Woodwarm Stoves | FAQ`s
 
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FAQ`s

 

How do I light my stove?                                             Does a canopy affect the heat output in any way? What size hearth do I require?
How do I know if my wood is dry? Should my chimney be lined? How do I purchase spares for my stove?
Why should I burn wood?

Can I buy direct from the factory?

What boilers does the Wildwood range take?
What fuel do you recommend? Where can I find a brochure for your stoves? Do you supply boilers for the double sided stoves?
What air gap should there be around the stove? What refuelling rate is assumed in calculating your outputs? Are the stoves CE approved?
What is considered to be a safe distance from combustable materials? I calculated that i can achieve 13.3kw if i add 30,000btu boilers to my 9kw stove, how does that work?  The brochure mentions the stove is also avaliable with straight sides, what is meant by this?

How do I light my stove?

Lighting the stove

Lay paper and kindling (or firelighters) on the grate with small logs or coals on top.
Open top air inlet and bottom air inlet
Light stove and close door.
When logs start to burn, close the bottom air inlet (on ash pit door) and use only the top air inlet to control the fire.
For some solid fuels it may be necessary to have the bottom air inlet open a fraction all the time and to have the grate cracked open a fraction. 

How do I know if my wood is dry?

If you do not know the history of the wood, then you must assume the wood is wet. Wood naturally dries at a rate of 1 inch per year, so it will take 6 years to dry a 12 inch log, split logs dry at an increased rate. A 12 inch log takes 8 weeks to dry in a kiln to achieve a moisture content of 18% or less.

DO NOT be tempted to dry your logs by the stove - all you are doing is increasing the likely hood of burning down your house. 

DO NOT burn wet wood with solid fuel, as a very aggressive acid is created which is lethal for the stove, chimneys and flues.

 Why should I burn wood?

All fossil fuels (coal, anthracite, brown coal, peat, oil, gas and lpg) emit carbon dioxide when they are burnt. This carbon dioxide increases the greenhouse gases in the atmosphere, which contribute to global climate change. It is, therefore, very important to think about ways of reducing these emissions. This can be done by ensuring that your heating system is efficient, well maintained and incorporates adequate controls. You should also undertake other energy saving measures, such as increasing the insulation of your house. Wood fuel is carbon neutral. It absorbs as much carbon dioxide in its growth as it releases when it is burnt.

The table below shows typical carbon dioxide emissions per week for different principal fuels used in the average house.

ELECTRICITY 130kgs (generated by fossil fuels)
COAL 120kgs
OIL 90kgs
GAS 70kgs
WOOD NIL

Reccomended Solid Fuel For Woodwarm Stoves

A Woodwarm Fireview Multifuel stove will burn coal and some smokeless fuels as well as:

  • Brown coal ‘Lignite' sold as compressed briquettes (Union Briquettes). A European peat-like coal widely used for power generation in Europe, not suitable for smokeless areas, but a good easy fuel.
  • Peat, rarely sold as fuel in England - not suitable for smokeless areas, but useful if you can get it.
  • Naturally smokeless Anthracite - use large nuts and small nuts. The rocky cinders from Anthracite can cause even the best riddling grate problems, but it is a good fuel.
  • Homefire and Homefire Ovals, manufactured smokeless.
    We use this for our testing. It is a good fuel and easy to handle.
  • Housecoal. This is dirty fuel to handle and to burn. It needs to be burnt on a high heat with a good combustion air mix to stop a lot of tar deposits. Clean flueways often, tarry glass will tell you if you are not burning hot enough.
  • Other Fuels. Be aware that cheap solid fuel is likely to be high in petro-coke (coal derived from chemicals). This fuel is likely to be destructive to the structure of the stove.

Always burn dry Fuel.

Always de-ash frequently (twice a day). However, if you have any queries consult your Approved Coal Merchant Scheme member for further types and availability. The Solid Fuel Association helpline will give it to you - Tel No 0845 6014406

Fireview stoves are suitable for use in a Smoke Control area so long as you burn a smokeless broad based long flame fuel.

Do experiment to find the best one for you, or mix them if you wish, however NEVER burn wet wood with solid fuel as a very aggressive acid is created which is lethal for the stove, chimneys and flues.

What air gap should there be around the stove and the top?

150mm to sides & rear, 300mm above; it is important to have a good air gap around the stove to aide with the natural convection generated by the stove, it will also be useful when installing or servicing the stove.

What is considered to be a safe distance from combustible materials?

400mm around the stove would be advised as a minimal distance to combustibles such as log baskets and wooden furniture.  Also please remember that document J Building Regulations for flue pipes states that combustibles should be kept to a minimum of 3 times the diameter of the flue or 1.5 times the diameter of the flue with a heat shield and 12mm air gap.

Does a canopy affect the heat output in any way?

There is slightly more output because of the increased surface area of the canopy compared to a flat top.

Should the chimney be lined?

Document J Building Regulations says that a chimney doesn't have to be lined as long as it is sound and is suitable for its intended use.

However, if there is any doubt about the integrity of the chimney, line it, Carbon Monoxide (CO) poisoning was accredited to 20 deaths in 2007/08 (source HSE). 

Can I buy direct from the factory?

Sorry no, we rely heavily on the expertise of our retail agents to help you with your choice; your agent would be your first point of call for any technical, installation, or spares quires.  Please see our dealer locator for your nearest stockist.

Where can I find a brochure for your stoves?

You can email us (see the 'Contact Us' at the top of the screen) and we will send one direct to you, ask for one at your nearest stockist or see the downloadable PDF version on the home page of this website.

What refuelling rate is assumed in calculating your outputs?

As an example, on the 6kw 1.5 hours was deemed to be the optimal refuelling rate to achieve 79.9% efficiency when tested.

I calculated that I can achieve 13.3kw if i add 30,000btu boilers to my 9kw stove, how does that work? 

It is more efficient to heat water than air, this applies a similar principle to that of an old electric oil heater where the oil cools down at a much slower rate to air, water although not as viscous will also hold heat for a long period of time, 

What size hearth do I require?

Hearth projection should be at least 300mm in front and 150mm to sides and to the rear, if there is enough room go 50mm beyond swing of door. Document J recommends a minimum of 225mm front hearth projection on a closed appliance.

How do I purchase spares for the stove?

You can buy them through your nearest stockist, use the dealer locator on the home page or contact us direct at the factory and we can guide you to your nearest stockist.

What boilers does the Wildwood range take?

The Wildwood range are basically the same as the Fireview range, both enjoying all the benefits of clean burning technology, the major difference being that the Fireview range has an ashpit and a riddling grate therefore they both take the same boilers.

Do you supply boilers for the double sided stoves?

We only supply boilers for double sided stoves above 6kw.  The boiler would be between 8,000 - 20,000 btu`s depending on the size of the stove. 

Are the stoves CE approved? 

We are in the process of obtaining this. The 6kw Fireview was 79.9% efficient and the 9kw was 78.5% efficient when tested.

The brochure mentions the stove is also available with straight sides. What is meant by this?

The base width increases to the same as the firebox so that the width is constant throughout the height of the stove, as we hand build every stove we are able to alter the design to customer requirements and this seems to be one of the most common alterations.