Literature British Flue and Chimney Manufacturers Association A Designers Guide to Specifying Chimneys or Flues for use with Secondary Heating In New Dwellings. This paper uses an example house to show the effects that different natural draught secondary heating set-ups can have on the overall CO2 emissions of a design.

Warm to Document L with a Choice of Carbon Efficient Heating Appliances • Opt for an open or glass fronted appliance • Gain carbon credits • Save on other construction elements • Add to sales appeal

Specifying Secondary Heating and Chimneys in Accordance with Document L • Guidance for Approved Document L1A • Advice on how to minimise carbon emissions • Choosing the right appliance • Specifying the appropriate chimney