OPERATING INSTRUCTIONS AND INSTALLATION TIPS
1. GENERAL INFORMATION
DAN SKAN stoves are designed to minimise visual disruption so that you get a complete view of the fire. From the very tips of the full flame pattern right down to the burning embers, our big windows are designed to maximise the pleasure you can get from seeing a beautiful heart-warming and welcoming fire as the focal point in your home.
DAN SKAN‘s technically advanced stoves have been developed for more than four decades with wood burning in mind, how-ever because of their superior construction and the quality of the materials used they are therefore equally at home burning other fuels including wood briquettes and pellets, brown coal briquettes and smokeless mineral fuels, if burned correctly and with a fuel load that adheres to the stove‘s nominal heat output.
Materials such as plastic, chipboards and plywoods, as well as other refuse materials, should not be burned in your stove because they could damage the stove, flue system and the environment and in many areas it is illegal to burn them because of the nuisance smoke they produce.
2. COMBUSTION AIR SUPPLY
DAN SKAN stoves make it really easy for you to control the supply of combustion air, with the simple central pull control on the front of the ash tray with the Classic Line. This supplies primary air through the ash tray and up through the fire grate to the fuel. The secondary combustion air is washed over the glass at both the top and bottom through vents around the door frame and the automatic bimetal control supplies the required amount of post-combustion tertiary air into the flue gases to create an efficient after-burn.
Primary, Secondary and Tertiary air all regulated with one simple control.
3. OPERATING SAFELY
Although our stoves offer you ‘built-in’ automatic intelligence you must still ensure that the riddle grate is completely closed and that the ‘bowl’ of the riddle grate always has a good covering layer of ash.
The pull control should always be open. If excessive flue draught identified it can be controlled by including a draught stabiliser or ‘damper’ within the flue system but this should only be retro-fitted by an approved installer.
Basic setting for wood burning:
- Pull control open …
- Riddle grate closed !
4. BURNING WOOD
Good wood combustion is only possible through a sufficient supply of combustion air and this is why on DAN SKAN stoves the pull control flap should be open (pulled outwards) and the riddle grate closed (handle pushed in).
Additionally there should always be a minimum 50 mm (2") layer of ash on the fire chamber floor and in the riddle grate bowl to provide a heat-reflecting air seal which benefits the combustion of wood.
Grateless burning = environmentally friendly!
Burning like this forces the fire to take its combustion air through the stove‘s air wash channels which in turn enhances the effectiveness of the glass cleaning process to ensure a clear view of the fire.
4a. THE STARTING FIRE (the pre-fire)
The performance of the flue draught can often be affected by adverse weather conditions and in such cases it is advisable (and easier in the long run) to warm the flue and kick-start the up-draught with a quick paper or dry wood shavings fire to expel the column of cold air.
If you are experiencing problems with your flue draught then try opening an external window or door in the room (in the opposite direction of the wind) at the beginning to help compensate for any unusual pressure differences which could be affecting the up-draught.
Once you are sure that the chimney is drawing you can then build the starting fire with 3 to 5 logs and kindling paced on top of these logs – this is known as a ‘top fire’ start. To ensure a quick start you need to maximise the combustion air by fully opening the pull control and leaving the door slightly ajar until the wood is burning well. Never leave the stove unattended while the door is open.
If your stove is fitted with a direct or external air source then it as advisable to keep the door closed, even at the start. Once the fire gets stronger, so too will the up-draught enabling the automatic air system to be activated.
In Modern Line stoves, because of the i-Air system, it is not necessary to open the stove door to provide starting air. This is the same for Classic line stoves which are fitted with the AIRBOX.
Remember, that to successfully operate with external air the industry standard negative air pressure of 12 Pa is needed.
4b. THE HEATING FIRE
After the starting fire has burned for about 60 minutes and is burning strongly you can then add more dry wood logs. The Skamol fire chamber linings should be soot-free which will indicate that the wood fuel is dry enough and that the appropriate combustion temperature has been reached. If you had the door slightly opened for starting the fire, you can then close it. Having a good layer of burning embers ensures an efficient burn and the minimum use of wood logs to keep the fire burning effectively. The pull control has to be open to ensure that the combustion air is then taken from the air wash system to help keep the glass clean.
Pull-control fully open and riddle grate fully closed
With the full heating fire the DAN SKAN Automatic opens the combustion air supply completely to maximise pre-combustion air. Now everything is working in harmony – the flue, the automatic system and the air wash – ensuring that your stove is controlled automatically to reach the highest efficiency and at the same time, with very clear glass! Important: When refuelling or if the fire has burned down and there are no flames (re-start as in point 4a) again leave the stove door open slightly to create a ‘bellows’ effect. With Classic Line and Modern Line stoves operated with an external air supply there is no need to leave the door ajar as the AIRBOX or i-AIR system will automatically supply the extra air that is needed.
4c. RE-FUELLING AND AFTERWARDS
It makes sense not to add more than 2 to 3 logs, which respect the stove‘s nominal heat output, when refuelling because adding more fuel does not necessarily increase the efficiency or improve the performance of your stove.
Strong fires using excessive kindling or fast burning softwoods should be avoided because of the potential to over-fire the stove and damage the components.
When the fuel burns away and the flames begin to die down, so too does the automatic supply of combustion air. After burning wood it is normal that some charcoal remains and this a good indication of economical burning. This will also ensure extremely quick combustion when you re-light the stove.
5. FIRING WITH PELLETS OR BRIQUETTES
DAN SKAN stoves can cope equally well when burning pellets, brown coal briquettes or mineral fuels (nominal heat output as a maximum permissible value). This is because of the DAN SKAN two-layered riddling grate which only requires small changes to the way that you operate your stove when burning these fuels. In these instances the riddling grate should be set in the slightly open position (pulled outwards) to allow the air to be delivered underneath the fuel with the pull control also set in the open position.
We also supply an optional Pellet and Coal Element (PCE) for certain stove models* if it is intended to use this type of fuel for extended periods. This heavy duty cast iron bowl fits snuggly inside the fire chamber and sits on top of the two-layered grate to direct the air from underneath to the fuel and also protect the stove sides from the intense heat that some of these types of fuel produce.
Please note: when not using the PCE only use modest fuel loads to avoid over-heating – say two or three briquettes set in the middle of the two-layered grate and on a bed of embers. To ensure that a passage of air is maintained when burning these fuels you must occasionally riddle the embers by using the external two-layered riddle grate.
*Available on larger CLASSIC LINE models. Not available on the MODERN LINE range. Please ask your DAN SKAN partner for availability.
6. CONTINUOUS BURNING
When the two-layered riddle grate is in the closed position the stove can build up a good layer of embers to promote the efficient burning of wood.
As the fuel is burned and the flames die down the DAN SKAN automatic air system will adjust the supply of combustion air accordingly so that you do not need to monitor or regulate the stove either when burning down low or burning high.
It is the householder‘s legal responsibility to ensure that the stove is installed according to local, national and European Building Regulations.
1. CONFORMANCE CERTIFICATE
Your local authority Building Control department should be notified prior to the installation. According to their procedures they will only issue a certificate of conformance when the work is completed satisfactorily and their fee has been paid.
Alternatively, in England and Wales a Hetas registered installer can be commissioned to install the stove and self-certify that the installation conforms to all relevant Building Regulations. This certificate will be needed in the event of an insurance claim or when selling the house.
2. FLUE SYSTEM
It is a fundamental requirement for a proper functioning stove that there is an adequate flue system or chimney – minimum cross section, effective stack height and sufficient up-draught. We strongly recommend that before installing your stove you seek professional advise, particularly as to the suitability of any existing chimney.
DAN SKAN flue outlets are 150 mm diameter and therefore the flue pipe should also be 150 mm with the chimney diameter being no bigger than 180 mm and ideally 160 mm. An appropriate approved flexible liner is strongly recommended to reduce an existing over-sized chimney to help provide a consistent draw, minimise cold spots within the chimney and promote cleaner smoke-free burning. The minimum flue height should be 5000 mm from the top of the firebox, with 6000 mm being ideal. This stove should not be used in a shared flue.
3. STOVE PIPE CONNECTION
Ideally DAN SKAN stoves should be connected from the top flue outlet because it aids the speedy flow of hot exhaust gases through the flue system. This quick-start vertical run can help improve the flue draught. Where there is poor flue up-draught a rear flue connection may actually make this worse. This is a particularly important consideration where a stove is located in an upper level of a building and the overall flue system height is approaching the minimum requirement of 5 m. However, most DAN SKAN Stoves give you the option of top or rear flue outlet, please see page 88 (HT/HB).
4. SAFETY DISTANCES
Minimum safe distances to walls, furniture and other flammable materials should be strictly adhered to.
The double-skinned construction of the DAN SKAN convection system casing acts like a radiation protection system. This means that while the stove delivers a very high heat output to the room, in practice the sides only get as hot as a traditional central heating radiator.
This makes them safer, but also allows a considerable reduction of the safe minimum distance from the sides and back of the stove to combustible materials to just 200 mm – 250 mm. From the fire chamber windows (including any side windows) the minimum safe distance to combustible materials is 100 – 110 cm.With double side windows only 55 cm. Non-flammable materials such as walls only require a minimum safe distance of 70 mm from the back of the stove, whilst from the sides this is 100 mm.
We recommend that if you have any temperature sensitive material such as leather, wood furniture or fabrics etc then these should be kept a minimum safe distance of 1.5 metres measured perpendicular to the glass. Please note that where single skin vitreous enamel flue pipe is used its minimum distance to combustible materials should also be considered along with that of the stove and whichever distance is the greatest should be adopted.
5. FLOOR PROTECTION
Your stove must stand on a non-combustible hearth which complies with building regulations.
DAN SKAN recommend that this should extend to at least 500 mm from the front rim of the stove and at least 300 mm from the sides.