How to Light a Furnace Pilot Light: 1 Minute to a Warm Home: A Quick GuideSarah ThompsonSep 08, 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 task many homeowners face, especially as colder months approach and heating systems are fired up after a period of dormancy. Before you start, always check your furnace's manual for model-specific instructions and safety warnings. Typically, you’ll find the pilot light near the bottom of the furnace, accompanied by a reset knob, on/off switch, and sometimes a small viewing window. First, turn the thermostat to its lowest setting and ensure the furnace is switched off. Wait several minutes to clear any residual gas, reducing the risk of ignition mishaps. Once safe, turn the gas control knob to the "pilot" position. Press and hold the knob while using a long-reach lighter or match to ignite the pilot. Continue holding for around 30 seconds before releasing—this helps the thermocouple sense the flame and maintain gas flow. Finally, switch the control knob to "on" and set your thermostat to the desired temperature. Always check that the pilot is burning a steady blue flame and never force any components.Tips 1:As a designer, I’ve found that proper mechanical and utility access is crucial—not only for service but also for safety. If you’re planning any renovations or updates, consider integrating utility access into your home’s layout for easier furnace maintenance and a more harmonious interior space.FAQQ: Where is the furnace pilot light typically found?A: It’s usually located near the base of the furnace, close to the gas valve assembly and burner.Q: What do I do if the pilot light won’t stay lit?A: The thermocouple could be faulty or dirty, or there might be a draft. If cleaning or repositioning doesn’t help, consult a professional.Q: Is it safe to light the pilot if I smell gas?A: No—ventilate the area, turn off the gas, and call your utility provider immediately.Q: How often should a furnace’s pilot light be checked?A: Inspect it each season before use to ensure efficient and safe operation.Q: Can I convert a pilot light to electronic ignition?A: In many cases, yes—a professional HVAC technician can assess your system and recommend the best upgrade path.Home Design for FreePlease check with customer service before testing new feature.