9.21.2.3.(1)

Objective

OS3 Safety in Use

Attribution

Intent

Intent 1:

To limit the probability that an excessively long, non-vertical run in the length of a flue will contribute to the cooling of flue gases, which could lead to an inadequate draft, which could lead to the spillage of combustion products, which could lead to the leakage of carbon monoxide gas into living space, which could lead to the acute poisoning or asphyxiation of persons.

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