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What Color Should My Furnace Flame Be?

by VitalStorm Content on December 6, 2018

what color should your furnace flame be

Have you ever looked closely at the pilot light on your furnace? You might expect the flame to be a traditional yellow or orange color. It might surprise you to learn that this is not the ideal flame color for your furnace at all.

We named our company Blue Flame for a reason. If you have found yourself wondering “What color should my furnace flame be?”, after taking a peek at the pilot light, we can help you better understand this piece of heating technology. Here are some answers to a few common questions about gas furnaces from our team of professionally certified HVAC technicians.

What Color Should My Furnace Flame Be?

The simple answer to this question is: blue. Methane is the natural gas inside your furnace heating your home. It should always emit a blue color when it is combined with the correct amount of oxygen. Sometimes you may see a flicker of red or yellow, but the primary color should always be blue.

Why Is My Pilot Light Flame Yellow?

There are a few reasons why your furnace flame might look yellow, orange, red, green, or purple instead of pure blue. One of the most common causes is that the air intake valve for your pilot light has clogged up with dirt or some other material. If rust, oil, or tar combusts and burns along with your methane gas, it is detrimental to your furnace and can even endanger your health. If you see your pilot light burning any color besides blue, call an HVAC professional right away.

How Can I Fix My Pilot Light Flame?

This is one home project you might not want to DIY. Your intake valve may need to be cleaned professionally, or your pilot light and thermocouple may need to be adjusted delicately. If you notice anything suspicious about your furnace flame, don’t risk damaging expensive technology by trying to do a quick fix at home. A NATE-certified HVAC technician can examine your pilot light and determine how to return the color to blue right away.

How Can I Prevent Problems with My Furnace Flame?

The best way to ensure your family isn’t exposed to any burning chemicals is to have routine maintenance on your furnace before each winter season. An HVAC technician will clean and lubricate all of the components inside your furnace during this service, and he will notice potential problems before they become dangerous.

If you need expert help with your furnace flame, call us today.

Our technicians at Blue Flame can help you achieve the ideal balance of oxygen and methane gas burning inside your furnace. If you need any heating repairs in or around Mountlake Terrace, WA, call us today for on-time service you can trust.

At Blue Flame, we are committed to an exceptional and eco-friendly experience every time you use our heating, air conditioning, and electrical services. Call us at (206) 388-5667 and speak to a member of our team.