Final answer:
To utilize HVAC vents to run network lines, you must use plenum-rated cabling, which is specifically designed for installation in spaces where air handling is required.
Step-by-step explanation:
If you want to utilize the HVAC vents to run network lines, you would need to use plenum-rated cabling. Plenum-rated cables are specifically designed to be installed in spaces where air handling is required, such as HVAC vents. The plenum rating indicates that the cables are made with materials that emit minimal smoke and do not propagate flames, which is important for fire safety. Using regular cabling in HVAC vents could pose a fire hazard due to the high temperatures and potential exposure to flames. Plenum-rated cables are made with insulation and jacketing materials that are specifically designed to meet fire safety requirements. They are typically more expensive than regular cables, but they are necessary for installations in air handling spaces. In summary, if you want to run network lines through HVAC vents, make sure to use plenum-rated cabling to ensure fire safety and comply with building codes.