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Firewood suppliers for the

Surrey & Hampshire borders.

STOVE

The importance of moisture content.

The moisture content of wood has, by far, the biggest effect on how much heat is released during burning. Any moisture in the wood has to boil away before the wood can burn. This has the effect of regulating the speed at which the wood burns but also reduces the amount of energy available to be released as useful heat.

 

Burning logs that aren’t dry enough will create lots of tars and smoke. These tars can corrode the flue and build up to such a degree that they may catch fire. Logs that are too wet will also cause the glass in stoves to blacken.

 

It is important that the moisture content of logs is both high enough to prevent them burning too quickly and low enough to cause them to burn cleanly and energy-efficiently.

 

The optimum moisture content for firewood logs is 15-20%.

 

All Wild Wood logs have a moisture content of 15-20%.

Kiln dried v seasoned logs.

Seasoned logs

 

The traditional method of reducing the moisture in wood is to stack it and allow it to air-dry. This is called “seasoning”. It can take up to two years and uses a lot of space. As the demand for firewood logs increases this method of drying is becoming less practical year on year.

 

Seasoned wood will only dry down to a certain moisture content and can carry moulds, spores and insects into the home.

 

Kiln dried logs

 

During kiln-drying logs are subjected to high temperatures and increased air-flow hence the moisture content of kiln-dried logs can be reduced to a much lower level than that of seasoned logs.

 

Kiln drying only takes a few days and moulds, spores and insects do not survive the process. This means that kiln dried logs are much cleaner for bringing into the home.

 

All Wild Wood logs are kiln-dried to a moisture content of 15-20%.

Which kind of wood is the best for burning?

Alder - Poor

Produces poor heat output and doesn’t last well.

 

Apple – Good

A slow, steady burner with a nice scent and a small flame that does not spit or spark.

 

Ash – Excellent

Steady flame, very good heat output. One of the best woods for burning.

Approved by Wild Wood Logs.

 

Beech – Excellent

Like Ash, a steady flame and good heat output. One of the best woods for burning.

Approved by Wild Wood Logs.

 

Birch – Good

Good heat output but burns a little too quickly.

 

Cedar – Medium

Consistent, long heat output but can spit and the sap can cause flue deposits.

 

Cherry – Good

A slow-burning wood that produces good heat output and a pleasant scent.

 

Chestnut – Poor

A small flame and poor heat output.

 

Firs (Douglas etc.) – Poor

A small flame and poor heat output. The sap can cause flue deposits.

 

Elm – Medium

Can be difficult to light. Medium burning qualities.

 

Eucalyptus – Poor

Burns too quickly and the sap can cause flue deposits.

 

Hawthorne – Very good

Slow burn with good heat output.

 

Hazel – Good

Good heat output but slightly too quick to burn.

 

Holly – Poor

A good flame but too quick to burn and a poor heat output.

 

Hornbeam – Good

Burns in a similar way to Beech. Slow burn with a good heat output.

 

Horse Chestnut – Good (For stoves only)

A good burner with good heat output but can spit and, therefore, best for stoves.

 

Laburnum – Poor

Very smoky, poor burn.

 

Larch – Medium

Not a bad burner but the sap can cause deposits in the flue.

 

Laurel – Medium

Burns with a good flame and reasonable heat output.

 

Lilac – Good

Burns with a good flame. The smaller branches make good kindling.

 

Maple – Good

A good flame and heat output.

 

Oak – Excellent

A very dense wood that burns slowly but with a good flame. One of the best woods for burning.

Approved by Wild Wood Logs.

 

Pear – Good

Burns well with good heat output.

 

Pine – Good

Burns well with a good flame but the sap can cause flue deposits and a risk of fire.

 

Plum – Good

A good burner with good flame and heat output.

 

Poplar – Poor

Very smoky with a poor burn.

 

Rowan – Very Good

Burns slowly and well with good heat output.

 

Robinia (Acacia) – Good (for stoves)

Burns slowly and well with good heat output. Produces an acrid smell so only for stoves.

 

Spruce – Poor

Quick-burning with a low heat output.

 

Sycamore – Medium

A good flame but with only a moderate heat output.

 

Sweet Chestnut – Medium (stoves only)

Burns reasonably well with a reasonable heat output but it can spit so isn’t suitable for open fires.

 

Thorn – Very good

A steady flame with good heat output and very little smoke.

 

Willow – Poor

A poor firewood that does not burn well.

 

Yew – Very good

A good, slow burner with good heat output.

 

Wild Wood Logs only supply Ash, Beech and Oak logs rated “Excellent” for burning.

 

 

 

 

 

 

 

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