Chimney safety

Here are some top tips for safer chimneys:
  • Keep chimneys and flues clean and well maintained.
  • Make sure embers are properly put out before you leave the premises.
  • Always use a fire guard to protect against flying sparks from hot embers.
  • Chimneys must be swept on a regular basis, this can be as much as three times in the burning season (winter) but at least once per season regardless of fuel type.
  • All wood burned must have a moisture content of no more than 17%.
  • It is important to purchase the correct size appliance for your premises, an appliance that is too large will never be used hot enough to volatize all of the fuel within the wood and unburned fuel will pass up the chimney as smoke and condense within the flue as extremely flammable creosote.
This is how often a chimney should be cleaned based off your fuel source:
  • Oil - Once a year
  • Gas - Once a year
  • Bituminous coal - Twice a year
  • Wood - Up to four times a year
  • Smokeless coals - At least once a year
All chimneys and flue-ways should be cleaned and checked during the summer months to ensure they are free from debris and in full working order before the heating season. A blocked or defective chimney can cause both chimney fires and Carbon Monoxide poisonings so it is important to employ a professional qualified chimney sweep such as those certified by NACS.

Last updated: Friday 14 May 2021