Ignite Your Career: 2025 Gas Fitter Challenge – Fuel Up for Success!

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What is the term for the process through which air enters a house?

Infiltration

Infiltration is the correct term for the process through which air enters a house. This typically occurs through unintentional or natural pathways, such as gaps and cracks in the building's exterior, around windows, doors, and other openings. Understanding infiltration is crucial for gas fitters and HVAC professionals because it impacts indoor air quality, energy efficiency, and overall heating and cooling loads in a building.

This process is significant in building science, as it helps with ventilation and can affect moisture levels, which in turn influences mold growth and structural integrity. Proper sealing and insulation are often measures taken to control infiltration, ensuring that the building is energy-efficient while still allowing for necessary ventilation.

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