Final answer:
In case of conflict, manufacturer's instructions should typically be followed, provided they are more stringent or specific. Always consider regional codes, which may take precedence, and consulting a third party can ensure compliance and safety.
Step-by-step explanation:
When there is a conflict between a manufacturer's certified instructions and the CSA B149.1 Natural Gas and Propane installation code, it is standard practice to follow the manufacturer's instructions provided that they are more stringent or specific. This is because the manufacturer's guidelines are tailored for the safe and efficient operation of their specific equipment. However, it is crucial to also consider the codes and regulations that are applicable in your region since they have legal authority. If unsure, consulting an independent third party such as a licensed professional engineer experienced in the field can provide clarification and ensure compliance. Local codes may also have precedence over the national codes if they are more stringent.
Propane's use in remote locations underscores the importance of proper installation and adherence to the relevant codes and manufacturer instructions to ensure safety and reliability, given the lack of infrastructure for natural gas in such areas.