pressure is too low or too high this may cause problems with the working of
the stove.
3.2. Safety rules
During the installation of the stove, all the building regulation and safety requirements
must be complied with, with particular reference to the recommendations of Approved
Document J.
The appliance must be installed on a floor with an adequate load-bearing capacity. If an
existing construction doesn't meet these prerequisites then suitable measures (e.g. a load
distribution plate) shall be taken to achieve it.
Pay attention to minimum distance required from combustible materials.
A wooden mantelpiece should not be used above an insert stove.
3.3 Minimum distances to combustibles
A 1 00mm In the area of thermal radiation
B1 200mm Back space between the wall and stove
B2 500mm Side space between combustible wall and stove
6

Tempo 00i DS
15.3kW
79%
150kg
200mm
Wood
5.8kg
80mm
43mins
Tempo 00i
9kW 78%
120kg
200mm
Wood
3.7kg
80mm
48mins
Tempo 00 DS
15.3kW
79%
150kg
200mm
Wood
5.8kg
80mm
43mins
Tempo 00
9kW 78%
120kg
200mm
Wood
3.7kg
80mm
48mins
Tempo 80i DS
14kW
79%
150kg
200mm
Wood
5.3kg
80mm
45mins
Tempo 80i
8kW 79%
95kg
150mm
Wood
3.3kg
80mm
48mins
Tempo 80 DS
14kW
79%
150kg
200mm
Wood
5.3kg
80mm
45mins
Tempo 80
8kW 79%
140kg
150mm
Wood
3.3kg
80mm
48mins
Tempo 70i DS
12.7kW
82%
120kg
200mm
Wood
3.5kg
80mm
41mins
Tempo 70i
4.9kW
7 %
85kg
150mm
Wood
2.5kg
80mm
45mins
Tempo 70 F
4.9kW
7 %
125kg
150mm
Wood
2.5kg
80mm
45mins
Tempo 70
4.9kW
7 %
85kg
150mm
Wood
2.5kg
80mm
45mins
Tempo 60
4.8kW
81%
8kg
150mm
Wood
1.8kg
80mm
45mins
Nominal output
Efficiency
Weight
Flue pipe diameter
Fuel
Max. Fuel load
External air spigot diameter
Average refuelling interval at
nominal output
7
4 Technical Details

5. General information about the working of the stove
Always use a glove
Do not use any flammable liquid fluids for lighting the fire. The door of the firebox should
be opened only when adding fuel, apart from leaving the door slightly ajar during the
lighting phase.
Use only suitable fuels (see section 5.2.).
Check that there is enough fresh air coming into the room. Stoves should only be used by
adults. All parts of the appliance, especially the external surfaces will be hot to touch when
in operation and due care will need to be taken. Make sure that children are never alone
near the stove. Never leave the stove for a long period of time without surveillance.
The stove should be used only according to the instructions in this manual.
5.1. Starting the stove
Please pay attention to the minimum space between the stove and flammable objects
when lighting a fire.
1. Primary and secondary controls should be fully open.
If the flue pipe has a flue damper it should also be fully open.
2. Remove enough ash from the grate (on 80 and 100 models) to let air through but leave
some of the ash there. Place a couple of logs down first, followed by smaller pieces of
wood and then kindling on top. Put 1-2 firelighters on top.
3. Light the firelighters and leave the door slightly open as it prevents condensation on the
cold glass. Do not leave the stove unattended when the door is ajar.
4. After approximately 5 to 10 minutes, when the fire is burning fully, close the door.
5. When all the fuel is properly burning, and the working temperature of the stove is
achieved (after approximately 20-30 minutes), gradually move the primary air regulator
backwards, but ensure that there is still a visible flame.
When the stove is up to temperature and the fire burning well then the primary regulator
can be completely closed.
. The door should only be opened again when the fuel has burned right down and you
want to put new fuel in.
8

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If there is insufficient burning material in the fire bed to light a new fuel charge, excessive
smoke emission can occur. Refuelling must be carried out onto a sufficient quantity of
glowing embers and ash that the new fuel charge will ignite in a reasonable period. If there
are too few embers in the fire bed, add suitable kindling to prevent excessive smoke.
It is recommended that the secondary air regulator is kept fully open in order for the “glass
cleaning” to be most efficient, and to avoid the glass “fogging”.
7. Use the amount of fuel you place in the stove to regulate the room temperature.
Nominal heat output can be achieved by closing the primary air control, and leaving the
secondary air control open 28mm from the fully closed position.
To achieve a slow combustion, the primary air control must be fully closed, and the
secondary air control lever must be opened 14mm from the fully closed position or to the
DEFRA kit stop if the stove is an SE model.
8. When adding larger wood it is good practice to put in a couple of smaller bits first as the
larger logs then light faster, so producing less smoke. When adding wood, the primary air
control must always be opened, and left open until the new logs have caught fire. At that
point close the primary control and leave the secondary air to facilitate the combustion.
THE STOVE SHOULD NEVER BE FILLED EXCESSIVELY. EXCESSIVE AMOUNTS OF
WOOD OR AIR FOR COMBUSTION CAN CAUSE OVERHEATING AND DAMAGE THE
STOVE.
During the first few times the stove is used, it is possible that it can produce a slight smell
while the paint is curing. This will disappear after a short while. If the smell appears, open
the windows of the room for ventilation.
5.2 Layout and usage of air regulators
9

5.3 Suitable materials for lighting
The stove should be used for the combustion of natural wood and wood briquettes.
Some of the best wood for the stove is beech and birch. These types of wood have the
highest burn temperature, and they burn the cleanest, as long as they have been stored in
a dry place for a sufficient length of time.
If the glass window blackens excessively during burning it is usually an indication that the
moisture content of the firewood is too high.
Do not use any of the following:
• Damp wood or treated wood
• Cardboard
• Bark or plywood
• Plastic or other waste
Fresh wood should be cut up and stored for 12 to 18 months in open storage, but protected
from rain. Any wood used should have a maximum humidity of 20%.
5.4 Emptying the ashpan
It is recommended to clean out the ash every day. Keep a certain amount of ash on the
base of the firebox as it assists slow burning.
Be careful that too much ash is not accumulated otherwise there is the danger that, if the
ash reaches up to the grate, it will not cool sufficiently and may get damaged.
Before emptying the ashpan, check if there are any embers left in the ashtray.
Even though the ash is cold from the outside, it is possible that there are embers within the
ash which can lead to a fire in the waste bin.
5.5 leaning and maintenance
The chimney must be swept and the stove serviced at least once a year.
The stove can only be cleaned when it is cold.
Pay attention while cleaning your stove not to damage, scratch or break essential parts.
For cleaning steel parts use non-abrasive detergents and a soft rag, and after cleaning
wash it well to avoid the deposit of detergent which can damage material.
Cleaning the glass should be done when the stove is cold, using normal detergent for
washing the glass. In the case of solid deposits that need to be removed, we recommend
using a stove glass cleaner that is intended for that use. Alternatively a damp rag dipped in
a little bit of ash can be just as effective. After washing, wipe over with clean water.
10

Attention: The stove paint only achieves its ultimate strength after reaching its rated
temperature a few times. To avoid damaging the paint, it is important to clean the stove
surface only after the paint achieves its ultimate hardness.
It is important to have the chimney regularly checked and cleaned by a qualified chimney
sweep.
5.51 Sweeping single sided versions
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In case of chimney fire
If the wrong or unseasoned wood is used, it is possible that a chimney fire can occur due
to the accumulation of deposits inside the chimney.
Immediately close all air regulators on the stove and call the fire brigade.
If a chimney fire was to occur, an experienced professional should be employed to check
the entire flue system.
. Malfunction and service
In the event of a product malfunction please contact your supplier. If the stove is under
warranty your supplier will take care of the warranty claim.
Regular maintenance of the stove and flue should be carried out by a competent
engineer.
Use only replacement parts as recommended by the manufacturer.
13

7. Common fault finding
Please be aware that in the event of your stove not performing properly, you should always
consult your installer or a qualified professional. Below is a list of potential problems and
possible causes:
Problem Possible cause
Fire hard to light Kindling too large or not dry enough
Bad quality or wet wood
Logs too thick
Insufficient time with door ajar (needs 5-10 minutes)
Insufficient time with primary air (needs 20 minutes)
Cold flue pipe (open stove door 20 minutes before
lighting)
Fire lights but won't keep
burning
Insufficient chimney draught (consult installer)
Primary air closed before stove up to temperature
Bad quality, oversize or wet wood
Insufficient embers to ignite new load of wood
Insufficient chimney draught (consult installer)
Glass blackens up Wood has too high a moisture content
Secondary air closed down too far
Slow burning periods too long
Fire won't turn down
Wood pieces too small
Ashpan not properly closed (ash build up behind
ashpan)
Ashpan or door rope seal needs replacing
Chimney fire Moisture content of wood too high causing excessive
build up of tar in the chimney
Insufficient heating Chimney draught too strong
Stove sized incorrectly
14
Stove smoking Moisture content of wood too high
Flue pipe obstructed
Flue damper is closed
Insufficient chimney draught (consult installer)
Soot build up in chimney or flue (sweep chimney)
Obstruction in chimney (sweep chimney)
Chimney height or termination insufficient
Downdraft (puffs of smoke occurring in particular
wind conditions – install an anti-downdraft cowl)
Insufficient air getting into the room or extractor fans
present

Always ensure that all firewood used is good quality and has a maximum moisture content
of less than 20%.
8. Warranty
The warranty cover is effective from when the unit is handed over to the buyer.
In case the commissioning does take place within 3 months from the date of purchase
then the warranty period starts on the day of purchase of the product, which must be
demonstrated by proof of purchase such as a sales receipt or paid invoice from the seller.
OPUS declines all liability for any accidents due to failure to observe the specifications
contained in the use and maintenance manual accompanying the device. Furthermore,
OPUS declines all liability deriving from improper use of the product by the user (including
heat-shock, overload or misuse of the firebox), unauthorised modifications and/or repairs,
and the use of non-original spare parts or spare parts not designed for use on this product
model.
Duration of warranty is five years on the stove body and moving parts (hinges, handle, and
fittings). Please note that the warranty does not cover glues, seals, ceramic glass and
firebricks.
9. Technical information
The following technical information about Opus Tempo stoves shows the energy class,
energy label and other information showing that our stoves meet EU EcoDesign
regulations.
Product Fiche
Commission Delegated Regulation (EU) 2015/1187
Energy Labelling o Local Space Heaters
15

70F 80i DS 100i DS
Energy Efficiency Class of
Model A A A+ A A A A
Nominal Heat Output to
Room (kW) 4.8 4.92 12.7 8 14 9.28 15.3
Nominal Heat Output to
Water (kW) N/a n/a n/a n/a n/a n/a n/a
Net Efficiency (%) 81 7 .3 82 70. 5 79 78 79
Energy Efficiency Index 107 104 108 103 104 103 104
16
Supplier’s Name or
Trademark: Tempo Tempo Tempo Tempo Tempo Tempo Tempo
Model 0, 0i 70, 70i, 70i DS 80, 80i 80 DS, 100, 100i 100 DS,

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w 15,3
kW
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w
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kW
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O 

Opus commissioning checklist
General information
Stove purchased from
Telephone number
Stove installed by
Telephone number
CPS registration with (e.g. HETAS)
CPS registration number
Installation date
Stove model
Physical checks
Installation is in accordance with the design, including material specification, flue length and
diameter
The installation instructions have been followed
There is no damage to any components
Joints between the appliance and chimney and within the chimney system are secure and in good
condition
The separation of components from combustible materials conforms to this code of practice
The appliance and chimney can be fully cleaned, once the installation is complete
Components for weatherproofing are installed correctly
Smoke spillage test has been carried out
CO Alarm fitted and tested
Handover
At handover all user instructions should be given to the user and an explanation of the appliance operation
and safety issues should be given. Additionally an explanation of the correct removal, relocation, and any
sealing of the removable/hinged section of the chimney should be given and all safety issues explained.
Commissioning engineer’s
signature*
*By signing this you confirm that all commissioning checks above have passed, and that operation and
maintenance of the appliance have been explained to the customer in full in line with this user manual.
18