Installation of a propane tank under 1000 USWG, what would be the minimum distance from a regulator to a building opening?

In the context of propane tank installation, maintaining safe distances between various components and building structures is essential for ensuring safety and minimizing risk of fire or explosion. The correct answer, a minimum distance of 3 feet from a regulator to a building opening, is derived from safety standards that aim to mitigate the chance of gas accumulation near exits or openings where it could enter a building.

Regulators are components that help control the pressure of propane gas delivered from the tank, and nearby openings such as doors, windows, or ventilation systems can provide pathways for gas to enter an enclosed space. Having a minimum distance of 3 feet ensures that if there is any leakage at the regulator, it is less likely to affect the areas where people may enter or exit, enhancing safety.

Other distances mentioned in the other options are typically greater than what is prescribed for these installations. This reflects practices more suited for specific scenarios or different components, but for a regulator, the 3-foot guideline is sufficient to ensure safety while allowing for practicality in installation parameters.