How to Light a Furnace Pilot Light Safely: 1 Minute to Safely Ignite Your Furnace Pilot LightSarah ThompsonSep 06, 2025Table of ContentsTips 1:FAQTable of ContentsTips 1FAQFree Smart Home PlannerAI-Powered smart home design software 2025Home Design for FreeLighting a furnace pilot light is a straightforward process, yet it demands attention to safety and detail to avoid hazards. Whether you're facing a sudden heat loss or maintaining an older furnace model, following precise steps ensures efficient operation and peace of mind. Here’s a step-by-step guide on how to safely light your furnace pilot light:Turn Off the Furnace: Before you begin, turn the furnace's thermostat to its lowest setting and shut off the power at the breaker or the main switch. This prevents accidental ignition or electrical issues.Wait for Gas to Dissipate: If your furnace has been on recently or you attempted to light the pilot, wait at least five minutes to let any gas in the area dissipate, reducing the risk of fire.Locate the Pilot Light Assembly: Typically, the pilot light is located near the bottom of the furnace, underneath the main burners. The assembly includes a gas valve, ignition button, and sometimes clearly marked instructions.Switch the Valve to 'Pilot': Turn the gas control knob to the "pilot" position. This setting allows gas to flow only to the pilot light.Press and Hold the 'Pilot' Button: While pressing the button (or holding the knob in), use a long lighter or match to ignite the pilot light. Continue holding the button for about 30-60 seconds to warm up the thermocouple, ensuring the pilot stays lit.Release and Observe: Release the button slowly. If the pilot stays lit, you're successful. If it goes out, repeat the process, making sure to wait before trying again.Turn the Furnace Back On: Once the pilot light stays lit, switch the gas control knob to "on," restore power, and reset your thermostat.As a designer, I find that even safety procedures in your home can benefit from better systems and visualization. For example, clear layout planning and equipment labeling can ensure everyone knows where crucial elements like the furnace or pilot light assembly are located. Thoughtful design doesn’t just make a space more beautiful—it also makes it safer and more user-friendly.Tips 1:Always keep the furnace area clean and free of clutter to allow safe, easy access for regular maintenance and emergencies. Label key utility areas during home renovations to make finding them simple for anyone.FAQQ: How do I know if my furnace has a pilot light?A: Older furnaces often have a pilot light, while modern models use electronic ignition. Check your owner’s manual or look for a viewing window near the burner's base.Q: Why won't my pilot light stay lit?A: Common reasons include a dirty pilot orifice, faulty thermocouple, or insufficient gas flow. Cleaning and, if necessary, professional inspection may be needed.Q: Is it safe to relight a pilot light myself?A: Yes, if you follow instructions carefully and don’t smell gas. If you detect a strong gas odor, evacuate and contact a professional immediately.Q: What tools do I need to light a pilot light?A: Usually, you only need a long match or lighter. No special tools are required unless you’re performing further maintenance.Q: Should I turn off the furnace if I'm leaving for an extended period?A: Yes, turning off the furnace is advisable for safety and energy savings, especially if no one will be home for a while.Home Design for FreePlease check with customer service before testing new feature.