Thus, assurance about the consistent, reliable standards of the fuel quality supplied must be a priority consideration for biomass boiler operators.

Adherence to recognised standards
In recognition of this essential requirement, Westwoods adhere to stringent quality control procedures, in accordance with recognised standards, to ensure that fuel of the correct specification is delivered to fulfil each of the contracts. CEN (Comite Europeen de Nomalisation) - the European committee for standardisation - has produced around 30 draft standards which are now the de facto standards for the UK.

Stringent quality monitoring procedures
Westwoods provides a fuel quality monitoring service, together with ongoing advice and information on woodfuel specifications.

Once a contract is completed using Westwoods as the broker we stipulate that a sample is taken from each delivery made, to assist with quality control and dispute resolution. The delivery sample is retained in a labelled, airtight container. This is tested using a simple oven test to calculate the moisture content on a wet basis.

In the event that a problem arises with the boiler that could be attributed to fuel quality then the delivery sample is tested for moisture content, chip size, bark content and the presence of any contamination such as stones, metal or dust.

Security & confidence
To add security and confidence to potential consumers, a bond can be taken by Westwoods. This bond will only be used if the producer fails to deliver fuel according to the terms of the contract, at which point this money will be used to facilitate the supply of fuel to the consumer from another member. The bond is fully refundable when the contract expires.

See also: Woodchip fuel