Orange County
(714) 843-9944

Long Beach
(562) 595-5122

Los Angeles
(310) 377-8163

Orange County
(714) 843-9944

Long Beach
(562) 595-5122

Los Angeles
(310) 377-8163

Founder: Steve Lovsteen

What Causes Soot Buildup in a Gas Fireplace?

People install gas fireplaces because they’re more efficient and require less maintenance than wood-burning fireplaces, but they’re not without problems. Soot buildup is one to watch for because it can impact performance, safety, and efficiency and doesn’t look good. In this post, we look at what causes soot buildup in a gas fireplace, how it impacts your system, and how to get rid of it.


Professional Gas Log Installation in Costa Mesa CACommon Causes of Soot Buildup in a Gas Fireplace

Chimney Burner Ports

The flames powering the fireplace come out of several burner ports. Each port allows a gas stream to flow into the combustion area. The issue is that the ports are relatively small, making them susceptible to getting clogged with debris, like dirt, dust, insects, and broken pieces of ceramic logs. In severe cases, the clog can completely block the port. Clogged ports create an imbalance in the air-fuel mixture required for proper combustion, which creates excess soot.

Incorrect Log Positioning

Many gas fireplace owners clean their ceramic logs themselves. While this saves money, there’s the potential to put the logs out of the correct position, which can cause excess soot and create a safety hazard. Remember, the ceramic logs are more than just decorative; they’re essential to the fireplace functioning correctly, and their arrangement must be precise. That’s why we recommend professional cleaning and maintenance to ensure your system is safe and runs efficiently.

Improper Airflow

Like a wood-burning fireplace, a gas model requires the right mixture of oxygen and gas for efficient combustion. This isn’t an issue with unvented fireplaces; however, if you have a venting system, it must be unobstructed and clean. Obstructed vents can cause incomplete combustion, resulting in excess soot.

Infrequent Maintenance

It’s true that gas fireplaces don’t need as much maintenance as a wood-burning model, but they’re not set-it-and-forget-it systems either.

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Chimney Inspection and Gas fireplace maintenance  Fullerton CA

Experts recommend annual inspection and maintenance by a certified technician to keep it clean and working correctly. Routine maintenance minimizes problems like soot buildup, reduces the likelihood of expensive repairs, ensures the system is safe, and extends its lifespan.


How to Remove Soot Buildup From a Gas Fireplace

As mentioned, experts recommend hiring a professional for gas fireplace cleaning and maintenance. However, if you insist on doing it yourself, here are a few tips to get rid of soot buildup.

  • Turn Off the Gas: Before you tackle any fireplace cleaning or maintenance, shut off the gas and en-sure the system is completely cooled down before you start, to prevent accidents or injuries.
  • Wear Protective Gear: Cleaning soot is messy, so wear gloves, goggles, and a dust mask to avoid getting dirty or inhaling soot particles. Also, lay down something to protect your floors from soot stains.
  • Remove the Logs: Remember, the logs’ position is critical to your fireplace’s operation and efficiency. Take a photo of how they’re laid out before you remove them, so you can put them back in the correct order and position.
  • Vacuum the Fireplace Interior: Use a vacuum cleaner with a crevice attachment to remove loose soot particles from the fireplace’s interior, cleaning the burner ports thoroughly.
  • Scrub the Interior: When finished vacuuming, use a stiff-bristled brush, like horsehair, to scrub the interior to remove soot stains. However, be gentle to avoid damage. Moreover, please don’t use chemical cleaners or solvents on the interior or the logs because they can cause discoloration or emit toxic fumes when you use your fireplace again.
  • Use a Dry Washcloth: Once everything is scrubbed and vacuumed, use a dry washcloth or microfiber towel to clean the fine debris the vacuum couldn’t pick up.

If you have stubborn stains, use warm water; however, check with your owner’s manual to see if it’s safe.

Fireplace Cleaning inTorrance CA

Call the Gas Fireplace Experts at Oliver Twist

Oliver Twist Chimney & Fireplace is a trusted, local, family-owned chimney and fire-place service company that’s served residents in Orange County, Long Beach, and Los Angeles for over three decades.

Homeowners and property managers come to us as their go-to source for fireplace cleaning, maintenance, repairs, inspection, and installation. Call us today to schedule an appointment at (714) 843-9944 or request service online.