What action should be taken if gas leaks are detected in a heating system?

If gas leaks are detected in a heating system, the most appropriate action is to leave the area and call a professional immediately. This response prioritizes safety, as natural gas leaks can pose significant health risks, including fire hazards or the potential for explosions. Professional technicians have the proper training, tools, and experience to assess and repair gas leaks safely.

Attempting to repair the leak on your own can be extremely dangerous, as lacking the expertise could lead to exacerbating the situation. Similarly, increasing the furnace's efficiency setting or switching off the thermostat does not address the immediate risk posed by the gas leak and could allow the situation to worsen. Therefore, evacuating the area and contacting a trained professional is the safest and most responsible action to take in the event of a detected gas leak.