Residential HVAC Installation Practice Exam

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What term is used to describe the area of a wall before any doors or windows are cut into it?

Net Wall Area

Gross Wall Area

The term used to describe the area of a wall before any doors or windows are cut into it is called the Gross Wall Area. This term refers to the overall surface area of the wall without any subtractions for openings such as doors or windows. This is important to know in HVAC installation to ensure proper sizing of equipment and placement of vents or ductwork. Therefore, option B is the correct answer in this case.

Total Wall Area

Initial Wall Area

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