Where is My Furnace Pilot Light?: 1 Minute to Locate Your Furnace Pilot Light Easily

If your home's heating system runs on an older gas furnace, you may need to locate the pilot light at some point—especially if your furnace isn't igniting properly. Most pilot lights are situated near the bottom of the furnace, behind an access panel. To find it, first ensure your furnace is turned off. Then, remove or open the front panel. Inside, look for a small metal tube leading to a nozzle; this is where the small, blue flame (the pilot) should be burning. In most standard furnaces, the pilot assembly is located near the burners in the lower compartment. If you have trouble spotting it, consult your furnace’s user manual for a diagram specific to your model. For newer furnaces (high-efficiency), you may not have a physical pilot light at all; instead, these use electronic ignition.

Tips 1:

As a designer, I always recommend ensuring that your functional zones—like where the furnace is located—are accessible for regular maintenance and safety. When designing utility rooms or mechanical closets, allow ample room for a technician to work safely and see the furnace pilot clearly. If you're working on a renovation, taking advantage of tools like a 3D floor planner can help you visualize equipment placements, maintenance clearances, and optimize traffic flow for comfort and safety.

FAQ

Q: What does a furnace pilot light look like?

A: It’s a small blue flame, typically near the burners at the base of the furnace.

Q: Do all furnaces have pilot lights?

A: No, many modern furnaces use electronic ignition instead of standing pilot lights.

Q: How do I know if my pilot light is out?

A: If your furnace isn’t producing heat and there’s no visible flame, your pilot may be out.

Q: Is it safe to relight the pilot light myself?

A: If you follow your furnace’s manual carefully and smell no gas, it’s generally safe. When in doubt, call a professional.

Q: Why does my pilot light keep going out?

A: Causes include a faulty thermocouple, dirty pilot orifice, or drafts—having a technician inspect is best.