What are two points of data collected during combustion safety inspection testing?

During a combustion safety inspection, CO (carbon monoxide) testing and spillage are critical points of data collected to ensure safe operation of combustion appliances. Carbon monoxide is a colorless, odorless gas that can be harmful or fatal in high concentrations. Testing for CO is essential to verify that appliances are not leaking harmful gases into the living environment.

Spillage refers to the examination of combustion products that may escape from the appliance flue or venting system during operation. It is crucial to assess whether the combustion byproducts are being safely exhausted outside or if they're spilling back into the home, which can pose significant health risks.

Both CO testing and spillage assessments are necessary to understand the safety and efficiency of combustion appliances, ensuring that they are operating safely and protecting occupants from potential hazards associated with incomplete combustion. Other choices, while relevant to building analysis, do not specifically address the immediate safety concerns associated with combustion appliances.