For safety reasons, how should vent hoods be positioned relative to snow levels?

Positioning vent hoods above snow level is crucial for ensuring proper ventilation and safety in heating systems. When vent hoods are located at or below snow level, they can become obstructed by accumulated snow, which can lead to the buildup of harmful gases such as carbon monoxide within the dwelling. This obstruction can also create pressure imbalances in the heating system, causing efficiency issues and potential operational hazards.

By placing vent hoods above snow level, technicians help maintain clear pathways for the venting of exhaust gases, preventing any risk of blockage and ensuring that the system functions safely and efficiently throughout the winter months. This positioning is an important practice to promote both the safety of the occupants and the effective operation of the oil heating system.