What safety features should a gas water heater have?

A gas water heater must be equipped with safety features that ensure safe operation and prevent hazardous situations. The presence of a temperature and pressure relief valve is essential as it helps to prevent excessive pressure buildup in the tank, which could lead to explosions if not properly managed. This valve automatically opens to release water and reduce pressure when it reaches unsafe levels.

Additionally, combustion air intake safeguards are critical. These ensure that there is adequate air supply for the combustion process and help prevent the accumulation of harmful gases, such as carbon monoxide, which can occur if ventilation is inadequate. Proper combustion air intake and venting are essential for the safety and efficiency of gas appliances.

While features like an automatic lighting system, interior insulation, and water filtration systems can be beneficial, they do not directly address the safety risks associated with gas water heaters as effectively as temperature and pressure relief valves and combustion air intake safeguards. Therefore, the option highlighting these specific safety measures emphasizes the importance of risk management in the operation of gas water heaters.