Supertherm Smokeless Coal 20kg

Supertherm Smokeless Coal 20kg


  • Supertherm coal is a premium smokeless fuel.
  • Burns for 40% longer than ordinary house coal.
  • Produces 80% less smoke and 25% less CO2 than house coal, and leaves little ash behind.
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Supertherm Coal is a premium smokeless fuel and the number one choice for thousands of homeowners across the UK. This 20kg bag is filled with large briquettes which provide a long lasting, strong heat output with minimal smoke. This coal can be used on open fires, multi-fuel stoves and cookers. 


We offer FREE DELIVERY on orders over £80 to all of Northamptonshire as well as large areas of Warwickshire, Oxfordshire, Leicestershire, Buckinghamshire and Bedfordshire.

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If you need your logs urgently we have a Guaranteed Next Day Delivery option at the checkout for £40. This only applies to the next working day meaning weekends and bank holidays are excluded.

Nene Valley Firewood are proud to supply logs that are:

  • Approved by the Woodsure ‘Ready to Burn’ Scheme.
  • Kiln-dried using renewable energy to below 18% moisture for a clean and efficient burn.
  • Sourced from sustainably managed Woodlands

    The timber typically comes from managed forests, woodland management schemes and infrastructure maintenance projects. All of our logs are processed, kiln-dried, cleaned (to remove bark and woodchips) and graded by our own Nene Valley Team to make sure you receive only the best quality logs.


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