How to Safely Light a Furnace Pilot Light: 1 Minute Guide to Igniting Your Furnace Pilot Light

Lighting a furnace pilot light is a straightforward process, but safety is critical—especially if you’re working with natural gas or propane. First, locate your furnace’s service panel and identify the pilot light assembly, often found near the gas valve. Turn the furnace’s thermostat to the lowest setting. Next, switch the furnace control knob to “off” and wait at least five minutes to ensure any residual gas dissipates. Set the knob to “pilot” and hold it down; this releases gas to the pilot. While holding, use a long match or lighter to ignite the pilot flame as directed by your manufacturer. Continue holding for about 30 seconds; then release slowly. If the flame stays lit, set the knob to “on” and restore the thermostat. If it goes out, repeat the process or consult a professional.

Tips 1:

As a designer, I always think of user safety and ease of maintenance when planning mechanical room layouts. Having clear access to your furnace and incorporating simple labeling can reduce anxiety and prevent issues when it’s time to light the pilot—or conduct routine maintenance. For those redesigning or planning a utility space, using a dedicated room planner can help you visualize convenient furnace placement alongside clear safety zones.

FAQ

Q: Should I turn off the furnace before lighting the pilot light?

A: Yes, always turn off the furnace at the control knob and wait at least five minutes to avoid igniting any lingering gas.

Q: What if I smell gas while trying to light the pilot?

A: Stop immediately, ventilate the area, and call your gas company. Never attempt to light the pilot when you smell gas.

Q: How do I know if my furnace uses a pilot light?

A: Check your furnace manual or look for a small access panel near the gas control valve. Some furnaces use electronic ignition instead.

Q: Why does my pilot light keep going out?

A: Common causes include a faulty thermocouple, dirty pilot opening, or drafty location. Consult a professional for persistent issues.

Q: Can I relight the pilot myself if I’ve never done it before?

A: Yes, but follow the manufacturer’s instructions carefully. If in doubt, consult a licensed HVAC technician for safety.