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These standard, oil free smoke pellets burn for 40 seconds and give off approximately 18m³ of non acidic smoke, which will indicate any signs of spillage or compromised integrity. Carrying out smoke tests is a requirement of the Gas Safety Regulations.
Flue flow, flue pull, chimney integrity etc are all very important when it comes to removing products of combustion, and most importantly Carbon Monoxide from boilers, gas fires and chimneys etc.
