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9.33.6.12.(7)
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Application
Application 1: 
Calculating design heat loss for basements and heated crawl spaces that are served by heating systems in which the rated heat input does not exceed 120 kW and serving only one dwelling unit, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
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Intent
Intent 1: 
To clarify that heat gained by radiation from duct and plenum surfaces is permitted to, in effect, reduce the heat loss used to calculate the size of supply ducts and location of outlets.
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