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Notes on woodburning

Wood burns most efficiently when the air for combustion is supplied from above the fire bed 

rather than below. The air supplied above the fire bed provides the oxygen necessary for the 

volatile gases (smoke), given off by the wood as it heats, to combust. This ensures that the 

gases are burnt and used to heat the appliance instead of being wasted up the chimney or 

condensing and forming tarry deposits inside the stove,  the flue pipe or on the door glass. 

Running the stove with only the bottom air control open  will provide oxygen for the wood to 

burn on the fire base but will not provide air for the volatile gases above the fire bed to combust, 

resulting in a smoky inefficient fire. With the above in mind the stove should be run with the 

bottom air control closed and the top air controls open.

Slow burning

To slow the burning rate and output from the stove reduce the air entering the stove via the air 

controls. The fire must be well established and the stove hot before a minimum combustion 

rate is atempted. Note that if the air supply is restricted too much the fire will burn dirty and 

inefficiently. Slow overnight burning is not advised.

Ventillation

The stove requires an adequate air supply for successful operation (see Installation section of 

these instructions for more details). Ensure that air bricks or grilles supplied for this purpose are 

not blocked. Be aware that the operation of exhaust fans or other appliances that compete for 

ventilation in the vecinity may affect the performance of the stove.

OR

 WOOD BURNING

Running temperature

To get the best results from your stove it is recommended that a wood stove thermometer  be 

fitted to the flue pipe just above the stove. Most thermometers are magnetic and if attached 

to the single wall flue pipe just above your stove will give a good indication of the flue gas 

temperatures.

150 °C - 300°C 

The flue gases should be in this temperature band for the safest, most efficient and most 

economical operation of your stove.

Below 150°C 

This is below the condensation point of wood gases and may cause the build up of tar in the 

chimney, dirty the  stove glass and result in the inefficient burning of fuel.

Above 300 °C 

Too hot. Heat will be wasted up the chimney. Excess heat may damage the stove or ignite an 

existing accumulation of tar resulting in a chimney fire.

Over heating

If the stove is allowed to get too hot and is over heating, close all the air controls fully using the 

tool, keep the fire door closed and let the fire burn down.

Chimney Fire

In the event of a chimney fire dial 999 and ask for the Fire Service. Fully close the air controls 

on the stove and keep the fire door shut. Move any combustibles away from the stove and the 

chimney breast. Also check other rooms that the chimney passes through and move furniture 

and other combustibles away from the chimney here too. 

Before using the stove again after a chimney fire have the chimney cleaned and inspected by a 

qualified person.

Cleaning the glass

We recommend wiping the glass after a fire to prevent the build up of deposits. This is best 

done using a paper towel or a piece of newspaper.

Types of fuel

Wood needs to be well seasoned before it is burnt. Different woods take varying amounts of 

time to season but, as a general guide, before being used in a stove, wood should be cut to 

length, split and then stacked under cover (with the sides open to the air) for at least a year. 

Wood is ready for burning when radial cracks appear in the end of the logs and the water 

content is no higher than 20%. It is then good practice to have it in the log basket, inside the 

house, for a few days before it is actually used in the stove. The internal width of the firebox is 

465mm and so firewood should be no longer than this.

Do not burn unseasoned wood in your woodburner. Do not burn particle board, lacquered, 

painted or treated wood, plastics, rubber or liquid fuels. The stove is not suitable for burning 

solid fuel ie. briquettes\ coal\coke\smokless fuel. The stove should not be used as an 

incinerator.  

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Summary of Contents for FB2 DS

Page 1: ...Maintenance 3 INSTALLATION INSTRUCTIONS Building regulations 4 Positioning and Clearances 4 Chimney 4 Flue connection 5 Problem solving 6 PRODUCT DATA MODEL FB2 DS WEIGHT 100KG NOMINAL HEAT OUTPUT 12K...

Page 2: ...use the cold wood and cold stove take heat away from the flames During this stage ensure both air inlets of the stove are fully open to get a hot flame It might appear that this initial hot burn lets...

Page 3: ...re band for the safest most efficient and most economical operation of your stove Below 150 C This is below the condensation point of wood gases and may cause the build up of tar in the chimney dirty...

Page 4: ...y an unauthorised person and any replacement parts should be as recommended by the manufacturer Chimney sweeping The chimney should be swept a minimum once a year If the stove is used regularly then t...

Page 5: ...ion on hearth requirements Clearances The minimum distance to combustible materials should be 150mm to the sides of the stove Adjacent walls should be of suitable non combustible construction preferab...

Page 6: ...more air is allowed to run over the glass panel The stove is run at too low a temperature Smoke in the room when opening door Never open the door when there are high flames on the wood Poor chimney pe...

Page 7: ...al use of the stove The guarantee does not cover parts deemed to be replaceable in the normal usage of the stove These include Glass Door rope seal Fire Brick linings Firebelly Stoves Ltd Unit 16 Uppe...

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