What safety precaution should be taken when installing appliances that use gas?

Ensuring proper ventilation to avoid the buildup of carbon monoxide is crucial when installing gas appliances. Gas appliances, when operated, can produce carbon monoxide – a colorless, odorless gas that can be deadly in high concentrations. Proper ventilation allows for fresh air to circulate, helping to minimize the risk of carbon monoxide accumulation and ensuring that any combustion gases generated by the appliance can disperse safely. This is a fundamental safety measure that falls in line with building codes and manufacturer recommendations, aimed at protecting the health of the occupants in the space where the appliance is used.

While the other options may contribute to a safe installation environment in their own ways, they do not directly address the critical risk associated with gas appliances, which is the potential for carbon monoxide poisoning. Keeping a good flow of air in the installation area is paramount for safety when working with appliances that use gas.