Biomass

Biomass Heating

The benefits of wood-fuelled heating:

  • Costs, savings and earnings
  • Choosing a wood-fuelled heating system
  • The benefits of wood-fuelled heating
  • Affordable heating fuel: although the price of wood fuel varies considerably, it is often cheaper than other heating options.
  • Financial support: wood fuel boiler systems could benefit from the Renewable Heat Premium Payment and the Renewable Heat Incentive.
  • A low-carbon option: the carbon dioxide emitted when wood is burned is the same amount that was absorbed over the months and years that the plant was growing. The process is sustainable as long as new plants continue to grow in place of those used for fuel. There are some carbon emissions caused by the cultivation, manufacture and transportation of the fuel, but as long as the fuel is sourced locally, these are much lower than the emissions from fossil fuels.
  • Costs, savings and earnings

Costs

Pellet costs depend mainly on the size and method of delivery. Buying a few bags at a time makes them expensive, we recomend that you buy a large amount of bags and keep them stored in a shed,garage or boiler house etc

If you have room for a large fuel store that will accept several tonnes of pellets at a time, delivered in bulk by tanker, this is also beneficial

Savings

Savings in carbon dioxide emissions are very significant - up to 14.5 tonnes a year when a wood-fuelled boiler replaces a solid (coal) fired system or electric storage heating. Financial savings are more variable - if you replace a older gas heating system with a wood-burning system you might save up to £80 a year, but if you are replacing an old electric heating system you could save as much as £650 per year.

Earnings

You may be able to receive payments for the heat you produce from a wood boiler through the government’s Renewable Heat Incentive (RHI).From August 2011, you may be able to get help with the installation costs of a wood boiler through the Renewable Heat Premium Payment scheme. read more about the scheme here...

Green Deal finance and renewables

This technology is an eligible measure under the UK government’s Green Deal which is a financing mechanism that lets people pay for energy-efficiency improvements through savings on their energy bills.For further information on Green Deal click here..

Maintenance

Wood fuelled boilers should be kept clean and swept regularly to remove ash. Ash quantities are generally very low (<1% of fuel volume), but you will still need to empty the ash bin of the wood boiler. This is likely to be weekly and never more than once a day. Most appliances now particularly boilers have self-cleaning systems built in. A self-cleaning system will collect ash from the combustion grate and the heat exchanger tubes. If there is no automatic ash cleaning mechanism in place the boiler will need to be shut down periodically so that this can be done by hand. If the ash is not cleaned out regularly, it will build up and adversely affect combustion conditions, which can lead to boiler failure and shut down.

If you have a wood burning stove or boiler the chimney and flue pipe must be swept regularly to remove all soot deposits and prevent blockage. HETAS recommend that this “should be done at least twice a year, preferably before the heating season to check that the flue has not been blocked by bird's nests for example and also at the end of the heating season to prevent soot deposits from resting in the chimney during the dormant period”.

Types of Fuel

Wood chips are not suitable for heating a single house, but can be used to heat larger buildings or groups of houses. 

Pellets are much easier to use and much more controllable than logs

Pellet boilers can run automatically in much the same way that gas or oil boilers operate.

Things to consider

  • Do you have a local fuel supplier? - Some companies now offer deliveries of pellets anywhere in mainland Britain and Northern Ireland
  • Do you have space? - Wood boilers are larger than gas or oil equivalents. You will also need space to store the fuel: somewhere that's handy for deliveries but also appropriate for feeding the boiler.
  • Do you have somewhere to put the flue? - You will need a flue which meets the regulations for wood-burning appliances: a new insulated stainless steel flue pipe or an existing chimney - though chimneys normally need lining to make them safe and legal.
  • Do you need permission? - You may not need planning permission, but you should always check. All new wood heating systems have to comply with building regulations, and the best way to ensure this is to use an installer who is a member of a competent person scheme.
  • Do you have a thatched roof? - Read HETAS's advice about building regulations

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If you are interested to find out more about our services for your home or commercial premises, please call us on 01493 857167 or use our websiteenquiry form and we will call you to discuss your requirements.

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