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Chimney Sweep and Stove Installation

Logs as fuel

Logs are a versatile fuel which if burned efficiently produce virtually no smoke. They are a renewable, sustainable energy source and considered carbon neutral as the carbon dioxide they produce during burning is no more than the carbon dioxide they absorb during growth.

Types of log

There are 2 types of log - hardwoods and softwoods. Hardwood tends to be denser than softwood and will therefore burn for longer. Softwoods are easy to light and burn quickly which make them good for starting a fire.

Moisture Content

Logs need to be dry for effective burning. The moisture content of a log has the biggest impact on the heat output. Water has to boil away before the wood will burn which makes a moist or ‘unseasoned’ log difficult to light and burn. Burning wet wood will produce steam, less heat, chimney problems and pollution. If you do manage to light an unseasoned log it will produce a fire that smoulders and creates lots of tar and smoke. The tars can be corrosive, damage the lining of the chimney or flue and increase the chance of a chimney fire. They are also more likely to cause the glass in your stove to blacken (even in stoves designed to keep glass clean).

How to tell if a log is seasoned

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