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9.32.3.13.(5) | Application | Intent |
| OH1 |
| Objective | OH1 Indoor Conditions |
| Attribution | |
| Application | Application 1: Minimum vertical distance from the bottom of exhaust
outlets to:
This applies to self-contained heating-season
mechanical ventilation systems serving single dwelling
units with 5 or fewer bedrooms that are supplied with electrical power
and a heating system, in buildings to which:
Exceptions:
except as stated in Sentence 9.32.3.1.(1), which applies to
heating-season mechanical ventilation systems designed to comply with CAN/CSA-F326-M.
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| Intent | Intent 1: To limit the probability of insufficient vertical clearance,
which could lead to the blockage of exhaust openings by vegetation, earth
or debris, which could lead to inadequate exhaust airflow, which could lead
to excessive positive pressure in dwelling units, which could lead to:
This is to limit the probability of the generation
of pollutants from biological growth or from materials that become unstable
on wetting, which could lead to negative effects on the air quality of indoor
spaces, which could lead to harm to persons.
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