A yellow furnace flame means the gas isn’t burning cleanly—often due to dust, rust, or restricted airflow. In Follansbee homes, this can lead to carbon monoxide buildup or weak heating performance. The flame should always be steady and blue. If it’s yellow or flickering, turn off the furnace and schedule professional service immediately.
Many Follansbee homes near Main Street, Hooverson Heights, and Allegheny Street rely on aging gas furnaces installed decades ago. Winters are cold and damp along the Ohio River, and basements tend to trap humidity and dust. That mix can clog burner openings or cause corrosion, both of which disrupt clean combustion. Limited airflow in enclosed utility spaces can make the issue even worse.
Honest Fix technicians often find that yellow flames come from dirty burners or blocked pilot orifices. Poor ventilation in older homes or tight basement setups reduces oxygen, which changes how the gas burns. In hillside neighborhoods like Chapman Street or McKinley Avenue, low air pressure or older gas supply lines can also affect flame color. Each of these problems needs prompt correction to ensure safe operation.
A yellow or wavering flame signals incomplete combustion, producing carbon monoxide (CO)—a colorless, odorless, and deadly gas. In tightly sealed Follansbee homes, CO can accumulate quietly as windows stay closed through winter. Honest Fix technicians test every furnace for CO and confirm safe oxygen levels during every tune-up and cleaning.
Most yellow-flame issues are corrected during a $109 furnace tune-up, which includes CO testing, cleaning, and gas pressure adjustment. Diagnostic service calls are $99. Each visit includes Leo the Lion’s magnet, worth $25 off any future repair or tune-up.
No. The yellow color means incomplete combustion that can release dangerous CO even if it’s still producing heat.
Once per year, ideally before winter begins, to prevent soot buildup and ensure clean operation.
Exact HVAC replacement quotes available at (740) 825-9408 or HonestFix.com/schedule-service.
Author: Alex Largent