AK HVAC Practice Questions - Alaska Mechanical Administrator HVAC License Exam

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What special consideration must Alaska HVAC contractors account for when sizing combustion air openings in extremely cold climates?

Combustion air requirements are the same regardless of climate Extremely cold outdoor air is denser, which must be factored into combustion air calculations, and frost prevention at openings is critical Less combustion air is needed in cold climates Only indoor air should be used for combustion in Alaska

Correct Answer:

Extremely cold outdoor air is denser, which must be factored into combustion air calculations, and frost prevention at openings is critical

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