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Frequently Asked Questions

Category: Multi Fuel / Wood Burning Stove FAQs

What size of Stove do I need?
To achieve a relaxing room temperature of around 21ºC when the external air temperature is at freezing (0ºC) you will need approximately 1kW of heat output for every 14 cubic meters of space. Measure the length, width and height of your room and multiply the three figures together.
For example, a room measuring 7m long by 4m wide and with a height of 2.5m is 70 cu. m. of space. Divide by the sum by 14 and this means you will require a 5kW stove.
However this is just a rough guide, factors such as the number of outside walls, the size of windows and whether they are double glazed, the age of the home etc, can all influence the heat requirement. We would always recommend you arrange a site survey before making your decision
What is the difference between wood burning and multi fuel?
Logs burns best on a flat bed of ash, with air for combustion coming from above. Coal and smokeless fuels burn best on a grate, with air entering from beneath the fire and cinders dropping into an ashpan below. Wood burning models, therefore, have flat fuel beds whilst multi fuel models incorporate grates, but the latter are also designed to allow you to develop a bed of ash upon which to burn logs should you wish.
Logs burns best on a flat bed of ash, with air for combustion coming from above. Coal and smokeless fuels burn best on a grate, with air entering from beneath the fire and cinders dropping into an ashpan below. Wood burning models, therefore, have flat fuel beds whilst multi fuel models incorporate grates, but the latter are also designed to allow you to develop a bed of ash upon which to burn logs should you wish.
How efficient are wood burning and multi fuel stoves?
Today's stoves are more efficient and technically advanced than those manufactured only a few years ago so efficiencies in excess of 75-80% are now possible.
For example, a stove with a net fuel input of 6.5kW and an output rating of 5kW is 77% efficient.
With a very few, particular exceptions, the figures for all Stoves have been independently verified by CE and HETAS approval systems.
Also do not forget that, unlike an open fire or hearth, a stove has airtight doors and a sealed flue so it will not draw heat from other heating sources, such as radiators or electric storage heaters, up the chimney. This means the stove can conserve energy even when it is not lit.
What is airwash?
This is a design feature that uses a specially placed vent or vents to draw in cool air from the room to wash over the inside of the glass during operation. This helps to keep the glass cleaner for longer, allowing you to enjoy the glow and flames to the full.
What is Cleanburn?
Cleanburn is a system by which warm air is introduced into the firebox just above the normal height of the fire.
The effect is to allow the combustion of unburned hydrocarbons in the smoke stream. This, in turn, provides not only a ‘cleaner burn' (i.e. less soot particles going up the chimney/flue and into the atmosphere) but also generates up to twice the heat output from the same amount of fuel. Furthermore, you will enjoy the sight of even more flames.
Can a stove also run my central heating?
Yes. There are stoves which have integrated wraparound boilers which will allow you to produce domestic hot water for baths, showers and radiators as well as heating the room where stove is situated.
Can I connect two stoves to one flue system?
No. All stoves must be individually flued.