In order to preserve the functionality of your home's heating system, the flue serves a vital purpose. By expelling exhaust gases outside your home, the flue helps maintain safety and efficiency. If it malfunctions, this can lead to severe safety risks, expensive repairs, and decreased heating system performance.
Blockages In The Flue
Flue blockages rank among the most frequent problems encountered with furnace and boiler systems. Animal nests and creosote are two of the most common causes of significant obstructions in the flue. These obstructions could impede the proper venting of exhaust gases. Consequently, carbon monoxide may accumulate within your home, which could pose a deadly risk to your family.
To avoid blockages, arrange for an annual flue inspection and cleaning by a certified HVAC technician. Routine maintenance can facilitate the removal of these deposits before they result in performance issues. Additionally, be cautious about the materials you burn in your fireplace or stove. Refrain from burning plastics or other unsuitable materials that can generate toxic gases and create large amounts of residue.
Corrosion On The Flue
The flue may be compromised by corrosion or rust, leading to cracks or holes that enable noxious gases to infiltrate your home. Indications of corrosion or rust include flaking or peeling metal, rust stains, or a gas smell near your heating system.
Proper ventilation and moisture control can significantly reduce the chance of your home's flue becoming severely rusted. Controlling humidity levels is crucial because condensation is a primary contributor to corrosion and rust. Frequent inspections and maintenance performed by a certified HVAC technician can also identify and correct early signs of corrosion or rust, preventing extensive damage. For example, these professionals can apply a metal sealant that limits the risk of corrosion forming.
Cracks In The Flue Tiles Or Liner
Flue tiles or liners with cracks may also allow hazardous gases to seep into your home. Extreme temperature fluctuations can induce these cracks. Not surprisingly, these issues are most common with older flues with years of wear. Avoid abrupt temperature shifts in your heating system to prevent cracked flue tiles or liners.
Improper Installation Of The Flue
Another widespread issue that can hinder your heating system's effectiveness is improper flue installation. Incorrectly installed flue can result in leaks or inadequate ventilation, causing safety risks and diminished efficiency. Signs of improper flue installation include visible damage or cracks in the flue or exhaust pipe, gas odors, and back drafting.
To have your heating flue inspected, contact a heating repair professional in your area.