G2 Gas Fitter Practice Exam 2025 - Free Gas Fitter Practice Questions and Study Guide

The Ontario Natural Gas Utilization Code serves as a framework that regulates the installation of gas appliances to ensure safety and compliance with operational standards. Its primary focus is on the specific requirements and processes that must be followed when installing gas appliances, making sure that these installations are conducted properly to prevent hazards such as leaks, explosions, or inefficient operation.

While the other options, such as ventilation requirements, pipe sizing, and safety training, are important aspects related to gas appliance installation, they fall under the broader guidelines and regulatory framework established by the code. The code encompasses various specifics, including the safe installation processes and methods for different types of gas appliances, ensuring that installers meet consistent industry standards. This emphasis on regulation directly correlates with ensuring that all installations adhere to safety, operational, and environmental requirements.

Thus, the focus of the Ontario Natural Gas Utilization Code is fundamentally on the regulation of gas appliance installation itself, which is reflected in the chosen answer.