What safety device is commonly used to prevent gas leaks in a furnace?

The gas leak detector is a critical safety device utilized to prevent gas leaks in a furnace. This device continuously monitors the surroundings for any signs of gas leaks, which can be very dangerous and lead to hazards such as explosions or asphyxiation. When the detector senses gas, it typically triggers an alarm to alert occupants and may initiate safety measures such as shutting off the gas supply, thereby preventing further risk.

The importance of a gas leak detector cannot be overstated, as it provides a proactive measure for ensuring safety in environments where gas appliances are used. Regular maintenance and testing of gas leak detectors are essential to ensure they are functioning properly and can effectively perform their safety functions when needed.