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9.21.3.3.(2) | Application | Intent |
| OH1 | OP1 | OS3 | OS1 | OS2 |
| Objective | OH1 Indoor Conditions |
| Attribution | |
| Application | Application 1: Minimum thickness and heat resistance of clay flue liners for rectangular masonry
or concrete chimneys that are not more than 12 m in height
and that serve fireplaces or appliances having
a combined total rated heat output of 120 kW or less, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9]. Application 2: This also applies to rectangular masonry
or concrete chimneys, in buildings to which
Part 6 applies [see Sentence 1.3.3.2.(1) of Division A for application
of Part 6], as stated in Sentence 6.3.1.2.(1). |
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| Intent | Intent 1: To limit the probability that:
This is to limit the probability of the spillage
of combustion products into living space, which could lead to negative effects
on the air quality of indoor spaces, which could lead to harm to persons.
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