What is the proper action if a gas regulator has no vent limiter installed?

Installing a gas regulator without a vent limiter poses significant safety concerns, as the absence of a vent could lead to over-pressurization or an unsafe gas buildup. By piping the vent to the exterior and capping it, you ensure that any gas vented will safely disperse into the atmosphere rather than accumulating within the confined space. This action maintains a proper and safe venting pathway, thereby reducing the risk of gas-related hazards, such as leaks or explosions caused by venting gas inappropriately.

Other approaches, such as installing a new regulator or leaving the regulator as is, do not adequately address the safety issue presented by the lack of a vent limiter. Simply taping the regulator could compromise the integrity of the system and is not an effective solution for gas safety. Therefore, piping it to the exterior and capping it is the safest and most responsible action to take.