Aduro 5 Inset Wood Stove User Manual

: July 25, 2024
: ADURO

Table of Contents

Congratulations on your new Aduro fireplace insert!
General
Installation of the stove
Lighting the stove
The chimney
Maintenance and cleaning of the stove
Accessories
Right of complaint
Disposal of the fireplace insert
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

User Manual

Aduro 5.1
13240 – Ecodesign 2022
aduro.dk/adurofire.com

Congratulations on your new Aduro fireplace insert!

To get the best possible experience and benefit from your new Aduro fireplace insert, it is important that you read the user manual thoroughly before you install the stove and start using it. Errors or incorrect settings can cause hazardous conditions and/or poor operation.
For further information, please go to www.adurofire.com.
Extended product warranty – free online registry
You have the opportunity to extend the warranty on your fireplace insert from the statutory right of complaint to an extended warranty of five years. All you need to do is register the stove at www.adurofire.com/warranty/. The deadline for registering is five months from the date of purchase.
Production number
The stove has a production number on the rating plate on the back of the stove and the number is stamped inside at the bottom of the door. For most of our stoves, the production number is also stamped on the front page of the quick guide that is enclosed with the stove. For the purposes of the guarantee and for other enquiries, it is important that you are able to quote this number.
HOW TO SUCCEED WITH YOUR NEW ADURO STOVE
In Aduro’s Customer Service Center you will find tips and tricks on how to succeed with your new Aduro stove. Here you will have direct access to interesting content about maintenance of your stove as well as support related information.

General

1.1 Compliance
The stove complies with the European Directive Ecodesign 2022, the EN13240 European standard as well as the NS3058 Norwegian standard and is thereby approved for installation and use in Europe. At the same time, the manufacturing process is subject to external quality control. DoC (Declaration of Conformity) can be downloaded at www.adurofire.com/download/.
1.2 Transportation
When taking your stove home, please ensure that it travels in an upright position. If you wish to lay it flat, it is important that you remove all loose parts from the combustion chamber (cast iron grate, baffle plates, and insulation tiles) and remove the ashpan. Otherwise, you can leave the insulation tiles and the cast iron grate in the combustion chamber and then fill it up with surplus packaging to secure the loose parts.
1.3 Technical data

Aduro 5.1|

Data

---|---
Flue outlet, diameter| 015 cm top/rear
Outer dimensions (HxWxD)*| 57.4 x 63.5 x 46 cm
Distance from centre of exhaust branch to rear edge of stove| 19 cm
Weight| 77 kg
Fuel| Wood
Max wood length| 40 cm
Maximum combustion amount per hour (wood)| Ca. 3.4 kg
Nominal power| 7.0 kW
Energy efficiency| > 78 %
Energy efficiency index| 105.1
Energy efficiency class| A
Material| Sheet iron
Convection stove| ✓
Air-wash system| ✓
Ashpan| ✓
Chimney draft| 12 Pa
Heat rating in buildings with
– Optimum insulation
– Average insulation
– Inadequate insulation| 175 m2
115 m2
70 m2

*See illustrations on adurofire.com

Installation of the stove

You may install your fireplace insert yourself – but we strongly recommend that you consult your chimney sweep before beginning the installation. It is important to ensure that all local rules and regulations, including ones relating to national and European standards, are complied with when installing this device. Your dealer can also provide you with installation advice. Remember, it is your responsibility that rules in force are complied with.
APPLIES TO UK INSTALLATION ONLY: To comply with UK building regulations an approved CO monitor should be installed in the same room as the appliance.
You may not begin to use the stove until it has been inspected and approved by your local chimney sweep.

Illustration Aduro 5.1

*Remember to mount the set screws before the insert is placed at the correct position. The set screws are in the ash drawer.

Surrounding aperture
The insert is constructed in a way that makes it possible to make the brickwork shut almost tight around the insert the first 10 cm in the depth from the front. This means that the hole in the front brickwork must be 5455 cm high and 58.5-59 cm wide. After the first 10 cm in the depth there must be 2.5 cm air space around the insert which gives a minimum total width of 63.5 cm. and a total depth of minimum 49 cm in the hole. It is very important to ensure the 2.5 cm air space around the insert and that the installation is correct (see section 2.2), otherwise the fireplace insert will not cool down sufficiently. A correct cooling is crucial for the energy efficiency as well as for the function of the Aduro-tronic. The front of the insert with the frame covers an area of 57.4 cm in height and 63.5 cm in width. When making the whole in the brickwork then please also remember that you might need some extra space when the pipe has to be mounted.
2.1 Position of the stove / distance requirements
Please make sure that the fireplace insert is installed in a suitable and physically possible position. You need to be sure that the position complies with local regulations. Distance requirements will only apply if the fireplace insert is to be placed close to flammable materials. See below:

Distance to flammable material (cm)| Behind the stove| To the sides| Distance to furniture| Minimum height above floor level
---|---|---|---|---
Aduro 5.1| 25| 30| 110| 26

It is possible to reduce the distance to flammable material by insulating with at least 5.0 cm insulation with identical properties to Aduro Superisol, Isolrath 1000 or similar material around the Aduro 5.1. Please make very sure that there is still at least a 2.5 cm space around the Aduro 5.1. This means that the distance to flammable material can be reduced to 7.5 cm (2.5 cm space around the insert + 5 cm insulation):

If the fireplace insert is to be placed close to flammable material such as a wooden floor or carpet, it must be placed on a non-flammable base. The floor plate should extend for at least 30 cm in front of the fireplace insert and 15 cm on each side measured from the opening of the combustion chamber.
The fireplace insert must be installed on a floor with the adequate load- bearing capacity. If the existing construction does not meet this requirement, appropriate adaptation measures must be taken (e.g., a load-distributing plate).
2.2 Convection and ventilation
The Aduro 5.1 is built as convection stove. This means that air from the room circulates between the inner stove and the outer covering. As a result, the heated air is distributed evenly throughout the room. In order to fully exploit the energy in the wood, however, the heat generated around the fireplace insert and the flue pipe (that connects the fireplace insert to the insulated chimney) should also be used. The calorific values depend on the length of the uninsulated flue pipe – initially, the first meter of uninsulated flue pipe will increase the efficiency by approx. 5 %. There should be at least 25 mm space around the fireplace insert. It is important that the space around the fireplace insert, and the flue pipe is ventilated. There should be ventilation openings of at least 200 cm2 both below and above the fireplace insert. There are many ways to create ventilation around the flue pipe. See illustration.

2.3 Connecting the flue pipe
The fireplace insert can be connected using either flexible piping or regular flue piping. If you use flexible piping, you must ensure that the piping is designed for flue gas use and can withstand high temperatures.
Flexible piping may only be used in an existing fireplace installation. Therefore, we recommend that you consult your chimney sweep before using flexible piping. You can use both the top and rear outlets on the fireplace insert, depending on what suits your installation best. The Aduro 5.1 is supplied ready for fitting the flue pipe on the top. If the flue pipe is to be fitted on the back, the round circle should be removed from the rear plate of the fireplace insert. The cover plate (that covers the rear outlet) should then be moved to the top outlet. A flue pipe with an internal diameter of 150 mm should be used for the Aduro 5.1. It will usually be easier to use flexible piping if there is not particularly good access to the chimney. If, on the other hand, you have complete access, we recommend that you use a regular 2.0 mm steel flue pipe.
2.3.1 Flue piping in new installations
The easiest way of installing the flue pipe is through a chimney with an aperture of 160 mm straight above the exhaust connector on the inset. In this case, a straight 2.0 mm flue pipe with an internal diameter of 150 mm of a suitable length should be used. 3 x gasket bands should be placed around the flue pipe, which is then pushed up into the chimney. The fireplace insert is placed in position and the flue pipe is pulled down over the exhaust connector.
The fireplace insert can also be fitted with a steel chimney. The steel chimney should be placed directly above the exhaust connector. We recommend the use of a steel chimney that is self-supporting and fitted with a telescopic flue pipe. This solution allows you to lift the flue pipe and remove the insert without affecting the chimney. Remember that the space above the fireplace insert should be sealed off with a horizontally positioned non- flammable plate. This plate should be installed at least 85 cm below the ceiling. The space under this plate (above the fireplace insert) should be ventilated as described on the previous page.
If the chimney goes directly down into the fireplace insert without sharp angles or significant bending, a wall sleeve will usually not be needed. It is also important that there is no edge inside the chimney where soot can collect.
2.3.2 Flue pipe installation in a large chimney
A chimney that is larger than the flue pipe can be sealed with fixed rockwool batts, that are trimmed so that they adhere tightly around the flue pipe. The batts should be laid in 3 layers and spread with fireplace mortar before they are pushed up into the chimney from below. The fireplace mortar will stiffen and fix the batts to form a floor in the chimney.
2.3.3 If you do not have free access to the chimney and are using flexible piping
The flexible piping should be trimmed to the appropriate length. Please note that the flexible piping should protrude approx. 10 cm into the pipe sleeve. Then a thin gasket should be placed between the flexible pipe and the pipe sleeve in the chimney and the flexible pipe should be pushed securely into place in the pipe sleeve. Adjust with the setting screws until it is in the correct horizontal position.
The fireplace insert can be connected to a chimney to which other heat sources are connected.

Lighting the stove

Important safety information:

The fireplace insert will become warm during use and therefore it should be treated with all necessary caution.
Never keep easily combustible fluids such as petrol in the vicinity of the stove.
Never use easily combustible fluids to light the fire in the stove.
When lighting a fire and adding new wood logs, it is important to get the fire burning fast. If the fire does not start quickly and wood only smoulders, it can cause strong smoke formation and in worst case cause an explosive ignition of the flue gasses, which can damage the stove.
Never empty the ashpan when the stove is warm. Embers may still be found in the ashpan for up to 24 hours after the fire has gone out. Please wait to empty the ashpan until you are sure that there are no embers in the ash.
The door should be kept closed while the stove is in use. While lighting the fire, the door can stand ajar for the first few minutes.
When putting logs in a hot stove, you must always open the primary air intake and make sure that the wood ignites within 2-3 minutes. If the wood does not ignite, add some ignition products, and ignite them manually. Please make sure that the flames are burning steadily for the first 10 minutes before you leave the stove.
In the event of a chimney fire: Close all the dampers on the wood burning stove and call the firefighting service.

3.1 Air dampers
The stove is equipped with air dampers for regulation of the primary and secondary air supply. The primary air is used at the beginning to get the fire going, and the secondary air keeps the fire burning evenly. The tertiary air ensures that flue gasses are burned and is not adjustable. You must always add secondary and tertiary air, while firing the stove.
3.1.1 Primary damper
When you add new logs, the primary damper should be opened until the fire is burning properly. In order to utilise the fuel to the fullest extent, the embers should have burnt for so long that it is necessary to open the primary damper for approx. 2 minutes to get the logs burning. In order to reduce the risk of ash falling from the stove when the door is opened to add more fuel, it is a good idea to open the primary damper for approx. 1 minute before the door is opened. This increases the draft through the stove.
3.1.2 Secondary damper
The secondary damper behind the door allows you to adjust the stove to the chimney draft and the required heat output. Turning the damper to the left decreases the air supply and turning to the right increases the air supply. In normal circumstances, the stove should be working with this damper open between 60 % and 100 %. You should never close the air supply so far that the flames go out. There should always be visible flames in order to achieve a clean and efficient combustion. A too low supply of air can lead to bad combustion, high emissions, and a low efficiency. The air-wash system that minimises soot on the front glass is also adjusted by this damper.
If you want to fire in the stove with the lowest possible effect – around 3 kW – you must close the secondary damper almost completely approx. 45 minutes after stoking. At this point there are only few flames, and the stove can burn clean by using the tertiary air from the back of the combustion chamber.

Aduro Key: The stove comes with an Aduro-key which provides easier control of the secondary damper. The key is fitted onto the control handle in order to easily adjust the airflow from side to side. See illustration.
3.2 Aduro-tronic
Aduro stoves are equipped with the patented Aduro-tronic automatic as a standard. Aduro-tronic is a manually operated mechanical start-up device, which works without the use of electricity. It automatically regulates the combustion air and thus secures an efficient combustion. For further information, go to www.adurofire.com.
3.2.1 How to operate Aduro-tronic
When lighting
When lighting a fire in the stove, the maximum amount of primary air will be needed to light the fire. For that reason, the primary damper can be kept “forcibly open”. This is done by pulling the primary damper out as far as possible and then fixing it with the Aduro Key (see illustration). When the stove is warm, and a layer of embers has been created on the bottom of the combustion chamber, the Aduro-tronic can be set to the automatic position, i.e. the Aduro key can be removed. Alternatively, you can leave the door ajar the first few minutes during the ignition phase (without the key).

When stoking
You activate the automatic by pulling out the damper every time new firewood is added. The Aduro-tronic automatic will then close the damper gradually after the pre-programmed time. It is important that there are still clear flames after the damper is closed.
Regulation of the Aduro-tronic automatic
The automatic is pre-set to close the primary air intake within 6 minutes. This setting has been used during testing at the Danish Technological Institute using a standard chimney and ‘standard’ sized logs (approx. 30 cm long and 10×10 cm thick) with maximum moisture content of 18%. In practice, such circumstances can differ, which is why the Aduro-tronic automatic can be adjusted to your circumstances. If you want a slower intake of primary air (e.g. for a lower chimney draft, larger sized wood, or for longer intervals between stoking), adjust the screw on the front of the control bracket using a small allen key. If the screw is turned to the right, the closing time is increased, and if turned to the left, the closing time is reduced.
3.3 Ventilation / fresh air supply
In order for the stove to function at optimum efficiency, air is needed for the combustion process. There must be sufficient fresh air coming into the room where the wood burning stove is placed. In very well-insulated houses or houses with powerful cooker hoods and/or air conditioning systems, a vacuum can be created around the stove, leading to smoke leakage and poor combustion. In these circumstances, it might be necessary to open a window to provide air for the combustion and to equalize the vacuum. Alternatively, you could place an air vent in the room where the wood burning stove is placed. The amount of air needed for the combustion is 25 m 3 /h.
3.4 How should I use my fireplace insert?
The fireplace insert is intended for intermittent combustion. This means that each stoking should burn down to embers before new logs are added.
You can regulate the effect/heat output with the fuel. Burning small logs provides more powerful combustion than burning large logs. The ideal heat output is reached by burning approx. 2.2 kg wood per hour.
If you experience problems lighting the fire or the fire dies after a short time, it can be due to the following reasons:

The firewood is not dry enough. The firewood should have a moisture content of max. 18%.
There is a negative pressure in the house. See section 3.3.
The smoke outlet from the outside may be blocked from sooth. This can occur after chimney sweeping. Control the smoke outlet.
The used amount of wood may have been too small. Therefore, the embers were too weak and cold to light the next load of wood.

If you overload the wood burning stove and burn more than the recommended amount of wood per hour (see section 1.3), there is a risk that the surface of the stove will become discoloured and eventually fall off. The stove can be resurfaced.
3.5 The first time a fire is lit
The fireplace insert is packed in recycling packaging. The wood from the packaging can be sawed into smaller pieces and used the first few times a fire is lit. The plastic packaging must be disposed according to national rules regarding disposal of waste.
During transportation, it may happen that the baffle plate in steel falls out of place. Therefore, before using the stove, please make sure that the baffle plate is properly placed for optimum combustion and preventing soot on the glass.
The first few times the fireplace insert is used, there may be some smoke and unpleasant odours from the fireplace insert, which is fairly normal. This is caused by the heat-resistant paint hardening. Make sure there is sufficient ventilation during this stage. It is also important not to let the fire burn too fiercely the first 2-3 times, so that the steel has time to expand slowly.
You should also be aware that the stove may make some clicking sounds as it heats up and cools down – like pouring boiling water into a sink. These are caused by the great differences in temperature to which the materials are being exposed.
During the first firing, which should be carried out using approximately 1 kg of wood, the door must be left slightly open and must not be closed until the stove is cold. This is to prevent the gaskets from sticking to the stove.
3.6 Lighting a fire in the fireplace insert
How you light a fire is very important for a quick and efficient ignition phase. Follow these instructions when lighting the stove:

Open the primary damper under the door and the secondary damper behind the door.
Place a wood log crosswise in the combustion chamber and put 2 firelighters close to the log. Light the firelighters and quickly put a new log close to the firelighters and several small logs at an angle above it. Air must be able to reach the firelighters, but the logs should be touching to “warm” each other.
When there are distinct, visible flames and the fire is burning well, close the primary damper under the door.

The control handles will get warm when the wood burning stove is in use. Please use the glove provided when you operate the stove.

3.7 Recommended fuels
We recommend the use of split hardwood that has been stored outdoors under cover for at least 1 year.
Wood that has been stored indoors has a tendency to become too dry and will burn too quickly. We recommend that you fell the wood during the winter when a lot of the moisture in the wood will have been drawn down into the roots. In order to achieve optimum combustion, the wood’s moisture level should not exceed 18%, which roughly corresponds to storing the wood outdoors under a cover for one year. The moisture level of the wood can be measured using a wood moisture meter or by applying dishwashing liquid to one end of the log and blowing air in the other end. If the wood is dry enough, soap bubbles will appear. The wood should be chopped into logs with a diameter of approx. 10 cm and a length of max. 40 cm. Firing with wet fuel will reduce the energy efficiency and increase the particle emission. Burning varnished wood, impregnated wood, chipboard, paper, and other waste is strictly forbidden. Burning these materials will damage the environment, the wood burning stove, and your own health. Fossil fuels must not be used.

The chimney

The stove is tested in accordance with current standards, where a smoke exhauster secures a constant chimney draft of 10-14 Pascal (Pa). However, with a natural draft (without a smoke exhauster installed) the chimney draft will increase to 18-25 Pa at optimum conditions. There are many factors that affect the chimney draft, including the outside temperature, wind strength, and surrounding buildings. There are no requirements with respect to specific chimney heights, but a chimney must be tall enough to provide a good draft. If the recommended chimney draft is not achieved, there may occur problems with smoke coming out of the door during firing.
Calculation of chimney when firing with wood

Flue temperature at [20°C]	266
Chimney draft at testing power [mbar]/[Pa]	0,12 / 12
Flue gas mass flow [g/s]	7,5

4.1 Inadequate draft in the chimney
If you experience poor draft in the stove after the installation, please make sure that there is nothing in the chimney to restrict the smoke and that no nearby buildings or trees affect the winds around the chimney.
If the chimney is too short, leaks, or is inadequately insulated, there may be problems with the chimney draft (let the chimney sweep assess this). The draft should be sufficient during the ignition phase when the stove/chimney is cold to provide a clean combustion and prevent smoke leakage. Therefore, we recommend a chimney draft around 5 Pa in the ignition phase.
Once the ignition is a success, and the smoke temperature is rising, it is important that the chimney draft reaches a stable area around 18-25 Pa in operation (1 hour after ignition) when the chimney/stove is hot.
The draft in the area of 18-25 Pa when the stove is hot is essential in order to achieve an optimum and clean combustion. Therefore, we recommend that you measure the chimney draft when the chimney is cold and when it is hot after 1 hour in operation.
In practice, the chimney draft will differ – especially in cold condition. Therefore, the best indication of the chimney draft is to measure the draft when it is hot. If the chimney sweep judges the draft to be sufficient, but you still have problems lighting a fire, try extending the ignition phase by using more thin pieces of kindling and 1-2 firelighters, so that the chimney gets thoroughly warm. The chimney will not draw at optimum effect until it is warm. When a layer of embers has been formed, add 2-3 dry logs.
If it is impossible to establish a sufficient natural chimney draft, you can mount a smoke exhauster, e.g.
Aduro DraftOptimizer.
4.2 Chimney and smoke
If you experience smoke coming out of the stove or the start section of the smoke pipe, it could be due to certain weather conditions. On stormy or cold winter days, or if the chimney has not been used in a while, a cold plug can be created in the chimney, meaning the natural draft will be at its minimum.
If the chimney is cold and cold plugs are created, you may experience smoke leaks during the ignition phase. In this situation there can be more smoke than usually in the combustion chamber, and some of it might leak out of the stove. Therefore, if you have a cold chimney that has not been used for a while, we recommend that you use some wood sticks to heat the chimney and eliminate the cold plug.

Maintenance and cleaning of the stove

All maintenance and cleaning of the stove should be carried out when the stove is cold.
Combustion chamber
The fireproof tiles in the combustion chamber eventually wear out and should be replaced when the cracks are more than 0.5 cm wide. The durability of the tiles depends on how often and how intensively the stove is used. You can change the tiles yourself. They are available as a ready-to-use set. You can buy the sets at www.aduroshop.com.
Glass
Wet wood, unsatisfactory chimney draft, and wrong use of the stove can leave soot stains on the glass panes. It can easily be removed using a damp cloth that you dip in cold ash and rub on the sooty glass. Special cleaning agents are also available to remove soot from glass, e.g. the Aduro Easy Clean pad. The pad neither scratches nor damages the glass and is for multiple usage. Water or other cleaning agents are not necessary.
It is common maintenance to tighten the glass fittings and the hinges shortly after the stove has been installed.
Gaskets
Over time, the gaskets wear out and should therefore be checked regularly. If they are leaky, they should be replaced, as it is essential that the stove is tight. In addition, check regularly that the gaskets stay in place so that no smoke escapes from the stove.
Adjusting the door
Adjusting the door and the closing mechanism is a necessary part of the maintenance of the stove, which you can easily do yourself. If the door hangs on one side, feels sluggish to close or does not close properly, you should adjust and tighten the hinges and fittings around the door.
Ashes
Empty the ashpan before it gets completely full but always leave a layer of ashes in the combustion chamber because it insulates and makes it easier to light a fire next time.
Cleaning the stove
The stove’s surface will stay at its best just by being vacuumed with a small, soft mouthpiece or dusted with a soft, dry cloth. Do not use spirit or other solvents, as they will remove the paint.
Do not clean the stove with water. If the stove is exposed to moisture, the stove may develop rust.
The inside of the stove and the flue pipe can be cleaned through the door or alternatively through the cleaning aperture in the flue pipe/chimney. The upper fireproof tile (the baffle plate) can be removed. To allow free access to the top of the stove and the flue pipe, remove the baffle plate in steel. The flue pipe can be removed from the stove and cleaned. Cleaning of the inside of the stove and the flue pipe should be undertaken at least once a year, or more frequently if necessary, depending on how often the stove is used. This work can also be carried out by the chimney sweep or your local Aduro GO partner.
Repairing the surface
The stove is painted with a heat resistant paint that can withstand temperatures up to 500 degrees. If the surface of the stove gets scratched or worn, it can easily be renewed using this type of paint. The paint is available in black metallic at www.aduroshop.com/aduro-spray-black-metallic- 53262a. Spare parts and unauthorized alterations
You may only use original spare parts for your stove. All forms of unauthorized alterations to the stove are strictly forbidden, as the stove will no longer comply with the approved specifications. At www.aduroshop.com you can buy original spare parts for your stove.
Bauart safety spring
All Aduro stoves are fitted with a “Bauart” safety spring. The mechanism ensures that the door of the stove closes automatically. The “Bauart” spring is a law requirement in some European markets, so please check your local regulations if you wish to permanently remove the spring.
If you wish to remove the spring, here is how to do it:

Use a pair of pliers to pry the upper hook of the Bauart spring out of the hole in the stove’s door.
Watch this video.
Please note that the spring is in tension when the door opens, so make sure to protect yourself during removal. We recommend that you use protective gloves.
For optimum combustion, we recommend that you close the hole in the stove with a self-tapping screw, sealing compound, or ceramic glue.

Accessories

For Aduro stoves we offer a wide range of accessories to fulfil the experience:
Companion sets, firewood baskets, fireplace grid, floor hearths, flue pipes, and kindling products. For further information, go to www.adurofire.com/accessories/.

Right of complaint

The right to complain applies in accordance with the sales act in the country where the stove was purchased.
The dated receipt will be sufficient proof.
The right of complaint does not cover:

Damages resulting from incorrect installation and use of the stove, overheating, and wrong or missing maintenance of the stove etc.
Consumable service parts (glass, gaskets, insulation tiles, slides, painted surfaces, cast iron grate etc.), which are subject to normal wear and tear. You can buy these parts in our online shop www.aduroshop.com.
Damages caused by electrical surcharge, (condensation) water in and around the chimney, too much or too little draft in the chimney and missing maintenance/cleaning of the chimney/flue pipe/installation.
Damages to the stove caused by external influences, or damages caused by the stove on other objects. Read more at www.adurofire.com/warranty

Disposal of the fireplace insert

When disposing your wood burning stove, metal, vermiculite, and ceramic glass must be sorted separately.
Dispose hereafter the materials according to the regulations at your nearest recycling depot.